Abstract: An antenna element (115) of an antenna device has first and second root sections (117) and (118) and an intermediate section lying between the first and second root sections (117) and (118). A feed section (114) is provided in the first and second root sections (117) and (118). The first and second root sections (117) and (118) are arranged so as to surround the feed section (114), and are provided in a wind section (113). Tail end linear parts in the wind section (113) extend in respective opposite directions. At least one of the first and second root sections (117) and (118) has a wider width part, which is formed such that a portion that overlaps a feed line connected with the feed section (114) is larger in width than other portions. This makes it possible to realize high radiant gain and improve a VSWR characteristic for each radio wave.

Abstract: An electrical steering lens antenna using a lens composed of a ferroelectric material is provided. The antenna includes a plate composed of a ferroelectric material. The antenna further includes a first resistive electrode disposed on a top surface of the plate. The antenna further includes a second resistive electrode disposed on a bottom surface of the plate. The antenna further includes a first conductive electrode disposed at a center of the first resistive electrode. The antenna further includes a second conductive electrode disposed along an edge of the first resistive electrode. The antenna further includes a power source connected to the first conductive electrode and the second conductive electrode.

Abstract: A reflection controller for modifying electromagnetic reflections from a surface includes a conducting patch being positioned proximate to an electromagnetically reflecting surface. The floating conducting patch includes an electrical conductor at a floating potential positioned on a dielectric substrate where at least one of a dielectric thickness, dielectric constant, or the dimensions of the electrical conductor are chosen to reduces retro-reflection of incident radiation.

Abstract: A waveguide antenna assembly and process for transceiving signals of a predetermined radio frequency range comprising at least two collaterally aligned conductive layers configured in a conformable loop so as to form an electrically isolating channel dimensionally configured for support of the waveguide modes of the predetermined frequency range, an aperture for electromagnetically transceiving the signals, wherein the aperture extends along a surface of the electrically isolating channel such that the aperture extends between the outer edge of the inner surface of the first conductive layer and the second conductive layer, a back short spaced apart from the aperture a predetermined distance equal to a resonant length of the waveguide mode wavelength so as to provide a circuit impedance between the first conductive layer and the second conductive layer for tuning the waveguide to transceive the signals, and excitation points coupled to the aperture to propagate waveguide modes within the electrically isolatin

Abstract: A horn that radiates a radioelectric wave coming from an input waveguide, comprises a grating placed over the aperture of the horn. The waveguide comprises a horn-shaped segment, an entrance, an aperture, and a grating placed next to the aperture. It makes it possible for at least one linearly polarised electromagnetic wave to propagate between the entrance and the aperture along a first axis. The grating comprises a frame and a set of plates extending longitudinally and continuously from a first short side of the frame to a second short side of the frame, so as to form a linear polarising filter for any electromagnetic wave the electric field of which is not polarised along a second axis orthogonal to the first axis. The grating of the waveguide comprises corrugations to reinforce the filtering of the electromagnetic wave the electric field of which is not polarised along the second axis.

Abstract: A printed circuit tri-band antenna has a feedline region and a radiating structure region which provides RF emissions in a lowband (LB) RF frequency, a lower highband (HB-L) frequency, and a upper highband (HB-U) frequency. The feedline region is formed of conductors on an upper plane, the conductors including a feedline which is edge coupled to left and right ground structures. The feedline couples directly to a HB-U radiating structure, and includes a stub. The HB-U structure and stub also provide edge coupling through a gap for coupling RF into a combined HB-L and LB radiation structure, which provides frequency-dependent paths for radiating RF energy at the HB-L and LB frequencies. The antenna is preferably used with 2.35 Ghz LB, 5.07 GHz HB-L, and 5.57 Ghz HB-H.

Abstract: An example method may involve forming, in a first metal layer, a first half of waveguide channels including an input waveguide channel, a plurality of wave-dividing channels, and a plurality of wave-radiating channels. The input waveguide channel may include an input port for receiving electromagnetic waves into the waveguide channels, and the first half of the plurality of wave-radiating channels may include wave-directing members configured to propagate sub-portions of waves from the first metal layer to another metal layer. The method may also involve forming, in a second metal layer, a second half of the waveguide channels. The second half of the wave-radiating channels may include pairs of output ports configured to radiate the sub-portions of waves out of the second metal layer. The method may further involve fastening the first metal layer to the second metal layer so as to substantially align the halves of the waveguide channels.

Abstract: An apparatus, method, and system are disclosed that can be used to reduce the peak radiated flux density of a horn antenna or for testing the electronics associated with a horn antenna. A horn antenna with narrow and wide ends can have disposed within it a surrogate waveguide. The surrogate waveguide has a wide end smaller than the wide end of the horn antenna, and the wide end of surrogate waveguide extending to or beyond the wide end of the horn antenna. A mounting plate or face plate covers a portion of the wide end of the horn antenna.

Abstract: A method for fabricating a radar array assembly comprises providing a mounting plate including first mounting holes and second mounting holes, at least some of the second mounting holes being between at least some of the first mounting holes. Grooved posts having longitudinal grooves are installed within the first mounting holes, and panel sections of antenna elements are disposed within the longitudinal grooves of adjacent installed grooved posts. Each of the antenna elements further includes a connector section that is disposed within the second mounting holes.

Abstract: A patch antenna having a single patch fed with multiple signals is provided. The patch antenna includes: a first patch; a first feeder and a second feeder which are connected to the first patch; and a second patch which is parallel to the first patch. Accordingly, since multiple signals can be fed into a single patch, a MIMO antenna can be embodied by using a patch antenna which has high isolation between feeders without increasing its size.

Abstract: Provided is a ultra-wideband dual linear polarized wave waveguide antenna for communication having a wideband matching structure in which the inner peripheral surface of the first polarized wave filtering unit or the second polarized wave filtering unit, which filters a first polarized wave or a second polarized wave entering the dual linear polarized wave waveguide antenna and orthogonal to each other, are tapered such that a diameter of the inner peripheral surface becomes smaller, and having an extended path so as to adjust the first polarized wave and the second polarized wave so that they are in-phase. By doing so, the ultra-wideband dual linear polarized wave waveguide antenna is capable of both receiving and transmitting and thus can be used for communication, and can adjust skew angles without being mechanically rotated.

Abstract: The embodiments of the present disclosure provide a method for controlling an antenna of a terminal device. The method comprises: acquiring an environmental state parameter of a terminal device; extracting an antenna performance parameter corresponding to the environmental state parameter from a preset antenna performance parameter table; and adjusting an antenna signal of the terminal device using the antenna performance parameter. According to the embodiment of the disclosure, a preferable antenna performance parameter may be obtained by acquiring the environmental state parameter of the location where the terminal device is located, and the antenna is adjusted according to the preferable antenna performance parameter, thereby achieving an intelligent adjustment of the antenna and adapting to the environmental change, thus the antenna is highly practical, strongly adaptive as well as efficient in operation.

Abstract: A communication device integrally formed with antenna and mask is provided. The communication device comprises a circuit board, a frame, a communication chip and a mask. The frame is disposed on an upper surface of the circuit board. The frame has multiple sidewalls perpendicular to the upper surface and surrounding an opening. The communication chip is disposed on the upper surface and located in the opening. The mask is disposed on the circuit board, comprises a cover, multiple plates and an antenna module. The cover covers the communication chip. The plate is projected from a lower edge of the cover and parallel to the sidewalls, and has a hollowed area. The antenna module is connected to the hollowed area and integrally formed with the plate in one piece.

Abstract: Conventionally, people have to go to the place where a measurement instrument for health data is, to obtain health data and the like. Further, even when using a portable measurement instrument, people have to manage data by themselves, thus health data cannot be managed rapidly. According to the invention, a modulating circuit, a demodulating circuit, a logic circuit, a sensor circuit, and an antenna circuit are provided over an insulating substrate, thereby data sensed by the sensor circuit is transmitted wirelessly. According to the invention, health data on the living body (for example a human body) is sensed and can be rapidly detected.

Abstract: A broadband antenna includes first and second radiating conductors. The first radiating conductor includes a short-circuit portion in a serpentine shape, a first radiating arm resonating in a first frequency band, and a second radiating arm. The second radiating conductor includes a feed-in portion coupling with the first radiating arm, a third radiating arm resonating in a second frequency band, and a fourth radiating arm. At least a part of the third radiating arm is in a serpentine shape, couples with the first radiating arm, and resonates in a third frequency band with the short-circuit portion and the second radiating arm. The fourth radiating arm resonates in a fourth frequency band.

Abstract: An ultra-wideband antenna assembly comprising: an electromagnetic reflective structure for reflecting electromagnetic waves; the electromagnetic reflective structure operating to reflect electromagnetic waves in a first direction; an antenna operatively associated with the electromagnetic reflective structure such that electromagnetic waves emitted from the antenna towards the electromagnetic wave reflective structure are reflected back by the electromagnetic reflective structure in the first direction; the antenna being substantially planar and extending in a first plane; the first direction being substantially perpendicular to the first plane; and at least one director operatively associated with the antenna for focusing the electromagnetic waves transmitted by the antenna in the first direction; the at least one director being substantially planar and extending in a second plane wherein the second plane is substantially parallel to the first plane.

Abstract: An optically transparent conformal polymer antenna and a method for producing the antenna from optically transparent conductive polymers. The method includes selecting an antenna design; providing an optically transparent conductive polymer material capable of being printed using an ink-jet printer device; and printing layers of the polymer in the desired antenna design pattern onto a substrate. The surface tension of the polymer solution is adjusted to allow the material to pass through a printer head for printing on a flexible substrate. The material is modified to have a higher conductivity than regular conductive polymer materials so that a suitable antenna may be formed.

Abstract: A Method and system for a RFID transponder with configurable feed point for RFID communications is provided. In this regard, an RFID transponder may receive RF signals via a leaky wave antenna and modulate an amplitude of a backscattered signal associated with the received RF signals by switching between a plurality of feed points of the leaky wave antenna to vary an input impedance of said RFID transponder. Each of the plurality of feed points may be located in a different position in the resonant cavity of the leaky wave antenna. The input impedance may be controlled by switching a load in and out of a receive path of the RFID transponder. The leaky wave antenna may be integrated within and/or on an integrated circuit, an integrated circuit package, or a combination thereof.

Abstract: Reconfigurable multi-band filter techniques are described. In one or more implementations a device includes a radiating structure and a filter connected to the radiating structure configured to filter wireless signals received by the radiating structure. The filter includes switchable resonators configured to tune to different frequency bands and tunable capacitors configured to tune to different frequencies within the different frequency bands.

Abstract: An apparatus includes a sensor that receives a first electrical signal and provides a second electrical signal in response to the first electrical signal. The second electrical signal is based on at least one parameter monitored by the sensor. The apparatus also includes an antenna that converts first wireless signals into the first electrical signal and that converts the second electrical signal into second wireless signals. The antenna includes a substrate, conductive traces, and conductive interconnects. The conductive traces are formed on first and second surfaces of the substrate. The conductive interconnects couple the conductive traces, and the conductive interconnects and the conductive traces form at least one helical arm of the antenna. The conductive traces could be formed in various ways, such as by etching or direct printing. The conductive interconnects could also be formed in various ways, such as by filling vias in the substrate or direct printing.