Abstract: An adaptive antenna array has array elements arranged in element rows and element columns and subarrays arranged in subarray rows and subarray columns, for which the subarray phase centers have non-uniform spacing. The adaptive antenna array provides good detection and tracking performance when used in a radar system, while being inexpensive and easy to manufacture. A radar system and a method of adapting a radar array both employ the above described adaptive antenna array.

Abstract: An antenna includes a dielectric substrate, a radiator, and a grounding board. A chink is formed at the radiator and the chink is loaded with a resistor. The antenna of the present invention has the following merits. The chink on the radiator increases the current path of the radiator so as to increase the frequency bandwidth of the antenna. The resistor loaded in the chink can improve balance the gain balance in the bandwidth.

Abstract: The present invention concerns a dual gain antenna system 100 with an integrated system to control a matching network 214. The dual gain antenna system 100 comprises an antenna that includes a first helically shaped antenna element 104, a second vertical antenna element 106, and a base portion 101. The first antenna element 104 is disposed around a longitudinal axis of a dielectric rod 102 that contains a bore 205. The second antenna element 106 is disposed within the longitudinal axis of the dielectric rod bore 205. A sensor 215 detects when the second antenna element 106 is in the extended position and transmits a control signal to a matching system 214 that selectively controls the impedance matching network 214 between the antenna and the RF feed line 103.

Abstract: In one embodiment, a wafer scale antenna array is provided that includes: a substrate, a first plurality of antennas adjacent to the substrate; and a driving network adjacent the substrate for transmitting RF signals to the plurality of antennas and for receiving RF signals from the plurality of antennas, the driving network coupling to a distributed plurality of driving amplifiers and corresponding matching amplifiers integrated with the substrate.

Abstract: To be able to downsize an electronic apparatus having an antenna having a plurality of antenna coils. A radio wave timepiece includes an antenna for receiving a radio wave signal including time information and the antenna is provided not to be projected from a contour of a timepiece movement. The antenna includes a plurality of antenna coils wound to laminate on a core, when the antenna 101 is used by being contained in a metal cabinet, the antenna coil wound around an upper layer and having a large inductance value is used, when the antenna is used by being contained in a plastic cabinet, the antenna coil wound around a lower layer and having a small inductance value is used, thereby, regardless of a kind of the cabinet, the radio wave timepiece can be downsized and a predetermined radio wave receiving sensitivity can be achieved.

Abstract: The invention includes a mechanical scanning feed and a spherical lens antenna system. The mechanical feed includes a waveguide, which has a movable wall assembly that contains a guide slot. The moveable wall portion also includes an end wall that is located proximate to the guide slot to prevent leakage of the propagating energy out of the waveguide. The mechanical feed also includes a drive mechanism, which moves the moveable wall assembly along the waveguide in a direction that is parallel to the direction of propagation of the energy. This allows the guide slot to be positioned at any elevation angle to allow a portion of the propagating energy to exit through the guide slot. This in combination with the waveguide being able to be rotated 360 degrees about the spherical lens provides the antenna system with nearly spherical coverage.

Abstract: The quasi-twin lead line includes a dielectric substrate having a first side and an opposite side. A top conductor trace is integral with the first side of the dielectric substrate. The top conductor trace has a top conductor axis, a top conductor length, and a top conductor width, wherein the top conductor width is substantially uniform along the top conductor length. An opposite trace is integral with the opposite side of the dielectric substrate. The opposite trace has an opposite length and an opposite width substantially congruent to the top conductor length and the top conductor width. The opposite trace also has an opposite axis substantially parallel to the top conductor axis, wherein a plane containing both the top conductor axis and the opposite axis is oblique relative to the dielectric substrate.

Abstract: An antenna arrangement operable to transmit/receive in a first communications band and a second communications band, including a ground plane; a first conductive element for transmitting/receiving; a second conductive element separate from the first conductive element and the ground plane and having a first portion proximal to, but separated from the first conductive element and a second portion proximal to, but separated from the ground plane; and a switch element for connecting/disconnecting the second conductive element to the ground plane, wherein, the first conductive element, when the switch element disconnects the second conductive element from the ground plane, is operable to transmit/receive in a first communications band and is inoperable to transmit/receive in a second communications band and the first conductive element, when the switch element disconnects the second conductive element from the ground plane, is operable to transmit/receive in the second communications band and inoperable to transm

Abstract: Provided herein are methods and systems for preparing signs and displays. The methods and systems include using a light engine for generating light of a plurality of colors to illuminate the body of a flexible conduit that receives light from the light engine. The conduit can be used as a sign, display, or similar lighting facility in many applications that traditionally used neon signs and displays.

Abstract: A metalized circuit suitable for application as a radio frequency antenna is produced by forming an antenna coil pattern on a flexible substrate. The antenna coil pattern is formed using a conductive ink which is patterned on the substrate. The conductive ink is cured and an electrical-short layer is formed across the coils of the conductive ink pattern. An insulating layer is formed over top of the electrical-short layer, a metal layer electroplated on top of the conductive layer, and then the electrical-short layer is removed. The use of the electrical-short layer during the electroplating allows for the voltage at the different points on the conductive ink layer to be relatively similar, so that a uniform electroplate layer is formed on top of the conductive ink layer. This results in a better quality radio frequency antenna at a reduced cost.

Abstract: An antenna array (e.g., microstrip patch antenna) operates in a manner that exploits the particular susceptibility of the mutual coupling effects between radiating elements in the array. Various differential-mode excitation schemes are provided for determining optimal differential-mode voltages or optimal differential-mode currents that are applied to the radiating elements (e.g., microstrip patches) to thereby achieve certain desirable radiation characteristics including, for example, aiming a radiated beam in a prescribed direction, steering the beam, shaping the radiated beam, and/or optimizing the gain of the antenna in a specified direction.

Abstract: An antenna system for use in a communications device, such as a mobile phone. The antenna system has a multiband GSM antenna operating at GSM850, GSM900, GSM 1800 and GSM 1900 that has a short-circuited section located between a separate UMTS antenna and a UMTS receive diversity antenna. As such, large electrical isolation between the two UMTS antennas can be achieved. The UMTS antennas can be short-circuited microstrip loop antennas, IFA, PIFA, ILA or PILA antennas. These antennas are well-isolated antennas instead of coupled antennas. As such, the diversity antenna is well isolated from the main antenna despite its close proximity to the main antenna. Well-isolated antennas have little mutual coupling and, therefore, are easier to design than coupled antennas, because isolated antennas can be tuned independently from each other.

Abstract: A wideband monopole antenna including an emitter which is embodied in the form of a disc and vertically arranged at a predetermined spacing above an electrically conductive base plane. The disc-shaped emitter includes a modified section initially having a circular or elliptical disc form, with the modified section being limited by a border outline deviating from the circular or elliptical form.

Abstract: Antennas are provided which are constructed using one or more wires as radiating elements attached to a substrate or chip, wherein wire bonding methods can be used to attach and form loop profiles for the wires. The antennas can be integrally packaged with IC chips (e.g., IC transceivers, receivers, transmitters, etc.) to build integrated wireless or RF (radio frequency) communications systems.

Abstract: A system and method for a wireless link to a remote receiver includes a communication device for generating RF and a planar antenna apparatus for transmitting the RF. The planar antenna apparatus includes selectable antenna elements, each of which has gain and a directional radiation pattern. The directional radiation pattern is substantially in the plane of the antenna apparatus. Switching different antenna elements results in a configurable radiation pattern. Alternatively, selecting all or substantially all elements results in an omnidirectional radiation pattern. One or more directors and/or one or more reflectors may be included to constrict the directional radiation pattern. The antenna apparatus may be conformally mounted to a housing containing the communication device and the antenna apparatus.

Abstract: A built-in antenna module of a wireless communication terminal is provided. In the antenna module, a substrate is disposed inside a terminal body and has a plurality of electronic parts mounted therein. At least one radiator rib is integrally extended from the terminal body along a predetermined pattern in accordance with properties of the antenna. A radiator line is made of a conductive elastomer which is dispensed and coated onto an upper end of the radiator rib. The radiator line has an end electrically connected to a feeding part of the substrate. The invention simplifies a process for manufacturing the antenna module, thereby improving work productivity and saving manufacturing costs. The invention also allows the antenna to be modified in design more flexibly and the terminal product to be miniaturized.

Abstract: A multiband base station antenna for communicating with a plurality of terrestrial mobile devices is described. The antenna including one or modules, each module including a low frequency ring element; and a high frequency dipole element superposed with the low frequency ring element. The element includes a ground plane; and a feed probe directed away from the ground plane and having a coupling part positioned proximate to the ring to enable the feed probe to electromagnetically couple with the ring. A dielectric clip provides a spacer between the feed probe and the ring, and also connects the ring to the ground plane. An antenna element is also described including a ring, and one or more feed probes extending from the ring, wherein the ring and feed probe(s) are formed from a unitary piece.

Abstract: The invention provides apparatuses for a radial constrained lens in a steerable directional antenna system. The radial constrained lens includes a feed array that excites a continuous radiating aperture through a section of radial waveguide. Feed elements of the feed array are coupled to a feed network that processes a signal for each of the active feed elements. A feed array may include a plurality of feed probes or a plurality of waveguide sections. A sector, which includes a contiguous subset of feed elements, may be configured by a switching arrangement either in a transmit mode or a receive mode. The radial constrained lens may be commutated about a full 360 degree aperture view. Also, a plurality of radial constrained lens may be vertically stacked so that a scanned beam may be adjusted both in an azimuth and elevation directions.

Abstract: An antenna assembly comprises a composite support structure including an electrically conductive outer layer, an inner layer and a core layer between the outer layer and the inner layer; a cavity structure positioned adjacent to the inner layer of the composite support structure; a window structure positioned adjacent to the outer layer of the composite support structure; and a plurality of conductive z-pins passing through the composite support structure and electrically connecting the cavity structure to the outer layer of the composite support structure.

Abstract: A string set of series-connected incandescent bulbs in which substantially all of the bulb filaments in the set are individually provided with a shunt circuit which includes a voltage responsive switch which is inoperative during normal operation of the string set when connected to a source of operating potential and which becomes operative only in response to an increase in the voltage thereacross which exceeds its rating, and in which the remaining bulbs of the circuit continue to receive substantially rated current therethrough and substantially rated voltage thereacross and further continue to be illuminated at substantially constant illumination even though other or substantially all of the other bulbs in the string are either inoperative or are missing from their respective sockets.