Abstract: In an antenna apparatus, two pattern antennas are arranged side by side in an area close to a ground conductor layer on a surface of a dielectric substrate, in such a manner as to be formed substantially line-symmetrical with each other. Each of the pattern antennas includes a radiation element having a feed coupler, a mutual coupler, and a feed element fed by a high frequency circuit unit. An open end of the radiation element is located near the ground conductor layer. The feed element and the feed coupler are capacitively coupled with each other, whereby the radiation element is excited. At the excitation, the mutual couplers that extend substantially in parallel with and close to each other are capacitively coupled with each other, and hence, polarization planes of the electric fields radiated from the radiation elements can be made orthogonal to each other.

Abstract: A communication device is presented that has an antenna structure with a relatively short length and covers multiple resonances including the UHF and the GPS bands. The antenna structure has a conductive base to which a whip antenna is connected through a helical radiating element. A cylindrical sheath capacitively connected to the helical element provides distributed impedance matching for the antenna structure. A monopole or another helical element provides higher resonance than that of the whip antenna or connected helical element. If the higher resonance is provided by a monopole, the monopole is disposed radially adjacent to the helical element and is capacitively connected with the helical element through an opening in the sheath. If the higher resonance is provided by a helical element, the helical element is capacitively or galvanically connected to the end of the whip antenna.

Abstract: An integrated circuit includes a plurality of circuits including a plurality of millimeter wave interfaces for communicating data between the plurality of circuits via millimeter wave RF signaling. A power supply line supplies at least one power supply signal to the plurality of circuits. The power supply line includes a plurality of antenna elements to facilitate the communicating of first data between the plurality of circuits via the millimeter wave RF signaling.

Abstract: A dipole antenna includes a substrate, a first conductive slice and a second conductive slice. The substrate has a first surface, a second surface and a first conductive hole. The second surface is disposed opposite to the first surface, and the first conductive hole passes through the first surface to the second surface. The first conductive slice is disposed on the first surface and has a feeding point. The second conductive slice is disposed on the second surface and has a ground point. The first conductive slice and the second conductive slice are disposed interlacedly and electrically connected to each other via the first conductive hole. The total length of the first conductive slice, the second conductive slice and the first conductive hole has to match the operating frequency of the dipole antenna.

Abstract: A millimeter-wave communication system includes (i) an antenna comprising a reflector and a feed, the feed comprising a first waveguide, (ii) a Printed Circuit Board (PCB) comprising a modem, a processor, and a radio receiver coupled with a probe, the PCB is mechanically fixed to one end of the feed, such that the PCB is mechanically held by the feed, and the probe is located in a position allowing reception of millimeter-waves exiting the first waveguide towards the PCB, (iii) an Ethernet connector, (iv) at least one flexible cable operative to carry Ethernet signals between the first PCB and the Ethernet connector, and (v) a box housing the PCB and the Ethernet connector. The Ethernet connector and the feed are mechanically fixed to the box, and the only mechanical connection between the PCB and the box is via the feed.

Abstract: A method for accurately guiding millimeter-waves includes the following steps: Filtering millimeter-waves by applying the millimeter-waves at a first shape aperture of a filter waveguide, resulting in filtered millimeter-waves exiting a second shape aperture of the filter waveguide. Transporting the filtered millimeter-waves over a distance of between 9 centimeters and 25 centimeters, by applying the filtered millimeter-waves to an extruded waveguide having a length of between 9 centimeters and 25, and having a cavity featuring a cross-section that is accurate to within +/?0.05 millimeters throughout the length of the extruded waveguide, resulting in transported millimeter-waves. And producing, on a reflector, an illumination pattern that is accurate to a degree that allows conforming to a first level of radiation pattern accuracy, by applying the transported millimeter-waves at a focal point of the reflector.

Abstract: 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.

Abstract: A dish antenna with a cover that inhibits the accumulation of water, liquid or frozen, on the front surface of an antenna. One or more vibration mechanisms are engaged with the cover so as to vibrate the cover when water, either frozen or liquid, may be present on the outer surface of the cover so as to inhibit the water from disrupting signals being transmitted to or from the dish antenna.

Abstract: A frequency reconfigurable antenna may include at least two antenna segments and a photonic crystal positioned between the at least two antenna segments. The photonic crystal may selectably electrically connect or isolate the at least two antenna segments with respect to each other based on a conductive state of the photonic crystal.

Abstract: An antenna array lattice design is disclosed, comprising a plurality of column and row members that interconnect using a tongue and groove feature to result in a stable lattice arrangement. Each row and column member comprises a plurality of slots configured to receive corresponding slots of opposing row or column members. The slots have surfaces that run approximately one half the length or width of the associated member. The slot surfaces have recesses machined therein, and the recesses are shaped to accept correspondingly shaped projections of the opposing row or column member. In one embodiment, the recesses are T-shaped, as are the associated projections. The slots acts as a guide for the row to column attachment during assembly, while the precise geometry of the groove design allows both tensile and compressive forces to be carried across the entire depth of the joint, thus maximizing the stiffness/weight ratio of the resulting array lattice structure.

Abstract: An electromagnetic wave filter apparatus includes: a shield conductor; a shield aperture provided in the shield conductor; a plurality of strip conductors, each of which is connected to the shield conductor at both ends thereof, and which divide the shield conductor into a plurality of apertures; and a plurality of stub conductors provided at intervals on each of the strip conductors. Each of the stub conductors prevents a current with a predetermined frequency from flowing through a corresponding strip conductor due to an electromagnetic wave with the predetermined frequency passing through the electromagnetic wave filter apparatus. Thus, the electromagnetic wave filter apparatus passes the electromagnetic wave with the predetermined frequency without exerting a substantial influence on radiation of the electromagnetic wave with the predetermined frequency.

Abstract: The embodiments described herein are directed to providing a notched antenna element for improving polarization control without sacrificing gain, bandwidth, scan volume, recurring cost, or manufacturability. The notched antenna element includes a base portion comprising a plurality of contiguous first cross-sectional notched antenna elements, each of the plurality of first cross-sectional notched antenna elements configured in an end-loaded structure for increasing polarization stability; and an upper portion coupled to the base portion, the upper portion comprising a plurality of contiguous second cross-sectional notch antenna elements.

Abstract: An antenna including: a conducting wire part which includes a first part extending in a first direction, a second part extending from an end of the first part in a direction crossing the first direction, and a third part extending from an end of the second part to face the first part, wherein lengths of the first and third parts are different from each other.

Abstract: A variably controlled stagger antenna array architecture is disclosed. The array employs a plurality of driven radiating elements that are spatially arranged having each radiating element or element groups orthogonally movable relative to a main vertical axis. This provides a controlled variation of the antenna array's azimuth radiation pattern without excessive side lobe radiation over full range of settings.

Abstract: An antenna device for transmitting and receiving electromagnetic signals. The antenna device includes a ground plane and a radiator arranged at an radiator distance above the ground plane. In addition, the antenna device includes a plurality of parasitic elements arranged, on the ground plane, around the radiator in a radially symmetric manner, the parasitic elements being electrically connected to the ground plane.

Abstract: The present invention relates to a porous magnetic antenna, comprising: an antenna; an insulating layer, having one side next to said antenna; and a magnetic layer, placed next to the other side of the insulating layer, separated from said antenna with a distance, and having at least one hole. The porous magnetic antenna has the advantages of shaping the field pattern, lowering the sensitivity, improving the gain value and possessing stable directionality.

Abstract: A miniature wire antenna includes N rectangular metal plates located at a first layer of a PCB, a tunable metal plate located at the first layer of the PCB and N serpentine lines located at a second layer of the PCB. The positions of the N serpentine lines correspond to the positions of the rectangular metal plates. A first end of each of the serpentine lines is connected to the corresponding rectangular metal plate, and a second end of each of the serpentine lines is connected to the next rectangular metal plate. A first end of the last serpentine line is connected to the corresponding rectangular metal plate, and a second end of the last serpentine line is connected to the tunable metal plate.

Abstract: An embodiment of the present invention discloses a wireless terminal. The wireless terminal according to the embodiment of the present invention includes a PCB primary board, a primary board circuit printed on both sides of the PCB primary board, and a diversity antenna, where the diversity antenna is disposed at an end of the PCB primary board, a first primary board metal shielding cover and a second primary board metal shielding cover are each disposed on the primary board circuit on the both sides of the PCB primary board, a radiator is printed on at least one side panel of the PCB primary board, the radiator and the primary board circuit are located in different areas of the PCB primary board, and a first wave absorbing sheet is attached to the first primary board metal shielding cover and/or the second primary board metal shielding cover.

Abstract: A monopole slot antenna applicable to a mobile communication device includes a dielectric substrate, a first ground plane, a second ground plane, a monopole slot, and a microstrip feedline. The first ground plane is disposed on the dielectric substrate. The second ground plane is in the vicinity of the first ground plane and electrically connected to the first ground plane via a metal wire. A section of the metal wire is disposed on one surface of the dielectric substrate. The monopole slot is disposed on the first ground plane and has an open end disposed near the metal wire that connects the first and the second ground planes. The microstrip feedline is disposed on a surface of the dielectric substrate opposite to the first ground plane with one end of the microstrip feedline extended across the monopole slot and the other end connected to a signal source.

Abstract: A multi-band antenna includes a grounding element having an edge and a grounding point, a first radiating arm being substantially of L shape and located above the grounding element, a second radiating arm working at a first frequency band and being substantially of L shape above the first radiating arm, a third radiating arm working at a second frequency band and being substantially of rectangular metal patch parallel to the edge of the grounding element, and a feeding line including an inner conductor connected to the first radiating arm and an outer conductor connected to the grounding point of the grounding element. The feeding line, the first radiating arm, the grounding element commonly compose a slot operating at a third frequency band.