Resonators (distributed Parameter Type) Patents (Class 333/219)
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Patent number: 8198960Abstract: An electric field coupler includes a strip-like coil formed by bending a strip-like conductor which snakes along a plane perpendicular to a coupling direction in which electric field coupling occurs, such that coil axes are perpendicular to the coupling direction, the strip-like coil having an electrical length of one-half wavelength of a predetermined frequency of a radio-frequency signal and having a form in which the coil axes surround a central portion along the plane. The strip-like coil produces coupling by a longitudinal wave electric field which vibrates in the coupling direction at the central portion.Type: GrantFiled: July 20, 2009Date of Patent: June 12, 2012Assignee: Sony CorporationInventor: Takanori Washiro
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Patent number: 8198953Abstract: A two-dimensional left-handed metamaterial that functions as a two-dimensional electromagnetic wave propagation medium in which the equivalent permittivity and permeability of the medium are both negative, exhibits superior low-loss, broadband characteristics as a left-handed material, and has a simple constitution, enabling low-cost manufacture.Type: GrantFiled: September 18, 2007Date of Patent: June 12, 2012Assignee: Yamaguchi UniversityInventor: Atsushi Sanada
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Publication number: 20120119853Abstract: A resonant element is provided with a multilayer board, comprising a plurality of conductor layers isolated by a dielectric, a signal via conductor, penetrating through the multilayer board, and a plurality of ground vias, penetrating thought the multilayer board and disposed around the signal via conductor. The multilayer board comprises a first conductor layer, a second conductor layer, and a corrugated conductor layer disposed between the first and the second conductor layers. The corrugated conductor layer comprises a corrugated signal plate, connected to the signal via conductor, and a corrugated ground plate, connected to the plurality of ground vias, isolated from the corrugated signal plate by the dielectric.Type: ApplicationFiled: July 21, 2009Publication date: May 17, 2012Inventor: Taras Kushta
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Patent number: 8174341Abstract: A metamaterial comprises a substrate and a plurality of resonators supported by the substrate, each resonator including a first conducting segment and a second conducting segment, there being at least one adjustable capacitor and at least one bias capacitor located between the first and second conducting segments. In some examples, the first conducting segment, second conducting segment, bias capacitor, and adjustable capacitor are substantially coplanar and may be formed by patterning a metal film supported by the substrate. Bias lines may be configured so as to allow a bias potential to be applied between the first and second conducting segments so as to vary the capacitance of the adjustable capacitor.Type: GrantFiled: December 1, 2008Date of Patent: May 8, 2012Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.Inventors: Jae Seung Lee, Serdar H. Yonak
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Patent number: 8164400Abstract: A distributed constant type filter includes a substrate including a part made of a first dielectric material having a first relative dielectric constant and a different-material part made of a second dielectric material having a second relative dielectric constant different from the first relative dielectric constant. A filter pattern is formed on a top surface and a ground pattern is formed on a bottom surface of the substrate. Part of the filter pattern is formed on the different-material part.Type: GrantFiled: October 30, 2006Date of Patent: April 24, 2012Assignee: Fujitsu Component LimitedInventors: Hideki Iwata, Masahiro Yanagi, Shigemi Kurashima, Takashi Yuba, Masahiro Kaneko, Yuriko Segawa, Takashi Arita
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Publication number: 20120062345Abstract: Described herein are improved configurations low loss electrical conductors. The designs for a conductive wire include several mutually insulated coaxial conducting shells. The shells extend through the length of the conductive wire with each successive outer shell completely covering each inner shell. The distribution and size of each may be optimized for frequency, current loads and other parameters to increase the effective cross section of the effective conductor wire. The proposed structures provide for a reduced effective resistance for oscillating currents of frequencies of 1 MHz or more.Type: ApplicationFiled: August 31, 2011Publication date: March 15, 2012Inventors: Andre B. Kurs, Morris P. Kesler
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Publication number: 20120062343Abstract: A signal transmission device includes: a first substrate and a second substrate disposed to oppose each other in a first direction; a first resonator including a plurality of first quarter wavelength resonators provided in a first region of the first substrate, and interdigitally coupled to one another in the first direction, and a single or the plurality of second quarter wavelength resonators provided in a region of the second substrate corresponding to the first region and interdigitally coupled to one another in the first direction; and a second resonator electromagnetically coupled to the first resonator, and performing a signal transmission between the second resonator and the first resonator. The first and the second quarter wavelength resonators located at positions nearest to one another in the first resonator, respectively have open ends which are disposed to oppose one another, and respectively have short-circuit ends which are disposed to oppose one another.Type: ApplicationFiled: August 30, 2011Publication date: March 15, 2012Applicant: TDK CORPORATIONInventor: Tatsuya FUKUNAGA
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Patent number: 8130062Abstract: A microstripline filter that includes principal-surface lines, a ground electrode, and input/output electrodes. A first principal-surface line is capacitively coupled to a second principal-surface line. The second principal-surface line is inductively coupled to a third principal-surface line. The third principal-surface line is capacitively coupled to a fourth principal-surface line. The first through fourth principal-surface lines include open-end-side electrodes, short-circuit-end-side electrodes, and end-opened electrodes. A first pair of the end-opened electrodes are adjacent to each other, whereas a first pair of the short-circuit-end-side electrodes are separate from each other. A second pair of end-opened electrodes are adjacent to each other, whereas a second pair of short-circuit-end-side electrodes are separate from each other.Type: GrantFiled: July 15, 2009Date of Patent: March 6, 2012Assignee: Murata Manufacturing Co., Ltd.Inventors: Soichi Nakamura, Motoharu Hiroshima
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Patent number: 8130061Abstract: A filter being small and having a narrowband filter characteristic is achieved using interdigital-coupled resonators. A first resonator and a second resonator are configured using interdigital-coupled quarter-wavelength resonators respectively. In addition, the first resonator and the second resonator are disposed so as to extend along directions intersecting with each other at a predetermined angle ?. Thus, coupling between the resonators is reduced compared with, for example, a case that the first resonator and the second resonator are, as a whole, disposed in parallel to each other. The angle ?, with which the first resonator and the second resonator are disposed respectively, is adjusted, thereby coupling between the resonators may be made into a desired state. Thus, a desired narrowband filter characteristic is obtained.Type: GrantFiled: September 24, 2008Date of Patent: March 6, 2012Assignee: TDK CorporationInventor: Tatsuya Fukunaga
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Publication number: 20120050236Abstract: This disclosure provides implementations of electromechanical systems resonator structures, devices, apparatus, systems, and related processes. In one aspect, a contour mode resonator device includes a first conductive layer with a plurality of first layer electrodes including a first electrode at which a first input signal can be provided and a second electrode at which a first output signal can be provided. A second conductive layer includes a plurality of second layer electrodes including a first electrode proximate the first electrode of the first conductive layer and a second electrode proximate the second electrode of the first conductive layer. A second signal can be provided at the first electrode or the second electrode of the second conductive layer to cooperate with the first input signal or the first output signal to define a differential signal. A piezoelectric layer is disposed between the first conductive layer and the second conductive layer.Type: ApplicationFiled: April 26, 2011Publication date: March 1, 2012Applicant: QUALCOMM MEMS TECHNOLOGIES, INC.Inventors: Chi Shun Lo, Jonghae Kim, Sang-June Park, Sanghoon Joo, Chengjie Zuo, Changhan Yun
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Publication number: 20120049981Abstract: A signal transmission device includes substrates and resonance sections resonating at the predetermined resonance frequency. At least one of the substrates is formed with two or more resonators in the second direction, and the remaining one or two or more of the substrates are each formed with one or more resonators in the second direction, and at least one of the resonance sections is configured by a plurality of resonators opposing one another in the first direction between the substrates, the opposing resonators form a coupled resonator resonating as a whole at the predetermined resonance frequency through electromagnetic coupling in a hybrid resonance mode, and in a state that the substrates are separated away from one another to fail to establish electromagnetic coupling thereamong, the resonators forming the coupled resonator resonate at any other resonance frequency different from the predetermined resonance frequency on the substrate basis.Type: ApplicationFiled: August 30, 2011Publication date: March 1, 2012Applicant: TDK CORPORATIONInventor: Tatsuya FUKUNAGA
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Patent number: 8120446Abstract: An electronic component includes a layered substrate including a plurality of dielectric layers stacked, and three resonators provided within the layered substrate. One of the three resonators includes resonator-forming conductor layers of a first type and a second type that each have a short-circuited end and an open-circuited end, relative positions of the short-circuited end and the open-circuited end being reversed between the first and second types. The resonator-forming conductor layers of the first type and the second type are arranged to be adjacent to each other in a direction in which the plurality of dielectric layers are stacked.Type: GrantFiled: October 20, 2008Date of Patent: February 21, 2012Assignee: TDK CorporationInventors: Shigemitsu Tomaki, Noriaki Ootsuka, Yoshikazu Tsuya, Kazushige Shinoda
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Publication number: 20110316652Abstract: An multiband resonator of the present invention includes a dielectric substrate including three or more dielectric layers, a ground conductor, a main-line conductor, a sub-line conductor, a sub open stub, a main open stub, a short-circuit conductor, a main through conductor, and a sub through conductor. The short-circuit conductor electrically connects one end of the main-line conductor to one end of the sub-line conductor and to the ground conductor. The main through conductor electrically connects the other end of the main-line conductor to one end of the main open stub that is aligned with that other end of the main-line conductor. The sub through conductor electrically connects the other end of the sub-line conductor to one end of the sub open stub that is aligned with that other end of the sub-line conductor.Type: ApplicationFiled: June 22, 2011Publication date: December 29, 2011Applicant: NTT DOCOMO, INC.Inventors: Kei SATOH, Shoichi Narahashi, Yuta Takagi
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Patent number: 8063316Abstract: In accordance with a first embodiment, the present invention provides a circuit substrate comprising a first surface; a second surface; a first via having a first end near said first surface and a second end near said second surface; a second via having a first end near said first surface and a second end near said second surface; a first conductive element electrically coupling said first end of said first via and said first end of said second via; a second conductive element electrically coupling said second end of said first via and said second end of said second via; an input signal line coupled to said first via; and an output signal line coupled to said second via.Type: GrantFiled: June 14, 2007Date of Patent: November 22, 2011Assignee: Flextronics AP LLCInventor: Dan Gorcea
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Patent number: 8054146Abstract: The invention provides simplified negative index materials (NIMs) using wire-pair structures, 4-gap single ring split-ring resonator (SRR), fishnet structures and overleaf capacitor SRR. In the wire-pair arrangement, a pair of short parallel wires and continuous wires are used. In the 4-gap single-ring SRR, the SRRs are centered on the faces of a cubic unit cell combined with a continuous wire type resonator. Combining both elements creates a frequency band where the metamaterial is transparent with simultaneously negative ? and ?. In the fishnet structure, a metallic mesh on both sides of the dielectric spacer is used. The overleaf capacitor SRR changes the gap capacities to small plate capacitors by making the sections of the SRR ring overlap at the gaps separated by a thin dielectric film. This technique is applicable to conventional SRR gaps but it best deploys for the 4-gap single-ring structures.Type: GrantFiled: November 14, 2006Date of Patent: November 8, 2011Assignee: Iowa State University Research Foundation, Inc.Inventors: Costas M. Soukoulis, Jiangfeng Zhou, Thomas Koschny, Lei Zhang, Gary Tuttle
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Patent number: 8046046Abstract: A RF array coil system and method for magnetic resonance imaging are provided. The array coil system includes an anterior coil section having a main anterior coil section and at least one secondary anterior coil section removably attachable to the main anterior coil section. The array coil system further includes a posterior coil section having a main posterior coil section and at least one secondary posterior coil section removably attachable to the main posterior coil section.Type: GrantFiled: April 20, 2004Date of Patent: October 25, 2011Assignee: General Electric CompanyInventors: Pei H. Chan, Labros Petropoulos
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Publication number: 20110248799Abstract: Q of resonant elements formed over lossy substrates such as in a CMOS process is improved by forming the ground plane of the resonant element immediately over a high impedance layer to reduce cross coupling and eddy currents. A new type of meandering hairpin resonator configuration is also introduced providing, for example, for 4th order cross coupled filters of high selectivity and compact layout.Type: ApplicationFiled: September 23, 2008Publication date: October 13, 2011Inventors: Bo Yang, Stan Skafidas, Robin Evans
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Patent number: 8031035Abstract: A ceramic multilayer construction includes three resonators designed as parallel strip lines that are capacitatively or magnetically coupled to each other. All circuit components are implemented in the form of metallizations in multilayer construction. Capacitative couplings are implemented by coupling capacitors. The strip line resonators are shortened by shunt arms to ground having grounding capacitors arranged therein.Type: GrantFiled: October 7, 2010Date of Patent: October 4, 2011Assignee: EPCOS AGInventors: Alexander Chernyakov, Georgiy Sevskiy, Patric Heide, Borys Vorotnikov
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Publication number: 20110234010Abstract: A contactless power transfer system is proposed. The system includes a first coil coupled to a power source and configured to produce a magnetic field. A second coil is configured to receive power from the first coil via the magnetic field. A field focusing element is disposed between the first coil and the second coil and configured as a self resonant coil having a standing wave current distribution. The field focusing element is further configured to focus the magnetic field onto the second coil and enhance the coupling between the first coil and the second coil.Type: ApplicationFiled: March 25, 2010Publication date: September 29, 2011Applicant: GENERAL ELECTRIC COMPANYInventors: Adnan Kutubuddin Bohori, James William Bray, Somakumar Ramachandrapanicker, Suma Memana Narayana Bhat
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Patent number: 8018306Abstract: A high quality resonator has a three dimensional Defected Ground Structure (DGS) in the transmission line. The resonator includes a substrate installed at the center of the resonator floating in the air through supporting members, a transmission line on the substrate, and an upper ground plane member above the substrate at a predetermined interval. A DGS pattern with a predetermined shape is on each portion of the body of the ground plane member symmetrically with respect to the transmission line. An upper cover closely contacts the upper surface of the upper ground plane member to seal the upper opening of the DGS pattern on the upper ground plane member. A lower ground plane member has the same pattern as the upper DGS, and a lower cover functions similar to the upper cover. The upper and lower members should be installed symmetrically with respect to the substrate.Type: GrantFiled: June 8, 2009Date of Patent: September 13, 2011Assignee: Agency for Defense DevelopmentInventors: Im-Seob Shin, In-Sun Kim, Si-Chan Ryoo, Bon-Joong Koo
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Patent number: 8018305Abstract: An electronic component includes first and second resonators provided within a layered substrate including stacked dielectric layers. The first resonator includes resonator-forming conductor layers of a first type and a second type. The resonator-forming conductor layers of the first type and the second type are reversed in relative positions of the short-circuited end and the open-circuited end, and are alternately arranged in the stacking direction of the dielectric layers. An input terminal is connected to all of the resonator-forming conductor layers of the first type. The second resonator includes resonator-forming conductor layers of a third type and a fourth type. The resonator-forming conductor layers of the third type and the fourth type are reversed in relative positions of the short-circuited end and the open-circuited end, and are alternately arranged in the stacking direction of the dielectric layers.Type: GrantFiled: October 20, 2008Date of Patent: September 13, 2011Assignee: TDK CorporationInventors: Shigemitsu Tomaki, Noriaki Ootsuka, Yoshikazu Tsuya, Kazushige Shinoda
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Publication number: 20110215886Abstract: A variable resonator includes a first transmission line 101, a second transmission line 102 and a plurality of switch circuits 150. The electrical length of the first transmission line 101 is equal to the electrical length of the second transmission line 102. The characteristic impedance for the even mode of the first transmission line 101 is equal to the characteristic impedance for the even mode of the second transmission line 102. The characteristic impedance for the odd mode of the first transmission line 101 is equal to the characteristic impedance for the odd mode of the second transmission line 102. Each switch circuit 150 is connected to any of the first transmission line 101 and the second transmission line 102, and one of the switch circuits 150 is turned on.Type: ApplicationFiled: March 4, 2011Publication date: September 8, 2011Applicant: NTT DOCOMO, INC.Inventors: Kunihiro KAWAI, Hiroshi OKAZAKI, Shoichi NARAHASHI
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Patent number: 8008995Abstract: The element size of a stripline filter that achieves a high efficiency percentage with optional stable filter characteristics, is reduced. A stripline filter includes substantially L-shaped top surface resonant lines. The top surface resonant lines include connection electrode parts, first line parts, and second line parts. The connection electrode parts are formed so as to have a width greater than line widths of side surface resonant lines. Each line part faces an edge of a corner portion of a central top surface resonant line at an interval. An edge of each first line part on an edge side of a dielectric substrate, other than a connection portion with the connection electrode part, faces an edge of the dielectric substrate at an interval.Type: GrantFiled: June 4, 2010Date of Patent: August 30, 2011Assignee: Murata Manufacturing Co., Ltd.Inventors: Nobuyoshi Honda, Tatsuya Tsujiguchi, Yasunori Takei
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Patent number: 8004375Abstract: Provided is an Electromagnetic Bandgap (EBG) structure, particularly, a resonator and a bandpass filter having an overlay EBG structure, and a method of manufacturing the resonator. The resonator is manufactured by forming a transmission line and ground plates on a substrate, arranging a plurality of reflector units at regular intervals along the longitudinal direction of the transmission line, and removing at least one reflector among the plurality of reflectors, thus forming a common resonating mode. Therefore, since reflector units constructing capacitance components are separated from a substrate, it is possible to prevent electromagnetic waves from leaking out of the substrate and ensure a high Q characteristic in a high frequency environment due to a resonating unit formed between the reflector units.Type: GrantFiled: June 9, 2008Date of Patent: August 23, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Cheol-gyu Hwang, Sung-tae Choi, Jung-han Choi, Seung-ho Hwang, Young-hwan Kim, Dong-hyun Lee
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Patent number: 7994880Abstract: An energy transferring system including a source-side resonator, an intermediate resonant module, and a device-side resonator is provided. The three resonators substantially have the same resonant frequency for generating resonance. The energy on the source-side resonator is coupled to the intermediate resonant module, such that non-radiative energy transfer is performed between the source-side resonator and the intermediate resonant module. The energy coupled to the intermediate resonant module is further coupled to the device-side resonator, such that non-radiative energy transfer is performed between the intermediate resonant module and the device-side resonator to achieve energy transfer between the source-side resonator and the device-side resonator. The coupling coefficient between the intermediate resonant module and its two adjacent resonators is larger than the coupling coefficient between the source-side resonator and the device-side resonator.Type: GrantFiled: June 19, 2008Date of Patent: August 9, 2011Assignee: Darfon Electronics Corp.Inventors: Chih-Jung Chen, Chih-Lung Lin, Zuei-Chown Jou
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Patent number: 7983728Abstract: According to an aspect of the present invention, there is provided a resonator including: a transmission line including a conductor line with a bent portion, wherein the conductor line has a plurality of slits formed therein, the slits being formed in an extending direction of the conductor line to pass through the bent portion, and wherein the slits are formed to have intervals that become narrower from an outer-side toward an inner-side of the bent portion.Type: GrantFiled: November 25, 2008Date of Patent: July 19, 2011Assignee: Kabushiki Kaisha ToshibaInventors: Noritsugu Shiokawa, Hiroyuki Kayano
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Patent number: 7982561Abstract: A resonator system is presented that has first and second cavity resonators for use in an RF amplifying system employing an RF amplifier device having an output circuit and an RF signal broadcasting antenna coupled to the output circuit. The resonators are interposed between the amplifying device output terminal and the antenna. The first resonator is comprised of a transmission line being a length of two coaxial conductors and tuned to the 3rd harmonic of the operating frequency (3fo). Each resonator has first and second opposing ends with the first end being an open end and the second end being a shorted end. The open end of the first resonator is connected to the output terminal of the RF amplifying device. The second resonator is connected in series with the first resonator and is tuned to the fundamental operating frequency (fo).Type: GrantFiled: September 5, 2008Date of Patent: July 19, 2011Assignee: Harris CorporationInventor: Geoffrey Norman Mendenhall
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Patent number: 7978027Abstract: A coplanar waveguide resonator (100a) has a center conductor (101) formed on a dielectric substrate (105) that has a line conductor (a center line conductor) (101b) extending in the input/output direction, a ground conductor (103) that is disposed on the dielectric substrate (105) across a gap section from the center conductor (101), and a line conductor (a base stub) (104) formed as an extension line from the ground conductor (103), and a part of the base stub (104) constitutes a line conductor (a first collateral line conductor) (104a) disposed in parallel with the center line conductor (101b).Type: GrantFiled: March 28, 2008Date of Patent: July 12, 2011Assignee: NTT DoCoMo, Inc.Inventors: Kei Satoh, Daisuke Koizumi, Shoichi Narahashi
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Patent number: 7978028Abstract: At a first coupling point on a ring resonator having a ring-shaped transmission line, an input feeder is electromagnetically coupled with the ring resonator. An output feeder is electromagnetically coupled with the ring resonator at a second coupling point on the ring resonator. A dual mode generating line is disposed in an inner area of the ring resonator. One end of the dual mode generating line is electromagnetically coupled with the ring resonator at a third coupling point on the ring resonator, and the other end is electromagnetically coupled with the ring resonator at a fourth coupling point on the ring resonator distant from the third coupling point by half of a transmission line length of the ring resonator.Type: GrantFiled: March 26, 2009Date of Patent: July 12, 2011Assignee: Fujitsu LimitedInventor: Masatoshi Ishii
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Patent number: 7973296Abstract: Spiral coils generate very powerful electromagnetic fields by operating with two different but simultaneous resonant behaviors. Quarter-wave resonance is established by adjusting the frequency (and wavelength) of a radiofrequency (RF) voltage source until the length of the spiral conductor is equal to ¼ of the wavelength of the alternating voltage. This generates an electromagnetic standing wave with at least one peak node and at least one null node. Inductive-capacitive (L/C) resonance is established by optimizing the thickness and width of the wire ribbon used to make the spiral coil. When inductance and capacitance are balanced, the current response will synchronize with the voltage input, creating in-phase behavior, minimal total impedance, and maximal power output.Type: GrantFiled: March 5, 2009Date of Patent: July 5, 2011Assignee: Tetraheed LLCInventor: Richard T. Quick
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Patent number: 7971756Abstract: A filtering device includes an isolation substrate including a first plane and a second plane, a micro-strip line deposited on the first plane of the isolation substrate for transmitting signals, and a ground metal layer deposited on the second plane of the isolation substrate for providing grounding. A meander-shaped resonating cavity is formed in an area of the ground metal layer corresponding to an area of the micro-strip line, for generating a rejection band on the micro-strip line.Type: GrantFiled: June 1, 2009Date of Patent: July 5, 2011Assignee: Wistron NeWeb CorporationInventors: Tsan-Chou Wu, Wen-Tsai Tsai, Chih-Chang Ko
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Patent number: 7970447Abstract: A resonance pattern (21) made of conductive material and having a circular plan shape is formed over the principal surface of a dielectric substrate. First and second virtual straight lines mutually crossing at a right angle are defined. A first input port (22) and a first output port (23) are electromagnetically coupled to the resonance pattern at two cross points between the first virtual straight line and an outer circumference line of the resonance pattern. A second input port (24) and a second output port (25) are electromagnetically coupled to the resonance pattern at two cross points between the second virtual straight line and the outer circumference line of the resonance pattern. A first inter-port waveguide (26) propagates a high frequency signal output to the first output port to the second input port.Type: GrantFiled: April 24, 2008Date of Patent: June 28, 2011Assignee: Fujitsu LimitedInventors: Masatoshi Ishii, Kazunori Yamanaka, John D. Baniecki, Akihiko Akasegawa, Teru Nakanishi
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Publication number: 20110150030Abstract: Methods and apparatuses for Micro-Electro-Mechanical Systems (MEMS) resonator to monitor the platform temperature. Fabricating the resonator on a relatively low cost flexible polymer substrate rather than silicon provides mechanical flexibility as well as design flexibility with respect to sensor placement. Sensor readout and control circuits can be on silicon if desired, for example, a positive feedback amplifier to form an oscillator in conjunction with the resonator and a counter to count oscillator frequency.Type: ApplicationFiled: December 23, 2009Publication date: June 23, 2011Inventors: MOHAMED A. ABDELMONEUM, David A. Kaysen
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Publication number: 20110140809Abstract: A thin film resonator for a wireless power transmission is provided. The thin film resonator may include a first transmission line unit provided as a thin film type, a second transmission line unit also provided as the thin film type, and a capacitor inserted at a predetermined position of the first transmission line unit.Type: ApplicationFiled: December 14, 2010Publication date: June 16, 2011Inventors: Young Ho Ryu, Eun Seok Park, Sang Wook Kwon, Young Tack Hong, Nam Yun Kim, Jung Hae Lee, Jae Hyun Park, Byung Chul Park
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Publication number: 20110115574Abstract: A switch is replaced with a parallel resonant circuit 4. More specifically, a variable resonator includes a line part 1 that includes one or more lines and has an annular shape, at least two parallel resonant circuits 4 capable of changing a characteristic, and at least three variable reactance blocks 2 capable of changing a reactance value, in which the parallel resonant circuits 4 are electrically connected to the line part 1 at one end thereof at different positions on the line part 1, and the variable reactance blocks 2 are electrically connected to the line part 1 at predetermined intervals based on an electrical length at a resonance frequency.Type: ApplicationFiled: November 12, 2010Publication date: May 19, 2011Applicant: NTT DOCOMO, INC.Inventors: Kunihiro KAWAI, Hiroshi Okazaki, Shoichi Narahashi
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Patent number: 7940148Abstract: A ball grid array ceramic resonator including a substrate having one or more strips of conductive material on opposed first and second surfaces of the substrate. One or more conductive vias extend through the substrate and define termination ends in the respective substrate surfaces. In one embodiment, a plurality of conductive spheres/balls defining respective ground pads are disposed over the ends of said vias terminating in said one or more strips of conductive material on said first or second surface and another conductive sphere is disposed over one of the strips of conductive material to define an RF signal input pad.Type: GrantFiled: October 30, 2007Date of Patent: May 10, 2011Assignee: CTS CorporationInventors: Thomas A. Knecht, Glen Reeser
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Publication number: 20110095851Abstract: Vias for differential signals are typically of a lower impedance than the signal lines connected to them. The noise and reflected signals resulting in impedance mismatch may require circuits to be operated at a frequency far lower than desired. One or more embodiments of the present invention avoid impedance mismatch in circuits and achieve an advance in the art by providing a via with higher impedance through the addition of split ring resonators (SSRs) to each end of the via.Type: ApplicationFiled: October 27, 2009Publication date: April 28, 2011Applicant: Xilinx, Inc.Inventor: Christopher P. Wyland
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Patent number: 7907984Abstract: A resonance pattern (21) made of conductive material and having a circular plan shape is formed over the principal surface of a dielectric substrate. First and second virtual straight lines mutually crossing at a right angle are defined. A first input port (22) and a first output port (23) are electromagnetically coupled to the resonance pattern at two cross points between the first virtual straight line and an outer circumference line of the resonance pattern. A second input port (24) and a second output port (25) are electromagnetically coupled to the resonance pattern at two cross points between the second virtual straight line and the outer circumference line of the resonance pattern. A first inter-port waveguide (26) propagates a high frequency signal output to the first output port to the second input port.Type: GrantFiled: April 24, 2008Date of Patent: March 15, 2011Assignee: Fujitsu LimitedInventors: Masatoshi Ishii, Kazunori Yamanaka, John D. Baniecki, Akihiko Akasegawa, Teru Nakanishi
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Patent number: 7907036Abstract: A microstripline filter in which characteristics of a plurality of resonators which are connected to one another in a manner of inductive coupling are precisely set. The microstripline filter includes a ground electrode, main-surface lines, common electrodes, short-circuit electrodes, and input/output electrodes. The ground electrode is arranged on a lower surface of a dielectric substrate having a rectangular plate shape. The plurality of main-surface lines are arranged on an upper surface of the dielectric substrate and form respective resonators. The common electrodes connect some of the main-surface lines to one another in conduction states. The plurality of short-circuit electrodes connect a group of the main-surface lines which are brought to conduction states by the common electrodes to the ground electrode through an identical side surface of the dielectric substrate. The input-and-output electrodes are connected to corresponding ones of the resonators including the main-surface lines.Type: GrantFiled: August 12, 2009Date of Patent: March 15, 2011Assignee: Murata Manufacturing Co., Ltd.Inventors: Motoharu Hiroshima, Soichi Nakamura, Yasunori Takei
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Patent number: 7902945Abstract: A dual-mode filter capable of providing a high degree of design freedom and/or tunability is disclosed. The dual-mode filter includes a ring resonator; an input feeder and an output feeder disposed substantially orthogonal with respect to each other and with respect to the ring resonator so as to be electromagnetically coupled to the ring resonator; and a dual-mode generating line disposed inside the ring resonator in a manner so that the dual-mode generating line does not overlap with a line extending from the input feeder or a line extending from the output feeder.Type: GrantFiled: May 8, 2008Date of Patent: March 8, 2011Assignee: Fujitsu LimitedInventors: Masatoshi Ishii, Kazunori Yamanaka, John D. Baniecki, Akihiko Akasegawa, Teru Nakanishi
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Patent number: 7902941Abstract: It is possible to generate an additionally attenuation pole in a laminate type band pass filter without adding an attenuation circuit and improve the attenuation characteristics of the laminate type band pass filter by independently controlling the frequencies of the attenuation poles. A diplexer is realized by using at least such a filter.Type: GrantFiled: April 29, 2008Date of Patent: March 8, 2011Assignee: NGK Spark Plug Co., Ltd.Inventors: Syouji Ono, Tetsuo Suehiro, Jyunichi Ichikawa, Keiji Takagi, Manabu Sato
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Patent number: 7902944Abstract: Provided are a stacked resonator capable of achieving miniaturization and minimum loss, and a stacked resonator capable of suppressing any unnecessary resonance mode due to interdigital-coupling. The stacked resonator includes a first conductor group having a plurality of conductor lines in a stacking arrangement, and a second conductor group having a plurality of other conductor lines in a stacking arrangement so as to be alternately provided opposing to the conductor lines in the first conductor group, thereby establishing an interdigital-coupling together with the first conductor group.Type: GrantFiled: January 23, 2007Date of Patent: March 8, 2011Assignee: TDK CorporationInventor: Tatsuya Fukunaga
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Patent number: 7893795Abstract: A circuit device having an inductor and a capacitor in parallel connection includes a planar inductor embedded in an insulating material layer, wherein the planar inductor has a winding wire portion, a first connection terminal and a second connection terminal. The first connection terminal and the second connection terminal are located at different elevations and have an overlapping region. A capacitor dielectric layer is located within the overlapping region between the first connection terminal and the second connection terminal, and the capacitor dielectric layer and the first connection terminal and the second connection terminal together form a capacitor.Type: GrantFiled: June 27, 2008Date of Patent: February 22, 2011Assignee: Industrial Technology Research InstituteInventors: Min-Wei Lee, Chin-Li Wang
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Publication number: 20110025550Abstract: A high-frequency module according to the present embodiment includes a substrate, a circuit board, and a resonator. The substrate has an input-output portion for high-frequency signals formed on one surface thereof. The circuit board includes a dielectric waveguide line with its end face exposed, and is placed on the one surface of the substrate such that a virtual plane extending beyond the end face is intersected by the one surface of the substrate. The resonator includes input-output end portions for high-frequency signals at ends thereof, in which one of the input-output end portions is connected to the end face of the dielectric waveguide line, and the other thereof is connected to the input-output portion of the substrate.Type: ApplicationFiled: March 31, 2009Publication date: February 3, 2011Applicant: KYOCERA CORPORATIONInventors: Djuniadi A. Sagala, Kazuki Hayata, Yuji Kishida
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Publication number: 20110018778Abstract: An integrated resonator and dipole for generation of high power directional RF energy.Type: ApplicationFiled: July 27, 2009Publication date: January 27, 2011Inventors: Jonathan R. Mayes, Christopher Wilson Hatfield
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Patent number: 7872549Abstract: A quasi-lumped resonator apparatus that makes use of an inductive portion having a plurality of spines extending therefrom along at least a portion of a length thereof, and a capacitive portion electrically and physically coupled to an end of the inductive portion. The capacitive portion has a plurality of spaced apart capacitive fringe plates extending therefrom. A housing is included for enclosing the inductive and capacitive portions. In another aspect a method is disclosed for forming a quasi-lumped resonator.Type: GrantFiled: May 15, 2008Date of Patent: January 18, 2011Assignee: The Boeing CompanyInventors: Paul J. Tatomir, Christ P. Tzelepis
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Patent number: 7851761Abstract: Multi-band polarized receiver-emitter THz domain visualization device that includes a group of elemental receiver units made from a resonant system sensitive to frequency and polarization, a micro-bead solid-state voltage amplifier in the gate of a differential FET system. The detection is based on the carrier perturbation method detected by a set of double gate comparator circuits that further generates an integrated signal driven to a digital analog converter. The signal from here is accessing event-based memory used to generate the 3D images. Multiple detection modules are coupled into a triangular detection element detecting a multitude of frequencies, in a cascade of bands from 2 mm to 1 micron. This THz chromatic detector is integrated in a surface morph array, or in an image area of a focusing device generating a pixel of information with band, amplitude, polarization and time parameters, driving to a complex 3D substance level visualizations.Type: GrantFiled: March 23, 2007Date of Patent: December 14, 2010Inventor: Liviu Popa-Simil
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Publication number: 20100277262Abstract: A resonator comprises a resonator mass (34), a first connector (30) on a first side of the mass connected between the resonator mass and a first fixed mounting and a second connector (32) on a second, opposite, side of the mass connected between the resonator mass and a second fixed mounting. Drive means drives the mass (34) into a resonant mode in which it oscillates in a sideways direction, thereby compressing one of the first and second connectors while extending the other of the first and second connectors.Type: ApplicationFiled: November 12, 2008Publication date: November 4, 2010Applicant: NXP B.V.Inventors: Kim Phan Le, Jozef T. M. Van Beek
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Publication number: 20100277259Abstract: In an ultra-wideband (UWB) band-pass filter, an equivalent circuit of a band-pass filter for direct frequency conversion is configured to have a series LC resonator and a parallel LC resonator, the parallel LC resonator is implemented as a short stub and an open stub, and the series LC resonator is implemented by modeling an inductor and a capacitor as a distributed constant circuit. The series LC resonator is implemented to have a 3D structure for effective designing of the band-pass filter by a new method of implementing a series resonator circuit. In the UWB band-pass filter, a low-pass filter for improving band-stop characteristics is additionally connected.Type: ApplicationFiled: December 16, 2008Publication date: November 4, 2010Applicant: Soonchunhyang University Industry Academy Cooperation FoundationInventors: Dal Ahn, Jong Im Park
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Patent number: 7821358Abstract: An electrical component with a filter circuit is specified that includes a first bandstop filter and a second bandstop filter. The first bandstop filter includes at least one resonator operating with acoustic waves and has a first stop band. The second bandstop filter includes LC elements and has a second stop band that lies at least one octave higher than the first stop band.Type: GrantFiled: November 14, 2008Date of Patent: October 26, 2010Assignee: EPCOS AGInventors: Christian Block, Alexander Freising, Christian Korden