Plural Patents (Class 343/826)
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Patent number: 11424544Abstract: An antenna is provided which includes a base piece, a first arm, and a second arm. The first arm includes a first section extending vertically from the base piece. The first arm also includes a second section connected to the first section. The second section vertically extends orthogonal from the first section. The first arm further includes a third section extending linearly from the second section. The third section is bent at an angle out of the vertical plane. The second arm includes a first section vertically extending from the base piece. The second arm also includes a second section connected to the first section. The second section angularly extends from the first section in the vertical plane. The second arm further includes a third section extending linearly from the second section. The third section is bent at an angle out of the vertical plane.Type: GrantFiled: July 21, 2021Date of Patent: August 23, 2022Inventor: David F Rivera
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Patent number: 11307234Abstract: In one embodiment, a method of estimating electromagnetic field data. The method comprises: identifying at least one electromagnetic field source in a geographical region; identifying at least one transmission model for the at least one electromagnetic field source based upon electromagnetic field data corresponding to the at least one electromagnetic field source; identifying at least one propagation model for the at least one electromagnetic field source based upon the electromagnetic field data and geographical terrain of the geographical region; and generating electromagnetic field estimates based upon the electromagnetic field data, the at least one transmission model and the at least one propagation model.Type: GrantFiled: December 15, 2017Date of Patent: April 19, 2022Assignee: CommScope Technologies LLCInventors: Gregory A. Macey, Laura R. Fontaine, Andrew E. Beck
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Patent number: 10680349Abstract: An antenna device is provided. The device includes a first antenna unit having a plurality of resonant frequency bands, a second antenna unit configured to shift a resonant frequency of a part of the plurality of resonant frequency bands of the first antenna unit, and a feeding unit configured to connect the first and second antenna units and to supply current thereto.Type: GrantFiled: June 30, 2014Date of Patent: June 9, 2020Assignee: Samsung Electronics Co., Ltd.Inventor: Tae Wook Kwon
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Patent number: 10615515Abstract: Low-profile end-fire antenna systems to provide additional throughput in areas of need with minimal structural and aesthetic impact. The system can include one or more low-profile end-fire antennas mounted to an exterior surface (e.g., a roof or parapet) of a building, parking deck, exiting cell tower, water tower, or other suitable structure. Additional electronics can be remotely mounted to maintain the low profile of the system. The system can be color-matched, or otherwise camouflaged, to maintain building aesthetics. The low-profile end-fire antenna can be mounted on a positioning stand to enable the elevation and/or azimuth of the system to be adjusted. The low profile of the antennas can reduce wind loading and enable the system to be mounted to existing structures without reinforcement, or other modification, to the structure. The orientation of the system relative to observers in many locations (e.g., on the ground) renders the system all but invisible.Type: GrantFiled: August 22, 2017Date of Patent: April 7, 2020Assignee: T-Mobile USA, Inc.Inventor: Chad Au
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Patent number: 10608719Abstract: An antenna array is described which comprises a plurality of antenna elements. Said antenna elements are grouped in at least two antenna groups. Said antenna elements of each antenna group emit coherent signals. Said antenna groups are arranged symmetrically to a central point of said antenna array. Further, a method for testing a device under test and a test system are described.Type: GrantFiled: October 12, 2016Date of Patent: March 31, 2020Assignee: ROHDE & SCHWARZ GMBH & CO. KGInventors: Corbett Rowell, Hendrik Bartko, Adam Tankielun
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Patent number: 9484633Abstract: An antenna, a portable electronic device incorporating an antenna and a method of operation are provided to enable both wide and multiple frequency band response. The antenna may include a feeding arm and a parasitic element. The feeding arm may include a conductive loop antenna and a conductive excitation arm portion. The loop antenna portion may extend from a first end that is configured to be grounded to a second end that is configured to be driven by radio frequency circuitry. The excitation arm may be coupled at a first end to the loop antenna portion and extend outwardly therefrom to an open end. The parasitic element may extend from a first end is configured to be grounded to a second end that is open. The parasitic element may extend along opposite sides of the excitation arm portion so as to be coupled thereto.Type: GrantFiled: October 26, 2012Date of Patent: November 1, 2016Assignee: Nokia Technologies OyInventor: Sung-Hoon Oh
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Patent number: 9362623Abstract: An antenna is disclosed. The antenna includes a substrate and an antenna layer disposed on a top surface of the substrate. The antenna layer includes a patch and a feed line electrically connected to the patch. The patch includes a number of slots disposed at a center portion thereof for forming a gridding part and an edge part surrounding the gridding part. A ratio of the width of the edge part and the width of the patch is at least 0.32.Type: GrantFiled: June 19, 2013Date of Patent: June 7, 2016Assignee: AAC TECHNOLOGIES PTE. LTD.Inventors: Yew Choon Tan, Ng Guan Hong, Roger Tay
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Patent number: 9105975Abstract: A second slit 117 and a fourth slit 119 provided in a first antenna element 150 and a first slit 116 and a third slit 118 provided in a second antenna element 151 are adjusted such that the mutual coupling between the first antenna element 150 and the second antenna element 151 in the desired frequency band is canceled, and reduces degradation in coupling between antenna elements without connecting the antenna elements through components and the like. With such a configuration, it is possible to achieve high-efficiency loosely coupled MIMO array antennas operating in the same frequency band in a portable wireless terminal.Type: GrantFiled: May 16, 2011Date of Patent: August 11, 2015Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Hiroshi Satou, Takanori Hirobe, Yoshio Koyanagi, Tomoaki Nishikido
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Patent number: 8988293Abstract: Disclosed are exemplary embodiments of multiband antenna assemblies, which generally include helical and linear radiating elements. In an exemplary embodiment, a multiband antenna assembly may generally include at least one helical radiator having a longitudinal axis. At least one linear radiator is aligned with and/or disposed at least partially along the longitudinal axis of the at least one helical radiator. The antenna assembly is resonant in at least three frequency bands.Type: GrantFiled: December 20, 2013Date of Patent: March 24, 2015Assignee: Laird Technologies, Inc.Inventor: Kean Meng Lim
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Patent number: 8803742Abstract: The dual-band MIMO antenna system includes antenna elements arranged on a printed circuit board. For the plurality of antennas on the board, the opposing antennae are arranged in mirror-image fashion. Each antenna has a first elongate vertical element connected to and extending vertically from one end of a horizontal element. A second, shorter elongate vertical element is disposed proximate an opposite end of the horizontal element and extends upward therefrom in parallel with the first elongate member. First (feed) and second (short) stubby vertical elements are disposed on the horizontal element proximate the second elongate member and extend downward from the horizontal element. A ground plane is formed on the opposite face of the printed circuit board.Type: GrantFiled: March 12, 2012Date of Patent: August 12, 2014Assignee: King Fahd University of Petroleum and MineralsInventors: Mohammad S. Sharawi, Mohammad Azam Jan
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Publication number: 20140111397Abstract: Disclosed are exemplary embodiments of multiband antenna assemblies, which generally include helical and linear radiating elements. In an exemplary embodiment, a multiband antenna assembly may generally include at least one helical radiator having a longitudinal axis. At least one linear radiator is aligned with and/or disposed at least partially along the longitudinal axis of the at least one helical radiator. The antenna assembly is resonant in at least three frequency bands.Type: ApplicationFiled: December 20, 2013Publication date: April 24, 2014Applicant: Laird Technologies, Inc.Inventor: Kean Meng Lim
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Patent number: 8681052Abstract: The specification discloses a low-profile, ultra wideband, inverted f antenna having increased bandwidth. The antenna includes a ground plane, a planar antenna element spaced from the ground plane, a first tubular element electrically connected to and extending from the ground plane toward the antenna element, and a second tubular element electrically connected to and extending from the antenna element toward the ground plane. The tubular elements physically interfit but are electrically separated. The antenna is compatible with LTE, GPS and satellite radio communications to provide a compact antenna suitable for use in automotive and other applications.Type: GrantFiled: October 4, 2011Date of Patent: March 25, 2014Assignee: Blaupunkt Antenna Systems USA, Inc.Inventors: Andreas D. Fuchs, Elias H. Ghafari
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Patent number: 8665170Abstract: An antenna assembly includes a cable assembly having at least one wire and a circuit board assembly having a ground plane and a plurality of mounting locations. The wire(s) is electrically connected to corresponding mounting locations. A plurality of antenna elements are mounted to the circuit board at corresponding mounting locations. Each antenna element has a feed finger and a ground finger, where the ground finger is electrically connected to the ground plane and the feed finger is electrically connected to the corresponding wire. Each antenna element has a first portion extending from the circuit board along a first plane and a second portion extending from the first portion along a second plane that is transverse to the first plane. Each antenna element provides hemispherical coverage and wide frequency bandwidth.Type: GrantFiled: June 30, 2008Date of Patent: March 4, 2014Assignee: Tyco Electronics CorporationInventors: Bruce Foster Bishop, Luis Cardenas
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Patent number: 8552918Abstract: Exemplary embodiments are provided of multiband high gain omnidirectional antennas. In one exemplary embodiment, an antenna generally includes first and second radiating elements. The first radiating element is configured to produce a first radiation pattern at a first operating frequency. The second radiating element is configured to produce a second radiation pattern at a second operating frequency. Each of the first and second radiating elements includes a meandering or helical portion.Type: GrantFiled: May 23, 2011Date of Patent: October 8, 2013Assignee: Laird Technologies, Inc.Inventors: Ting Hee Lee, Shanmuganathan Suganthan
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Patent number: 8537071Abstract: An antenna device is provided with a first connecting electrode, a first tunnel diode, a first antenna member and a fixed electrode. The first connecting electrode is configured to be connected to a fixed potential via a load. The first tunnel diode has a pair of electrodes. One of the electrodes of the first tunnel diode is connected to the first connecting electrode, and the other electrode of the first tunnel diode is connected to the first antenna member. The first antenna member has a conductive property and includes a first portion and a second portion. The first portion of the first antenna member is connected to the other electrode of the first tunnel diode. The fixed electrode is connected to the second portion of the first antenna member. The fixed electrode is configured to be connected to the fixed potential.Type: GrantFiled: March 23, 2010Date of Patent: September 17, 2013Assignees: Kabushiki Kaisha Toyota Chuo Kenkyusho, Toyoda Gosei Co., Ltd.Inventors: Tadashi Ito, Atsuto Okamoto, Tomoyoshi Motohiro, Tsuyoshi Nomura, Masahiro Hanazawa, Toshiyasu Ito, Takeshi Miyazaki, Yukihisa Ueno
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Patent number: 8508420Abstract: An antenna device and a wireless communication apparatus that are capable of obtaining a plurality of resonant frequencies and varying the plurality of resonant frequencies over a wide range are provided. A first antenna unit of an antenna device includes a feed electrode, a first radiation electrode, and a first frequency-variable circuit. The first frequency-variable circuit includes first and second reactance circuits each including a variable-capacitance diode. A control voltage is applied to the first frequency-variable circuit, and the resonant frequency of the first antenna unit can thus be varied. A second antenna unit includes the feed electrode, a second radiation electrode, and a second frequency-variable circuit. The second frequency-variable circuit includes first and third reactance circuits each including a variable-capacitance diode. A control voltage is applied to the second frequency-variable circuit, and the resonant frequency of the second antenna unit can thus be varied.Type: GrantFiled: January 13, 2009Date of Patent: August 13, 2013Assignee: Murata Manufacturing Co., Ltd.Inventors: Shigeyuki Fujieda, Kazunari Kawahata, Kenichi Ishizuka
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Patent number: 8421694Abstract: There is provided a composite antenna device for responding to waves in a plurality of radio frequency bands, including: a sheet of conductor plate; a first antenna provided on the sheet of conductor plate for responding to a linearly-polarized wave in at least one radio frequency band; and a second antenna provided on the sheet of conductor plate for responding to a circularly-polarized wave in a radio frequency band that is different from the at least one radio frequency band, wherein the first antenna has a ground portion, the second antenna is formed in an area in the ground portion, and each of the first antenna and the second antenna has a feeding point.Type: GrantFiled: August 30, 2010Date of Patent: April 16, 2013Assignee: Hitachi Cable, Ltd.Inventors: Naoki Iso, Haruyuki Watanabe, Morihiko Ikegaya, Tomoyuki Ogawa
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Patent number: 8274445Abstract: A subarray of a planar array antenna has a ground plane having a rear face and a front face, radiating elements, each of the radiating elements protruding forward of the front face and physically mounted to the ground plane; circuit elements electrically coupled to the radiating elements, and physically mounted to the ground plane and positioned rearward of the rear face of the ground plane; and a dielectric radome supported on the ground plane defining a continuous surface sealed to the ground plane. The continuous surface includes a forward wall positioned forward of each of the radiating elements to form an environmental seal around the radiating elements. The radome has an intermediate wall intermediate at least one pair of adjacent ones of the antenna elements.Type: GrantFiled: June 8, 2009Date of Patent: September 25, 2012Assignee: Lockheed Martin CorporationInventors: Donald L. Collinson, Blake A. Carnahan, II, Carl Coates
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Patent number: 8207898Abstract: An antenna unit and a communication apparatus are provided, which are operable with respect to wireless systems having three, or more frequencies by employing 2 sets of antenna elements, and which can realize such an antenna structure having a high freedom degree, while the antenna structure can be applied to frequency arrangements as to the plurality of wireless systems.Type: GrantFiled: January 12, 2007Date of Patent: June 26, 2012Assignee: Panasonic CorporationInventors: Yoshio Koyanagi, Kenya Nagano
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Patent number: 8159404Abstract: A helical element, which is operated in the frequency band of FM broadcast, is wound around the outer periphery of a rod-shaped support member 10. A line-shaped element 12, which is operated in the frequency band of terrestrial digital television broadcast, is disposed in a first groove 10a of a predetermined length formed on the outer periphery of the support member 10 from the lower end thereof. With this arrangement, a multi-frequency antenna 1, which is operated in the frequency band of FM broadcast and the frequency band of terrestrial digital television broadcast, can be arranged, and the entire length L of the helical element can be reduced and it can be operated in a plurality of frequency bands with the effect of the line-shaped element 12.Type: GrantFiled: October 11, 2007Date of Patent: April 17, 2012Assignee: Nippon Antena Kabushiki KaishaInventor: Masashi Wakui
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Patent number: 8154409Abstract: Method, systems, and articles of manufacture for assigning priority to antenna are disclosed. In accordance with a preferred embodiment of the invention, reader antenna (151, 152, 153) identify the location of an object by detecting a tag or other identifier associated with each object. Sensors (121, 122, 123) can be provided to provide additional information regarding the environment of the objects to their surroundings. A priority order is assigned to the reader antenna based on the location and other characteristics of the objects and/or their environment. A polling sequence for reading the reader antennae is determined according to the priority order.Type: GrantFiled: January 14, 2005Date of Patent: April 10, 2012Assignee: Sensormatic Electronics, LLCInventors: Paul B. Rasband, Donald G. Bauer, Richard J. Campero
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Patent number: 8144062Abstract: A multi-band antenna includes a grounding portion (300), a number of radiating members and a short-circuit portion (200). The short-circuit portion comprises a first short-circuit piece (210) connecting with the grounding portion and located in a first plane, a third short-circuit piece (230) located in a third plane and connecting with the radiating members, and a second short-circuit piece (220) connecting the first short-circuit piece with the third short-circuit piece and located in a second plane, with the first and third short-circuit pieces disposed on the same side of the second short-circuit piece. The radiating members comprises a first radiating member (110, 140) in the third plane and a second radiating member (120, 140) extending towards the first plane.Type: GrantFiled: November 26, 2008Date of Patent: March 27, 2012Assignee: Hon Hai Precision Ind. Co., Ltd.Inventors: Yun-Lung Ke, Chen-Ta Hung, Shu-Yean Wang, Chun-Ming Chiu
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Patent number: 8094076Abstract: A multiband antenna includes a feed portion, a radiating portion, and a ground via. The feed portion includes a first feed section and a second feed section paralleled to each other. The radiating portion includes a first radiator, a second radiator and a third radiator. The first radiator is L shaped with a free end. The second radiator is L shaped with a free end. The free ends of the second radiator and the first radiator extend toward to each other and partially overlap to define a slot therebetween. The third radiator includes a trapezoid section and a connecting section. The short portion includes a first short section and a second short section. The first short section connects the first radiator to the ground via, and the second short section connects the second radiator and the third radiator to the ground via.Type: GrantFiled: October 21, 2009Date of Patent: January 10, 2012Assignees: Ambit Microsystems (Shanghai) Ltd., Hon Hai Precision Industry Co., Ltd.Inventors: Chong Zhang, Cho-Ju Chung
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Patent number: 8059055Abstract: An antenna includes first and second radiating elements and a conductive arm. The second radiating element has opposite feeding and grounding end portions, each of which is coupled to a respective one of feeding and grounding end portions of the first radiating element. The conductive arm is coupled to the feeding end portion of the second radiating element.Type: GrantFiled: July 8, 2008Date of Patent: November 15, 2011Assignee: Quanta Computer Inc.Inventors: Tiao-Hsing Tsai, Chih-Wei Liao, Chao-Hsu Wu, Chi-Yin Fang
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Publication number: 20110221648Abstract: Exemplary embodiments are provided of multiband high gain omnidirectional antennas. In one exemplary embodiment, an antenna generally includes first and second radiating elements. The first radiating element is configured to produce a first radiation pattern at a first operating frequency. The second radiating element is configured to produce a second radiation pattern at a second operating frequency. Each of the first and second radiating elements includes a meandering or helical portion.Type: ApplicationFiled: May 23, 2011Publication date: September 15, 2011Applicant: LAIRD TECHNOLOGIES, INC.Inventors: Ting Hee Lee, Shanmuganathan Suganthan
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Patent number: 7940219Abstract: An antenna adaptable to a plurality of frequencies is comprised of a first element that is connected to a feeding point (feeding portion) for operation and a second element that is connected to a grounding point (grounding portion) in proximity to the first element to be operated by coupling feeding with the first element and is configured to be operated at either or both of a first frequency and a second frequency higher than the first frequency.Type: GrantFiled: March 20, 2006Date of Patent: May 10, 2011Assignee: Fujitsu LimitedInventors: Kouji Soekawa, Masaru Kanazawa
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Patent number: 7936314Abstract: To provide a dual polarized antenna capable of reducing correlation between antenna elements. A dual polarized antenna is constituted by a vertically polarized antenna and a horizontally polarized antenna formed on a printed circuit board and radiates two kinds of polarized waves.Type: GrantFiled: April 11, 2008Date of Patent: May 3, 2011Assignee: NEC CorporationInventors: Akio Kuramoto, Hiroyuki Yusa
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Patent number: 7928912Abstract: A multiband antenna includes a long radiating branch, a short radiating branch, a short strip, a feed point, a grounding portion, a connecting portion, a long parasitic strip, and a short parasitic strip. The feed point, the long radiating branch, the short radiating branch, and the short strip are in a first plane. The grounding portion connects to the short strip. The connecting portion connects the long radiating branch, the short radiating branch, and the short strip. The long radiating branch, the short strip, and the connecting portion form a first inverted-L shaped antenna structure. The short radiating branch, the short strip, and the connecting portion form a second inverted-L shaped antenna structure. The long parasitic strip and the short parasitic strip are in a second plane and respectively connected to the grounding portion. The first plane is parallel to the second plane.Type: GrantFiled: July 11, 2008Date of Patent: April 19, 2011Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.Inventors: Wen-Hua Chen, Xin Wang, Zheng-He Feng
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Patent number: 7920094Abstract: In an antenna structure having a plurality of serially fed patch elements, at least one of the patch elements has a slot coupling to the continuation of the feed line for influencing the radiation of this patch element.Type: GrantFiled: June 17, 2005Date of Patent: April 5, 2011Assignee: Robert Bosch GmbHInventor: Thomas Hansen
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Patent number: 7893880Abstract: Disclosed is an antenna for a radar device which is available for angle measuring in a wide angle for both of the right and the left directions from a travelling direction of a vehicle. SOLUTION: An antenna for radar device 100 comprises an antenna unit 110 as a combination of one of antenna elements 102 and one of second bottom boards 103, wherein a plurality thereof are arrayed on a first bottom board 101. The antenna element 102 is bent as L-shaped, one end thereof is opened, another end thereof penetrates the first bottom board 101 as noncontact therewith, and is connected to a transmission line 104 with further penetrating a line substrate 105.Type: GrantFiled: September 30, 2008Date of Patent: February 22, 2011Assignee: Furukawa Electric Co., Ltd.Inventors: Nobutake Orime, Naotaka Uchino, Yoichi Iso
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Patent number: 7884724Abstract: An adjustable radio frequency data communications device has a monolithic semiconductor integrated circuit with integrated circuitry, interrogation receiving circuitry provided on the monolithic integrated circuit forming at least part of the integrated circuitry and configured to receive an interrogation signal from the interrogator unit, an antenna electrically coupled to the interrogation receiving circuitry and configured to communicate with the remote interrogator unit, a power source electrically coupled to the integrated circuitry and configured to generate operating power for the communications device, and at least one of the antenna and the interrogation receiving circuitry having reconfigurable electrical characteristics, the electrical characteristics being reconfigurable to selectively tune the at least one of the antenna and the interrogation receiving circuitry within a range of tuned and detuned states to realize a desired receiver sensitivity of the communications device.Type: GrantFiled: December 1, 2006Date of Patent: February 8, 2011Assignee: Round Rock Research, LLCInventors: Mark E. Tuttle, John R. Tuttle
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Patent number: 7830326Abstract: Provided herewith a multi-band antenna comprising a grounding element lying in a first plane and comprising two longitudinal sides, a radiating element spaced apart from the grounding element and comprising a first radiating arm having a first length and a second radiating arm having a second length being about equal to the first length, a connecting element lying in a second plane and electrically connecting the grounding element and the radiating element; a feeding line comprising an inner conductor for feeding signal and an outer conductor electrically connecting to the grounding element; and a coupling radiating element extending vertically from the grounding element and comprising a first radiating portion lying in a third plane and a second radiating portion being perpendicular to the third plane.Type: GrantFiled: May 7, 2008Date of Patent: November 9, 2010Assignee: Hon Hai Precision Ind. Co., Ltd.Inventors: Chen-Ta Hung, Shu-Yean Wang, Yao-Shien Huang
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Patent number: 7808442Abstract: The present invention discloses a multi-band antenna. The antenna includes a ground portion, a parasitic unit connecting with the ground portion and operated at a first frequency band, a first radiation portion having a feeding point and operated at a second frequency band, a second radiation portion connecting with the feeding point and operated at a third frequency band. The first radiation portion and the second radiation portion are located between the parasitic unit and the ground portion.Type: GrantFiled: May 30, 2008Date of Patent: October 5, 2010Assignee: WISTRON NeWeb Corp.Inventors: Yi-Hung Chiu, Chia-Tien Li
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Patent number: 7675468Abstract: A communication device is provided, which includes a circuit board having first and second sides that are substantially straight in the area in which the first and second sides meet to form a corner at an angle of less than 180°; a ground plane extending between the first and the second sides, except in a particular area of the corner of the circuit board; a radiating antenna element disposed in the particular area; and an electrical connection to feed the radiating antenna element across an interface between the ground plane and the particular area.Type: GrantFiled: October 27, 2005Date of Patent: March 9, 2010Assignee: Sony Ericsson Mobile Communications ABInventor: Zhinong Ying
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Publication number: 20090189824Abstract: A portable wireless device in which, in various states where the user uses the portable wireless device, the correlation coefficient between antennas can be reduced, and high-speed and high-capacity communication can be ensured is provided. In a portable wireless device 10, from the upper end of a case on the side opposed to a side of a display portion 37 of a case 11, a first antenna element 12 which is slightly shorter by 0.05 wavelengths than the half wavelength is placed, and a second antenna element 13 in which the element length is slightly shorter by 0.05 wavelengths than the half wavelength is placed at a predetermined gap in the width direction in parallel to the first antenna element 12. The first antenna element 12 is connected to a first shared transmitting/receiving unit 23, and the second antenna element 13 is connected to a second shared transmitting/receiving unit 24.Type: ApplicationFiled: October 12, 2005Publication date: July 30, 2009Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.Inventors: Tomoaki Nishikido, Yutaka Saito, Yoshio Koyanagi
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Patent number: 7312756Abstract: An antenna comprises a ground element, a first transmission element, a feed element, a second transmission element and a third transmission element. The first transmission element is electrically connected to the ground element, wherein the first transmission element comprises at least one coupling portion, a first side and a second side. The feed element corresponds to the coupling portion. The second transmission element corresponds to the first side and is electrically connected to the ground element. The third transmission element corresponds to the second side and is electrically connected to the ground element. When a first wireless signal is transmitted, the feed element couples to the first transmission element to transmit the first wireless signal. When a second wireless signal is transmitted, the feed element couples to the first transmission element, and the second and third transmission elements couple to the first transmission element to transmit the second wireless signal.Type: GrantFiled: January 9, 2006Date of Patent: December 25, 2007Assignee: Wistron NeWeb Corp.Inventors: Feng-Chi Eddie Tsai, Kuan-Hsueh Tseng
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Patent number: 7180463Abstract: A dual-band antenna includes a ground point, a feeding element, a first radiation element, a second radiation element, and an impedance element. The ground point is electronically connected to the first radiation element and the second radiation element. The first radiation element is electronically connected to the feeding element via a first feeding point, and the second radiation element is electronically connected to the feeding element via a second feeding point. The first radiation element includes a head and a neck. A width of the neck decreases from the head toward the first feeding point. The impedance element extends from the neck and through the first feeding point. The dual-band antenna further includes a support element that is connected to the ground point.Type: GrantFiled: September 30, 2004Date of Patent: February 20, 2007Assignee: Hon Hai Precision Industry Co., Ltd.Inventor: Cho-Ju Chung
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Patent number: 7084830Abstract: A two-port antenna structure with four arms is provided on a printed circuit board.Type: GrantFiled: March 2, 2005Date of Patent: August 1, 2006Assignee: Intel CorporationInventor: Seong-Youp Suh
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Publication number: 20040104859Abstract: A cavity-backed wideband slimline flat panel antenna array for providing a steerable beam includes an array of slot antennas, each of which fed by its own individual dipole radiator, with the wide bandwidth being due to the matching impedances of the slot antenna and dipole radiator across the entire frequency band. In one embodiment an upstanding printed circuit balun feed is connected to each dipole. The dipole elements are located to either side of a slot and are arrayed on the underneath side of a dielectric layer under the substrate into which the slots are formed, with the dipole elements directly fed by individual upstanding printed circuit baluns which are arrayed beneath the individual slots antennas. The use of the dipole elements, in addition to providing a wider operational bandwidth, also permits feeding each of the slots without having to use striplines which would have to cross each other and therefore not work.Type: ApplicationFiled: December 31, 2002Publication date: June 3, 2004Inventor: Zane Lo
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Patent number: 6727858Abstract: A circularly polarized wave antenna is constructed such that the circularly polarized wave antenna has four flat plate-shaped dielectrics having the substantially same thickness vertically provided on a printed substrate and arranged in a square-cylinder shape as a whole, and four radiation conductors provided, on each outer wall surface of the flat plate-shaped dielectrics, inclined in a fixed direction, such that a lower end of each of the radiation conductors is electrically connected to the printed substrate and such that electric power is fed to the four radiation conductors in phase.Type: GrantFiled: September 17, 2002Date of Patent: April 27, 2004Assignee: Alps Electric Co., Ltd.Inventor: Kouta Iijima
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Patent number: 6707433Abstract: A plurality of concentric circle array antennas each having a different radius are disposed on an identical plane, and a plurality of element antennas are arranged circumferentially in each of the concentric circle array antennas. The plurality of concentric circle array antennas are arranged at regular intervals d in most part thereof, and the concentric circle array antennas corresponding to a remaining part of the plurality of concentric circle array antennas are arranged at intervals d±0.4 to 0.6d. The radii of the part of plural concentric circles change by ±(0.4 to 0.6)d, so that it is possible to reduce a wide-angle side lobe.Type: GrantFiled: October 25, 2002Date of Patent: March 16, 2004Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Masataka Ohtsuka, Isamu Chiba, Shuji Urasaki
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Patent number: 6600455Abstract: An M-shaped antenna apparatus includes at least two M-shaped antenna elements, a grounding conductor, and a feeding portion. At least two M-shaped antenna elements includes first and second M-shaped antenna elements respectively having first and second resonance frequencies. The first M-shaped antenna element includes a first transmission conductor; a first radiation conductor connected between one end of the first transmission conductor and the grounding conductor; a second radiation conductor connected between a middle portion of the first transmission conductor and the feeding portion; and a third radiation conductor connected between the other end of the first transmission conductor and the grounding conductor. The second M-shaped antenna element includes a second transmission conductor, a fourth radiation conductor, a fifth radiation conductor, and a sixth radiation conductor in a manner similar to that of the first M-shaped antenna element.Type: GrantFiled: March 22, 2002Date of Patent: July 29, 2003Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Atsushi Yamamoto, Hiroshi Iwai, Koichi Ogawa
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Patent number: 6542128Abstract: In a first aspect, an antenna for use at a particular frequency or in a frequency band including said particular frequency, comprises a conductive ground plane having a length in at least one dimension of about a quarter wavelength at said particular frequency or more, and first and second crossed conductive driven elements arrayed over at least a portion of said ground plane, wherein the elements in the region in which they cross are spaced apart so as to avoid electrical contact and any substantial capacitive coupling to each other, each element is about a quarter wavelength electrically at said particular frequency, each element has at least one end portion generally perpendicular to said ground plane and at least one further portion, said elements and ground plane generally defining a volume, at least one end of each driven element is electrically coupled to said ground plane, and the elements are fed ninety degrees out of phase with respect to each other.Type: GrantFiled: February 16, 2001Date of Patent: April 1, 2003Assignee: Tyco Electronics Logistics AGInventors: Gregory F. Johnson, Arthur O. Snow
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Patent number: 6480170Abstract: A patch antenna comprises a radiating element and a ground plane with a dielectric therebetween, one or both of the radiating element and the ground plane comprising means defining current paths in a pattern which approximates to a preferred excitation mode of a patch radiating element of uniform and continuous section.Type: GrantFiled: March 19, 2001Date of Patent: November 12, 2002Assignee: Harada Industries (Europe) LimitedInventors: Richard Jonathan Langley, Gisela Clasen
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Publication number: 20010022559Abstract: An antenna includes a radiation conductor unit constructed with a plurality of radiation conductors having different lengths which extend in parallel to each other from an electricity-supplying conductor and a grounded conductor unit which opposes said plurality of radiation conductor in an approximately parallel manner with a predetermined distance therebetween. The radiation conductor unit and the grounded conductor unit are contained in an insulating casing constructed by a pair of cases which is fixed to each other. The casing is provided with a plurality of projections for positioning the radiation conductor unit and the grounded conductor unit.Type: ApplicationFiled: March 1, 2001Publication date: September 20, 2001Applicant: Alps Electrtic Co., Ltd.Inventors: Toshiyuki Takahashi, Tomoki Ikeda
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Patent number: 6239751Abstract: A low profile or very low profile antenna having a finely tunable frequency response is provided. The antenna is easily tuned to have a precise frequency response while its protective radome is in place. The antenna generally includes a first antenna element, a second antenna element, a ground plane, and a tuning mechanism. The tuning mechanism may be accessed while the radome of the antenna is in place. The antenna is particularly well-suited for use in shipping applications, where a very low antenna profile is desirable.Type: GrantFiled: September 14, 1999Date of Patent: May 29, 2001Assignee: Ball Aerospace & Technologies Corp.Inventors: Michael W. McRae, Travis Horne
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Patent number: 6111550Abstract: An endfire monopole array in a low cross section, low profile package with the area used being vertical or tube-like. The array is aerodynamically shaped on one or more sides in order to minimize wind resistance. The antenna array includes an RF transparent housing having a tapered end portion which is substantially "V" shaped, a first plurality of parallel endfire monopole antenna elements secured to a stripline or microstrip within the housing, each antenna element thereof extending in a first direction and a second plurality of parallel endfire monopole antenna elements secured to a stripline or microstrip within the housing, each antenna elements of the second plurality extending in the first direction, the first plurality being spaced from the second plurality in the first direction. An energy feeding structure is coupled to the antenna elements, with a dielectric layer disposed over that structure and a ground plane disposed over the dielectric layer.Type: GrantFiled: September 26, 1997Date of Patent: August 29, 2000Assignee: Texas Instruments IncorporatedInventors: Darrell W. Miller, Joseph E. Wheeler, III, Paul C. Gilliland, Leslie D. Clements
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Patent number: 6054955Abstract: An antenna arrangement of sufficiently small size to be accommodated in the housing of a portable communications device includes a pair of spaced folded monopole antennas. Each antenna includes a first printed circuit board having a conducting surface that forms a ground plane. Mounted on the first circuit board is a second printed circuit board having a right-angled strip of conducting material, which forms a folded monopole radiating element. The folding of the monopole reduces its height, to thereby enable it to fit into small casings and the like. To compensate for the effects of the folded monopole on the electrical match, frequency bandwidth and electromagnetic fields, a shunt inductance is introduced between the monopole and the ground plane. The antennas are mounted within cavities that can be lined or coated with metallic material, to improve the radiation patterns of the antennas and isolate them from the electronic components of the communications system.Type: GrantFiled: August 23, 1993Date of Patent: April 25, 2000Assignee: Apple Computer, Inc.Inventors: Herbert Schlegel, Jr., Timothy J. Blaney, Charles M. Difronzo
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Patent number: 5828346Abstract: A fading phenomenon is eliminated by integrally providing two monopole antennas on a printed circuit board, alternately feeding a high frequency signal to the two monopole antennas by a switching device, and differently forming distances and patterns of the two monopole antennas whereby making a diversity.Type: GrantFiled: August 2, 1996Date of Patent: October 27, 1998Assignee: Samsung Electro-Mechanics Co., Ltd.Inventor: Tah Joon Park
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Patent number: 5757333Abstract: A communications antenna structure, e.g. for a cellular radio base station comprises first and second bent folded monopole planar antenna elements mounted on a ground plane and disposed generally perpendicular to thereto. The antenna elements are mutually spaced from each other and are disposed with their respective planes at an angle to each other whereby to provide both polarisation diversity and space diversity of the antenna structure.Type: GrantFiled: March 31, 1997Date of Patent: May 26, 1998Assignee: Northern Telecom LimitedInventor: Dean Kitchener