Abstract: A novel geometry, the geometry of Space-Filling Curves (SFC) is defined in the present invention and it is used to shape a part of an antenna. By means of this novel technique, the size of the antenna can be reduced with respect to prior art, or alternatively, given a fixed size the antenna can operate at a lower frequency with respect to a conventional antenna of the same size.

Abstract: A chemical liquid injector comprises liquid syringe 200 and a chemical liquid injector. Liquid syringe 200 has cylinder member 210, a piston member and RFID tag 230 put on an outer circumference of cylinder member 210. The chemical liquid injector has cylinder holding mechanism 120 for holding cylinder member 210, a piston driving mechanism for driving the piston member and an RFID reader. The RFID reader has reader antennas 132L, 132R placed opposite to a tag antenna so as to be able to receive data from RFID tag 230 with cylinder member 210 is appropriately held by the cylinder holding mechanism. The piston driving mechanism is permitted to operate only when the RFID reader receives data from RFID tag 230.

Abstract: A multiband antenna includes a feed unit, a first transceiving unit, a second transceiving unit, and a resonance unit. The first transceiving unit and the second transceiving unit cooperatively form a loop. When feed signals are input to the feed unit, the feed signals are respectively transmitted through the first transceiving unit and the second transceiving unit to enable the first transceiving unit and the second transceiving unit to respectively receive and send wireless signals of different frequencies, and the resonance unit is driven to resonate and cooperate with the first transceiving unit and the second transceiving unit to respectively form additional antenna members, such that the multiband antenna is capable of receiving and sending wireless signals in more than two frequency bands.

Abstract: A wireless-IC-device main component is disposed on a surface opposite to a surface for receiving signals from a reader/writer. The wireless-IC-device main component includes an insulating substrate, which is provided with a loop electrode and an electromagnetically coupled module coupled to the loop electrode. A signal from the reader/writer causes an eddy current to flow across a conductor principal plane of a metal article. The eddy current causes a magnetic field to be generated in a direction perpendicular or substantially perpendicular to the conductor principal plane of the metal article. Then, the loop electrode is coupled to the magnetic field. Thus, the wireless-IC-device main component functions as an RFID tag even for signals from the principal plane opposite to the wireless-IC-device main component. Thus, it is possible to reduce the cost of manufacturing a metal article, and to provide a wireless IC device using the metal article as a radiator.

Abstract: An antenna unit includes an antenna formed on a magnetic sheet. A transmission circuit includes an inductor, a matching capacitor, and the antenna connected in series, and a reception circuit includes the antenna, the matching capacitor, a resistor, and a capacitor connected in series. The antenna is formed as one turn, and the size of the antenna and the resistor involves a predetermined relationship.

Abstract: It is an object to provide an antenna unit capable of operating in response to a plurality of types of counterpart equipment that operate at different resonance frequencies while enhancing its passing characteristic, as well as providing a portable wireless device equipped with the antenna unit. An antenna unit that performs wireless communication originating from induction coupling includes a loop antenna coiled by a conductor in a planar shape; and a metallic plate that is positioned while displaced from the loop antenna in one direction and that partially encloses a circumference of the loop antenna when viewed from the direction, wherein each of ends of the metallic plate overlaps a portion of the loop antenna when viewed from the direction.

Abstract: The disclosure provides an antenna device and communications terminal including such an antenna device. The antenna device includes a coil including a conductor wound around a plate-shaped magnetic core. A flat conductor is positioned adjacent to the coil, and the coil is positioned such that it is closer than the flat conductor to an antenna of a communication partner positioned near the antenna device. The coil conductor includes a first conductor portion adjacent to a first main surface of the magnetic core and a second conductor portion adjacent to a second main surface thereof. A circuit substrate includes a ground electrode formation area and a ground electrode non-formation area. The antenna coil is mounted on the ground electrode non-formation area of the circuit substrate with the first main surface of the magnetic core facing the circuit substrate.

Abstract: A magnetic and/or magneto-electric antenna that has a plurality of conducting loops where each individual loop can be resonated at a frequency that is offset from the frequency of the other loops to provide a composite band-pass response that is broader than that of the individual loops. A receiving circuit acts to sum the signals from each of the antennas to provide a combined frequency response that is broader in bandwidth than any of the individual loops. Similarly a combination of multiple transmitter loops where a transmit circuit drives a common transmit waveform to each of the combined antennas to provide a combined transmitter frequency response that is broader in bandwidth than any of the individual loops.

Abstract: A system and method for energy transfer between a transmitting unit and a receiving unit, the transmitting unit having a transmitting antenna circuit having a first resonant frequency and a high quality factor.

Abstract: An antenna apparatus is provided with a first antenna element, a second antenna element, a first ground element, a first ground plane and a second ground plane each formed by a conductive pattern. The first antenna element and the second antenna element are electrically connected by a first through-hole, and also form a first capacitive coupling portion in which they partially overlap across a substrate and are capacitively coupled. Such a configuration enables the antenna apparatus to be realized at low cost, since an antenna can be formed with only a substrate and conductive patterns, without requiring additional elements such as sheet metal. The antenna apparatus also can be reduced in profile and size, since only the conductive patterns are formed on a first surface and a second surface of the substrate, and there are no members that project significantly from the plane of the substrate.

Abstract: A portal antenna (10) particularly suited for enabling low frequency RFID devices carried by animals to be read when animals are proceeding through a stock race or the like. The portal antenna includes a portal structure (11) through which an animal can pass and about which is wound at least one coil (18/19) of antenna conductor. At least one elongate radiator element (21) preferably projects to at least one side of the portal structure (11). Preferably the radiator(s) (21) is/are of ferrous/magnetically conductive metal. The radiator(s) can form a separate structure or be part of the wall structure of a stock race.

Abstract: An antenna apparatus is provided with an antenna cover formed so as to widen toward the rear and to rise in a streamlined shape toward the rear along the longitudinal central axis, an antenna base to which the antenna cover is attached in a watertight fashion, and an antenna section accommodated in a space formed by the antenna cover and the antenna base. The antenna section is set upright on the antenna base, and has a configuration in which an antenna wire of predetermined length corresponding to a frequency band of medium frequency wave to very high frequency wave is wound vertically at a predetermined inter-wire pitch around a winding member accommodated in a space corresponding to the raised section of the antenna cover.

Abstract: An antenna interacting with a signal having a frequency is provided. The antenna includes a radiation element having a hollow portion having an angle corner related to the frequency, and including a first inner edge; a second inner edge, wherein the angle corner is formed by the first inner edge and the second inner edge; a third inner edge connected to the second inner edge; a first outer edge; and a second outer edge, wherein the first outer edge and the second outer edge form a first included angle.

Abstract: A communication apparatus includes an antenna configured to generate a magnetic field corresponding to a signal of a first communication method; and a communication unit configured to perform communication via a communication medium by transmitting/receiving a signal of a second communication method by using a potential difference between the communication unit and a predetermined reference point, the communication unit including a transparent conductive film. The antenna and the communication unit are integrated with each other.

Abstract: An antenna, including a dielectric carrier having a bounding surface, and a conductive monopole resonant at a first frequency, the monopole having at least one conducting section mounted on the bounding surface. The antenna further includes a labyrinthine conductive coupling element mounted on the bounding surface so as to encompass the dielectric carrier. The coupling element is located with respect to the conductive monopole so as to transfer from the conductive monopole a second frequency lower than the first frequency.

Abstract: An antenna generating an electromagnetic field for an electromagnetic transponder and a terminal provided with such an antenna. The antenna comprises a first inductive element designed to be connected to two terminals employing an energizing voltage, and a parallel resonant circuit coupled with the first inductive element.

Abstract: An antenna apparatus is disclosed that includes a feeding portion; a looped antenna element connected to the feeding portion; and a resistor inserted into the looped antenna element.

Abstract: A coupling device is formed by a continuous conductive path having a central section and two extremity sections, the central section forming at least a small spiral for inductive coupling with the transponder device, the extremities sections forming each one large spiral for inductive coupling with the reader device, wherein the small spiral shows a larger pitch than the ones of the large spirals, and wherein the two extremities of the continuous path are loose such that the coupling device forms an open circuit. The pitches of the large spirals are chosen such as that the interturn stray capacitances is important and that the large spirals have mainly a capacitive behavior. And the pitch of the small spiral is chosen such as that the interturn stray capacitances are negligible, and that the small spiral has mainly an inductive behavior.

Abstract: A loop directional coupler having a first waveguide, particularly a hollow, planar, or a coaxial conductor in the form of a half loop antenna having first and second antenna branches for the contact-free extraction of an incoming signal “a” on a second waveguide and a returning signal “b” on the second waveguide. The first antenna branch is connected to a first input of a first network and the second antenna branch is connected to a second input of the first network, the first network having a first power splitter at the first input and a second power splitter at the second input for dividing the signal present at each antenna branch, the first network having a first adder adding the signals of the first and second power splitters to each other, and a first subtractor subtracting the signals of the first and second power splitters from each other.

Abstract: According to one embodiment, an electronic apparatus includes a housing, a first board contained in the housing, a second board contained in the housing on the inner side of the first board, a first antenna part, and a second antenna part. The first antenna part includes a loop antenna provided on the first board, and configured to communicate with a communication module opposed to the loop antenna. The second antenna part includes an element part provided in an area surrounded by the loop antenna, and positioned in the same plane as the loop antenna, and a ground part provided on the second board, and configured to communicate with a communication module opposed to the element part.

Abstract: A high frequency wave glass antenna for an automobile includes an antenna conductor formed in a loop shape and disposed in or an automobile window glass sheet, the antenna conductor having a discontinuity and feeding portions at both ends of the discontinuity or in the vicinity of said both ends, the discontinuity being formed of a portion of the loop shape cut by a length. The antenna conductor includes a detour in a portion of the loop shape, the detour being formed of a single or a plurality of detour elements, the detour being disposed in a position, which satisfies that a rate of a distance from a center of the discontinuity of the original loop shape to a center of the detour of the original loop shape with respect to a length of an inner peripheral edge or an outer peripheral edge of the original loop shape ranges from 0.18 to 0.4.

Abstract: Aspects and embodiments of the present invention provide a system for obtaining, processing and managing data from an implanted sensor. In some embodiments, a patient or other persons can use a flexible antenna to obtain data from the implanted sensor. The flexible antenna includes at least one transmit loop and at least one receive loop. The transmit loop is adapted to propagate energizing signals to the implanted sensor. The receive loop is adapted to detect a response signal from the implanted sensor. The transmit loop includes a capacitor formed by a discontinuous area. The capacitor is adapted to allow the loop to be tuned. The flexible antenna can communicate with a patient device that collects the data from the implanted sensor, creates a data file and transmits the data file to a remote server over a network. A physician or other authorized person may access the remote server using an access device.

Abstract: A feed radiation electrode functioning as an antenna is capable of performing radio communication in two different frequency bands, a lower frequency band and a higher frequency band, defined in advance for radio communication. The feed radiation electrode has a loop shape, and a feeding end Q and a feeding-end adjacent portion P are connected with a shortcut path, which is provided by a stub, therebetween. Thus, the feed radiation electrode is capable of performing radio communication in the lower frequency band for radio communication in accordance with a resonant operation based on a current flowing through a channel IL and performing radio communication in the higher frequency band for radio communication in accordance with a resonant operation based on currents flowing through channels IH and IH?.

Abstract: An RFID tag includes an antenna and a chip, and the antenna includes a first polygonal dielectric material, first and second microstrip lines partially formed in the first dielectric material, a second polygonal dielectric material stacked on the first dielectric material, and a third microstrip line partially formed in the second dielectric material. According to the present invention, the RFID tag can efficiently receive electromagnetic waves to thereby maximize a readable range.

Abstract: A protective circuit board including a layered insulating substrate, a printed circuit pattern disposed within the insulating substrate, and a loop antenna electrically connected to the printed circuit pattern. Ends of the loop antenna can be inserted into the insulating substrate and connected to the printed circuit pattern. Portions of the printed circuit pattern may extend out of the insulating substrate, and may be connected to the loop antenna. The protective circuit board can be included in a secondary battery pack comprising a secondary battery. The loop antenna can be adhered to the secondary battery.

Abstract: There is provided with an antenna device includes; a first antenna element which is either a spiral antenna element or a loop-like antenna element; and a first feed point provided at a first end of the first antenna element, the first end being an outer end of the spiral antenna element or an one end of the loop-like antenna element, wherein a length from an second end of the first antenna element to the first end of the first antenna element along the first antenna element is about one half wavelength of operating frequency, the second end being an inner end of the spiral antenna element or the other end of the loop-like antenna element.

Abstract: A antenna is described including a first frame having a first loop antenna element disposed thereon; a second frame having a second loop antenna element disposed thereon, the second frame disposed perpendicular to the first frame in an operational mode and disposed parallel to the first frame when in a stored mode; and a third frame having a third loop antenna element disposed thereon, the third frame disposed perpendicular to the first and second frame in an operational mode and disposed parallel to the first and second frame when in a stored mode.

Abstract: A loop antenna is provided. The loop antenna includes: a substrate; an outer pattern including at least one loop on a surface of the substrate; and an inner pattern in an inner region of the at least one loop of the outer pattern, an end of the inner pattern being connected to an end of the outer pattern, wherein the inner pattern is configured so that an electric current flows in the inner pattern in a direction opposite to a direction in which the electric current flows in the outer pattern. Accordingly, an H-Field characteristic of the loop antenna can be enhanced, thereby allowing the loop antenna to have a decreased size and an improved performance.

Abstract: An antenna device includes an enclosure defining a receiving compartment and having a back forming a mounting seat for mounting to a fixture and an end forming a connector for connection with a coaxial cable. A reflection case, which is received in the enclosure, includes reflection plates set around the case and has a bottom stamped to form partially cut tabs that are bent upward by an angle of approximately 90 degrees. The diamond-shaped antenna is composed of two quadrilateral antenna boards received in the reflection case and fixed to the bent tabs and has a central portion to which a waveguide is coupled for connection with the connector of the enclosure through a coaxial cable. The enclosure is closed by a cover plate to protect the diamond-shaped antenna from direct exposure to severe weather.

Abstract: A near field apparatus comprises a Radio Frequency (RF) coil including at least one of a shorting bridge from a first point to a second point along an electrical path of the RF coil and/or a discontinuity in the electrical path of the RF coil.

Abstract: Antenna assembly having an electrically or virtually extended ground plane, adapted for use in a mobile communications device, for example. The antenna assembly comprises at least one radiation element having an operating frequency and a ground plane coupled to the radiation element. At least one conductive member is electrically coupled to the ground plane at one or more connection points such that the conductive member forms a loop with the ground plane having a minimum distance therefrom that is less than a predetermined fraction of one wavelength of the operating frequency.

Abstract: The present invention relates to a radiofrequency device (1) comprising: at least one sheet (2) of a substrate, and at least one wire booster aerial (3), formed with an electrically insulated conductor wire, comprising at least one turn, and having two ends connected to each other electrically in a connection zone (10).

Abstract: A protective circuit module including a layered insulating substrate, a printed circuit pattern disposed within the insulating substrate, and a loop antenna electrically connected to the printed circuit pattern. Ends of the loop antenna can be inserted into the insulating substrate and connected to the printed circuit pattern. Portions of the printed circuit pattern may extend out of the insulating substrate, and may be connected to the loop antenna. The protective circuit module can be included in a secondary battery pack comprising a secondary battery. The loop antenna can be adhered to the secondary battery.

Abstract: The semiconductor memory module incorporating antenna includes a wiring board (11) having a connection terminal (17) connected with a control semiconductor element (16) and arranged at a position exposed to the surface of an outer case (15), and a terminal electrode (18) for antenna connection connected with the control semiconductor element (16) and arranged in the outer case (15); a semiconductor storage element (12) mounted on one side of the wiring board (11); and a loop-like antenna (13) and an antenna terminal electrode (20) formed on the other side of the wiring board (11) along the outer peripheral thereof, the wiring board (11) includes at least one magnetic body layer (14) and the terminal electrode (18) for antenna connection is connected with the antenna terminal electrode (20).

Abstract: An antenna configuration is described for high frequency (HF) or very high frequency (VHF) radars contained in a single vertical post. The radar may include a vertical dipole or monopole transmitting antenna collocated with a three-element receive antenna. The three antennas including two crossed loops and a vertical element are used in a direction-finding (DF) mode. Isolation between the three antennas produces high quality patterns useful for determining target bearings in DF mode. The single vertical post is sufficiently rigid mechanically that it may be installed along a coast without guy wires.

Abstract: The present invention aims at providing an antenna that exhibits superior communication performance within a communicable area because an air field within the communicable area is reduced while the communicable area is being expanded, and also providing a portable terminal using the same. In order to accomplish the objective, the antenna of the present invention includes the followings; namely, a loop antenna having an aperture; a metallic body that opposes the loop antenna and that is electrically insulated from the loop antenna; and a notch that is provided in the metallic body and that is coupled with a periphery of the metallic body, wherein at least a portion of the loop antenna opposes the metallic body, and at least a portion of the notch is covered with the aperture.

Abstract: An antenna structure for a wireless communication device including a substrate having a first surface that supports an electronic component and a second surface opposite to the first surface. The antenna structure includes a first surface pattern formed on the first surface of the substrate. A second surface pattern is formed on the second surface of the substrate. The second surface pattern is at least partially separated from the first surface pattern in a direction perpendicular to a thicknesswise direction of the substrate.

Abstract: An REID antenna assembly configured to be energized with a carrier signal is disclosed. The REID antenna assembly includes an inductive component including a loop antenna assembly, at least one capacitive component coupled to the inductive component, and an eddy current trap positioned a predetermined distance from the loop antenna assembly.

Abstract: A system and method for fabricating a mandrel wound antenna are provided. The method includes securing a first end of a wire to a first portion of a mandrel tool, where the mandrel tool includes a faceplate supporting a plurality of posts, and the posts arranged and disposed to define non-overlapping circumferential patterns. The method also includes wrapping the wire around outer peripheries of the plurality of posts to form non-overlapping wire coils around the plurality of circumferential patterns to provide an antenna. The method further includes securing a second end of the wire to a second portion of the mandrel tool, cutting the wire in proximity to the second end, attaching the antenna to a substrate separate from the faceplate, and detaching the antenna from the faceplate.

Abstract: An embodiment of an electronic communications device, including: a body of semiconductor material defining at least one integrated electronic circuit and having a top surface; an electromagnetic shield; a radiant element; and a capacitive element formed by a first electrode and a second electrode, the radiant element being set on the top surface and being ohmically coupled to the first electrode and the second electrode by means of a first connection element and a second connection element, respectively, the electromagnetic shield being set between the radiant element and the top surface and forming at least the second electrode.

Abstract: A dielectric antenna component (200) suitable for smallsized radio devices and an antenna based on such an antenna component. A substrate with relatively high permittivity for a radiating conductor is used in the antenna for reducing the size of the antenna. The substrate (210) is elongated, and the radiating conductive coating (220) constitutes a loop circulating via its ends. The width of one long side (221) of the loop is at most half of the width of the other long side (222). The bandwidth of a very small-sized antenna can be made large, because the phases of the electromagnetic waves in the radiator branches are nearly equal. For the same reason the efficiency of the antenna can be made relatively good in spite of the dielectric substrate.

Abstract: A multiple antenna reading system suitable for use with contactless transaction devices, the system including at least one reader, at least first and second antennas having at least some inductive coupling therebetween and being coupled to the at least one reader and antenna function disabling circuitry automatically operative upon activation of at least a first one of the at least first and second antennas to disable antenna function of at least a second one of the at least first and second antennas.

Abstract: An improved magnetically coupling near-field RFID antenna is embodied as a magnetic H-field coupler, and the near-field RFID antenna is embodied as a looped and/or frame-shaped antenna. The looped and/or frame-shaped antenna comprises a looped or frame-shaped strip conductor. The strip conductor is arranged set apart from a ground surface parallel thereto. A dielectric is interposed. The start and the end of the strip conductor end close to each other forms a gap or spacing. The start of the strip conductor is fed to ground. The end of the strip conductor is terminated by a terminating resistor. The terminating resistor is connected between the end of the strip conductor and a ground surface.

Abstract: Hearing aid or audio device having a behind the ear part adapted to rest behind an earlobe of a user and a speaker unit comprising a speaker, whereby the speaker unit is adapted for insertion into the ear of a user, and whereby electric leads are provided between the speaker unit and the behind the ear part, said leads having a connection part opposite the speaker unit for connection with a corresponding socket in the behind the ear part, wherein the exterior and visible parts of the behind the ear part are defined by a generally U-shaped shell element, a battery drawer and a microphone cover plate characterized in that all further inside parts of the behind the ear part are interconnected to form a single sub-assembly and in that said sub-assembly is releasably coupled to the U-shaped shell element between two upright walls thereof by latch-locks provided to interact between the microphone cover plate and the upright wall elements

Abstract: An object of the present invention is providing a semiconductor device that is capable of improving the reliability of a semiconductor element and enhancing the mechanical strength without suppressing the scale of a circuit. The semiconductor device includes an integrated circuit sandwiched between first and second sealing films, an antenna electrically connected to the integrated circuit, the first sealing film sandwiched between a substrate and the integrated circuit, which includes a plurality of first insulating films and at least one second insulating film sandwiched therebetween, the second sealing film including a plurality of third insulating films and at least one fourth insulating film sandwiched therebetween. The second insulating film has lower stress than the first insulting film and the fourth insulating film has lower stress than the third insulating film. The first and third insulating films are inorganic insulating films.

Abstract: In an antenna coil including a first magnetic core, a second magnetic core, and a flexible board, coil conductors are provided on a surface of the flexible board. By winding the flexible board around the first magnetic core and the second magnetic core, a first coil portion is disposed around the first magnetic core, and a second coil portion is disposed around the second magnetic core. The winding direction of the second coil portion is opposite to that of the first coil portion. The first coil portion and the second coil portion are connected to define one coil as a whole.

Abstract: A planar antenna device (AD) for a TV receiver (R) comprises i) a loop antenna (LA) comprising first (E1) and second (E2) ends spaced one from the other, ii) a tuning means (TM) connected to the first (E1) and second (E2) ends of the loop antenna (LA) and arranged to control the frequency of the VHF TV signals this loop antenna (LA) is able to receive from command signals, iii) a first ground plane (GP1) cooperating with the loop antenna (LA) in order to act as a UHF monopole in receiving TV signals with UHF frequencies, iv) a first coupling means (CM1) coupled to the loop antenna (LA) at a first chosen location and arranged to deliver the received VHF signals, v) a second coupling means (CM2) coupled to the loop antenna (LA) at a second chosen location and arranged to deliver the received UHF signals, vi) an amplification means (AM) coupled to the first ground plane (GP1) and arranged to amplify TV signals, and vii) a switching means (SM) arranged to couple the amplification means (AM) to the first coupling

Abstract: Provided is a small monopole antenna having a loop feeder. The small monopole antenna having a loop feeder includes: a loop element forming a loop along a predetermined plane and having a loop feeder at the center thereof; a non-feeding type monopole antenna element including one end connected to a wire of the loop element and other end connected to a ground unit by being bended at the center of the loop element; a ground unit for grounding other end of the non-feeding type monopole antenna; and a first connecting unit for connecting the non-feeding type monopole antenna to an external device for feeding the loop feeder of the loop element through the non-feeding type monopole antenna.

Abstract: A structural antenna system for operation in the HF frequency range, particularly for naval communications, is described, comprising at least one linear radiating arrangement (14) adapted to be operatively associated with a ground conductor (GND) and at least one electrical impedance device (Z1-Z4), in which the aforesaid linear radiating arrangement (14) is coupled to a pre-existing naval structure which has a predominantly vertical extension and is electrically conducting, such as a funnel (F). A structural antenna system with multiple feed comprises a plurality of linear radiating arrangements (114) positioned in meridian planes of the naval structure of the funnel type (F), spaced at equal angular intervals.

Abstract: A fluidic antenna is described, using an electromagnetic energy coupler, a non-metallic container coupled to the electromagnetic energy coupler, a fluid having charged particles moving through the non-metallic container at a predetermined rate, and a charge focuser disposed about the non-metallic container, wherein the electromagnetic energy coupler is configured to couple energy between the fluid and at least one of a transmitter and receiver, and the charge focuser is configured to adjust a cross sectional area of charged particles in the fluid to result in a fluid characteristic impedance that approaches that of a surrounding medium, thereby enabling at least one of launching and receiving electromagnetic energy.