Abstract: A radome for covering an open end of a reflector dish of a reflector antenna has a generally planar portion of twin-wall extruded polymer material dimensioned to cover the open end of the reflector dish. A periphery of the planar portion is provided with a plurality of slits, the slits defining a plurality of tabs. The tabs are dimensioned for folding around a rim of the reflector dish. The tabs may be retained in the folded position by, for example, a band clamp or directly coupling a portion of the tabs to the planar portion.

Abstract: A thermal barrier coated radio frequency (RF) radome is provided having a radio frequency (RF) radome with an exterior surface, an interior surface, a tip, and a base, wherein the RF radome is designed to transmit RF signals. A thermal barrier coating is applied to an exterior surface of the radome, wherein the thermal barrier coating has a dielectric constant of less than about 2.0, and further wherein the thermal barrier coating reduces a structure temperature of the RF radome by greater than 300 degrees Fahrenheit to enhance thermo-mechanical properties and performance of the RF radome.

Abstract: According to various aspects, exemplary embodiments are disclosed herein of Multiple Input Multiple Output (MIMO) antenna assemblies operable over multiple frequency bands, including LTE (Long Term Evolution) frequencies (e.g., 4G, 3G, other LTE generation, B17 (LTE), LTE (700 MHz), etc.). In various embodiments, an antenna assembly generally includes a first or primary cellular antenna and a second or secondary cellular antenna. The first cellular antenna may be configured to be operable for both receiving and transmitting communication signals within one or more cellular frequency bands (e.g., LTE, etc.). The second cellular antenna may be configured to be operable for receiving communication signals within one or more cellular frequency bands (e.g., LTE, etc.). The antenna assembly may also include additional antennas for receiving satellite signals, such as satellite digital audio radio services (SDARS) signals and/or global positioning system (GPS) signals.

Abstract: A protective ballistic radome for a satellite antenna which can turn about an axis of rotation, has: a circular support in the form of a ring, having an axis of revolution RR? to coincide with the axis of rotation, with the circular support having a lower base and an upper part in planes respectively parallel and perpendicular to the axis RR?, an annular groove, having an axis of revolution that coincides with the axis RR?, opening onto the upper part of the circular support, a set of n contiguous walls having upper ends and lower ends in planes that are respectively parallel and perpendicular to the axis RR?, the walls having their lower ends inserted into the annular groove of the circular support in order to form a ballistic wall in the form of a tube of circular section, having the same axis of revolution RR?, about said satellite antenna.

Abstract: An electronic equipment comprises: a metal casing defining a first face formed so as to provide an opening, a second face connected to the first face; and a shielding member arranged adjacent to the first face to shield radio waves, wherein the metal casing has a cutout formed in the second face so as to come close to the first face, a part of the shielding member is arranged to be closer to the first face than a first end of the cutout, the first end is further away from the first face than a second end of the cutout on the side of the first face, and wherein an antenna is provided on outer side of a virtual line connecting a corner of the shielding member adjacent to the first face and closest to the second face with the first end of the cut out.

Abstract: The invention is a unit for fixing an antenna, comprising: a base element suited to support the antenna, provided with a contact surface suited to rest against a plate-like supporting body; a fixing element comprising a main body suited to be connected to the base element through joining means that define a connection direction, and a projecting body mainly developed according to the connection direction and associated with the main body through a deformable connection section. The projecting body has a reference surface facing a corresponding thrust surface of the main body and spaced from it, the connection section being configured so that its deformation makes it possible to move near each other and bring into contact the reference surface and the thrust surface when the fixing element is connected to the base element.

Abstract: A connector assembly for an implantable medical device with hardware components placed in established physical locations within the polymer of the connector, and a method of making the assembly. One embodiment includes a method that involves forming a first shot, coupling at least one hardware component to the first shot to form a subassembly, placing the subassembly between a set of opposing areas of a mold, moving at least one of the areas of the set of opposed areas of the mold to constrain the subassembly within the mold, and introducing a second shot over at least a portion of the subassembly to form the connector.

Abstract: An antenna radome assembly has a radome base and an annular stationary bearing plate attached to and spaced from the radome base. A rotary joint has a fixed portion attached to the stationary bearing plate and a rotating portion extending through a central opening of the stationary bearing plate. A rotating platform is attached to the rotating portion of the rotary joint. The rotating platform includes a circular recess extending into the rotating platform from a first side. The stationary bearing plate is disposed completely within the circular recess. An annular bearing assembly is disposed within the circular recess between the rotating platform and the stationary bearing plate. The bearing assembly is in contact with the rotating platform and the stationary bearing plate, and the rotating platform rotates with respect to the stationary bearing plate and the radome base.

Abstract: A unified antenna of shark fin type comprises a pad, a base disposed on upper surface of the pad and providing a space for arranging a printed circuit board and a plurality of antenna units, and a case for covering the pad and the base, wherein the antenna further comprises: a first antenna unit disposed in the middle of the printed circuit board and provided for receiving signal of AM/FM band; a second antenna unit disposed near the first antenna unit and provided for receiving signal of DMB (Digital Multimedia Broadcasting) band; and a third antenna unit disposed in front of the first antenna unit and provided for receiving signal of GPS (Global Positioning System) band, and a first auxiliary unit is disposed over the first antenna unit for enhancing electrical properties of the first antenna unit.

Abstract: An antenna spring structure and an electronic device using the same. The antenna spring structure includes an antenna spring provided with an elastic arm and a protruding portion coupled to the elastic arm, a casing having at least one opening and pivotally coupled to an end of the casing; a cover disposed on the antenna spring and having a first positioning groove and a second positioning groove formed on the protruding portion and disposed with an interval apart, a circuit board disposed inside the casing, and at least one conductive component installed on the circuit board and corresponding to at least one opening, and passed through the at least one opening and exposed from the casing. When the antenna spring is switched from a first position to a second position, the at least one conductive component presses the antenna spring.

Abstract: The present invention refers to a triple-band antenna array for cellular base stations operating at a first frequency band and at a second frequency band within a first frequency range, and also at a third frequency band within a second frequency range. Said triple-band antenna array comprises a first set of radiating elements operating at the first frequency band, a second set of radiating elements operating at the second frequency band, a third set of radiating elements operating at both the third and the first frequency bands, and a fourth set of radiating elements operating at both the third and the second frequency bands. The radiating elements are arranged in such a way that at least some of the radiating elements of the first set are interlaced with at least some of the radiating elements of the third set, and at least some of the radiating elements of the second set are interlaced with at least some of the radiating elements of said fourth set.

Abstract: An integrated radio frequency (RF)/optical window includes an RF radome portion provided from a composite material substantially transparent to RF energy disposed about an optical window configured for use with an optical phased array.

Abstract: Method and monopole antenna for making uniform the radiation of the antenna, when disposed inside a radome. According to the invention, on the surface of the monopole antenna is formed a protruding longitudinal ridge which is disposed at least approximately opposite an area of the radiating pattern of the assembly radome (1)-monopole antenna having a reduced gain in comparison with the radiating pattern of said monopole antenna alone.

Abstract: The invention relates to a radome (1) for an aircraft, and more specifically to a device for connecting said radome to the structure of said aircraft. The radome that is the subject of the invention comprises a plurality of locking units able to bring together the opposing surfaces of the aircraft's fuselage (10) and the radome (1), each unit comprising: locking means (20) able to exercise a traction force on the surface of the fuselage, substantially normal to the surface, via attachment means; centering means able to withstand the shear forces substantially tangential to the opposing surfaces of the fuselage and radome; the locking means (20) are placed such that they are located inside the cone of resulting forces on the centering means so as to minimize the bending stresses generated by the assembly in the radome (1).

Abstract: Radio devices for wireless transmission including an integrated adjustable mount allowing mounting to a pole or stand and adjustment of the angle of the device (e.g., the altitude). The device may include a compact array antenna having a high gain configured to operate in, for example, the 5.15 to 5.85 GHz band and/or the 2.40-2.48 GHz band. The antenna emitters may be arranged in a separate plane from a plane containing the antenna feed connecting the emitting elements and also from a ground plane. The antenna array may be contained within a protective weatherproof housing along with the radio control circuitry.

Abstract: Indoor/outdoor broadband wireless combined radio/antennas configured to include an integrated adjustable mount allowing mounting to a pole or stand and adjustment of the angle of the device (e.g., the altitude) by a lockable ball joint. The device may include a compact array antenna having a high gain configured to operate in, for example, the 5.15 to 5.85 GHz band and/or the 2.40-2.48 GHz band. The antenna emitters may be arranged in a separate plane from a plane containing the antenna feed connecting the emitting elements and also from a ground plane. The antenna array may be contained within a protective weatherproof housing along with the radio control circuitry. The antenna may be manufactured by a simple stamping/forming process. The apparatuses may be configured for low impedance mismatch and may have a high gain relative to a very small and compact overall shape.

Abstract: A method of optimizing an antenna system can include determining a desired angle to rotate an antenna based on an axial ratio of electromagnetic waves exiting a radome that surrounds the antenna. The desired angle can be determined by a computing device based on a set of axial ratio values.

Abstract: A radome for the installation in the front section of a motor vehicle, includes the radome being assembled from at least two plates, made from plastic, which are adhered to each other. The radome forms a pattern. A metallic part of the pattern is vapor coated on an interior of a first plate in an accurately fitting fashion as a metallic layer and that the interior with the vapor coated metallic layer is covered with a lacquer coating. A method for the production of such a radome is also disclosed.

Abstract: An antenna apparatus which has the centroid close to a base and which has a less constraint for placement of a counter weight. The antenna apparatus includes a base fixed to a moving object or a structural object, an antenna unit disposed at a side of the base and supported by the base, and a counter weight unit disposed at a side of the base opposite to the antenna unit and supported by the base.

Abstract: An antenna of the present disclosure has a housing having a shallow cavity in the housing and a flat, disk-shaped radiating element disposed in the shallow cavity, the radiating element having an arc shape slot. In addition, the antenna has a substantially circular parasitic element disposed in the shallow cavity on the bottom of the housing. The antenna operates as a half-wave antenna at a frequency range of 450 MHz to 470 MHz and as a full-wave antenna at a frequency range of 902 MHz to 928 MHz.

Abstract: A cellular communication antenna has a base with a length that exceeds its width and an inside surface with internal mounts for a plurality of electrical components that generate heat when in operation. A top encapsulates the electrical components and incorporates a radome. A plurality of fins are mounted on the outside surface of the base. They may be non-parallel with the length of the base. They may all be substantially the same length. They are further constructed and arranged to be in thermal communication with the electrical components such that heat generated by the electrical components is dissipated by the fins. Each fin may be in thermally conductive communication with more than one electrical component.

Abstract: An electronic package is provided, which includes: a substrate; at least an electronic element disposed on the substrate; an antenna structure disposed on the substrate; and an encapsulant formed on the substrate for encapsulating the electronic element and the antenna structure. Therein, the antenna structure has an extension portion and a plurality of support portions connected to the extension portion for supporting the extension portion over the substrate so as to save the surface area of the substrate, thereby meeting the miniaturization requirement of the electronic package.

Abstract: An antenna sheath includes a tubular member and a base unit. One end of the tubular member is formed with two lateral boards corresponding to each other, an opening is formed between the two lateral boards, each of the lateral boards is formed with a shaft hole, and the inner periphery of at least one of the two shaft holes is formed with at least one first convex tooth; the base unit is installed with a connector inserted in the opening and formed with two lateral surfaces corresponding to each other, the two lateral surfaces are respectively installed with a rotation shaft correspondingly pivoted in the shaft hole, the outer periphery of at least one of the two rotation shafts is formed with plural second convex teeth annularly arranged, and the first convex teeth is engaged between any two of the adjacent second convex teeth.

Abstract: An apparatus for a case for an electronic device containing one or more antennas is disclosed. The apparatus for the electronic device comprises a metal layer, a dielectric layer and a masking layer, wherein the masking layer has one or more channels, and some of the channels have antenna therein. The antenna extends from one wall to another wall of the case.

Abstract: The satellite television antenna device receives a set of desired satellite identifications (IDs) from a set top box (STB). The antenna device scans the sky and locks onto a satellite candidate by measuring microwave radiation. The antenna acquires identification of the satellite candidate from a set top box (STB), if ID is possible. Then, if the candidate was identifiable, the antenna system compares the candidate's ID to the set of desired satellite IDs. If the candidate ID is a member of the set, then the satellite antenna's dish orientation is stored in memory. The antenna then attempts to acquire the remaining members of the set of desired satellite IDs until all members are acquired or no further candidates remain. If the candidate is not identifiable, or not a member of the set, then the antenna proceeds to the next satellite candidate.

Abstract: A cylindrical-shaped enclosure having tapered ends. The enclosure includes a module having a radio disposed on a printed circuit board and an antenna connected to the PCB. The enclosure has a main piece coupled to a lower piece and to a top piece, an optionally a fourth piece coupled to the top piece. A mounting subsystem is mounted to the main piece and includes a hole configured to receive therethrough a wires that connect to the printed circuit board. The antenna is configured to rotate about an axis that extends along a longest dimension of the enclosure. The module includes a metal plate to which the antenna is directly mechanically and electrically coupled without any cable such that the wires lack any control signals for controlling the antenna. The top and/or lower pieces can house any combination of a camera, an environmental sensor, security equipment, or a lighting system.

Abstract: A low power, lightweight, collapsible and rugged antenna positioner for use in communicating with geostationary, geosynchronous and low earth orbit satellite. By collapsing, invention may be easily carried or shipped in a compact container. May be used in remote locations with simple or automated setup and orientation. Azimuth is adjusted by rotating an antenna in relation to a positioner base and elevation is adjusted by rotating an elevation motor coupled with the antenna. Manual orientation of antenna for linear polarized satellites yields lower weight and power usage. Updates ephemeris or TLE data via satellite. Algorithms used for search including Clarke Belt fallback, transponder/beacon searching switch, azimuth priority searching and tracking including uneven re-peak scheduling yield lower power usage. Orientation aid via user interface allows for smaller azimuth motor, simplifies wiring and lowers weight. Tilt compensation, bump detection and failure contingency provide robustness.

Abstract: An electronic device is provided. The electronic device includes a conductive housing, a first antenna element, a second antenna element and an insulation structure. The first antenna element is disposed in the conductive housing. The second antenna element is disposed on an external surface of the conductive housing and is opposite to the first antenna element. The conductive housing generates a first current in response to the operation of the second antenna element. The insulation structure penetrates through the conductive housing and extends from at least one side of the conductive housing to the second antenna element. The conductive housing generates an induction current in response to the operation of the first antenna element. The insulation structure blocks the induction current so that the conductive housing generates a second current, and a direction of the first current is the same as a direction of the second current.

Abstract: An enclosure for an electronic device may include an outer enclosure and an optional metallic cage. The metallic cage may include sides, a bottom and a top that collectively define an enclosed volume, with the top being slanted at a non-zero angle with respect to the bottom. The outer enclosure may at least partially enclose the metallic cage and may define a plurality of structural posts and a top surface that faces the top of the metallic cage. The top surface may define a plurality of recesses, each being configured to receive a wireless antenna of the electronic device. The recesses may be oriented to provide a predetermined angular displacement between the antennas and may be disposed to define a predetermined spacing relative to the metallic cage. A set of beveled through-holes may be defined in the top of the metallic cage, aligned with respective ones of the structural posts.

Abstract: An antenna device for a vehicle and a manufacturing method thereof are provided. The antenna device includes an antenna coil disposed in a helical antenna shape having a substantially constant pitch interval and a connector disposed on a first end of the antenna coil. A cylinder member, electrically connected to the antenna coil, is disposed on a second end of the antenna coil. A first fixing member covers a portion of the connector and the first end of the antenna coil to fix the antenna coil to the connector. A second fixing member is filled into a hollow portion and a gap within the substantially constant pitch interval and a third fixing member covers the second end of the antenna coil. A cover member covers the antenna coil, a portion of the connector, the cylinder member, the first fixing member, the second fixing member and the third fixing member.

Abstract: An antenna apparatus is provided which has a centroid close to a vibration isolation structure and which is hard to vibrate like a pendulum motion when vibration is applied. The antenna apparatus includes a first base plate, an antenna unit disposed at a side of the first base plate and supported by the first base plate, and a counter weight unit disposed at another side of the first base plate opposite to the antenna unit and supported by the first base plate. The antenna apparatus further includes a vibration isolation structure having one end fixed to the first base plate to suppress a vibration of the first base plate, and a second base plate to which other end of the vibration isolation structure is fixed and which is fixed to a moving object or a structural object.

Abstract: An antenna device includes: an upright antenna rod connected electrically to and extending upward from a connector; an outer casing mounted on the connector for covering the antenna rod; and a conductive member disposed in the outer casing. The conductive member has an intermediate connecting portion connected electrically to a top of the antenna rod, and two spaced apart sensing portions extending respectively and downward from opposite sides of the intermediate connecting portion toward the connector such that the antenna rod is disposed between the sensing portions.

Abstract: The invention provides a fully enclosed and modular, integrated radome communications tower capable of being helicoptered into remote locations and installed without the need for heavy equipment. The communications tower includes a radome shell that fully encloses and supports a lightweight antenna mounting system, with the shell and mounting system attached to a base to form an integrated tower. The tower can be preassembled as modular components or as a complete unit. To deliver the tower to its site of installation, it can be flown into place either modularly or as a complete unit.

Abstract: In a wireless communication device having a sheet-like antenna 41 and a first and second covers 42, 43 covering the antenna 41, a dielectric first rib 42a that is in contact with the antenna 41 is provided on the antenna 41 side of the first cover 42. The method for adjusting a resonance frequency is as described below. The first cover 42 on which the first rib 42a is provided is molded using a mold, a resonance frequency of the antenna 41 covered with the first cover 42 thus molded is measured, and the measured resonance frequency is compared with a predetermined frequency. The mold is changed such that the contact area between the first rib 42a and the antenna 41 is increased when the measured resonance frequency is higher than the predetermined frequency, and is decreased when the measured resonance frequency is lower than the predetermined frequency.

Abstract: Thermal barrier coated RF radomes and a method for making the same are provided. In an embodiment of the disclosure, there is provided a method for making a thermal barrier coated radio frequency (RF) radome. The method comprises providing a radio frequency (RF) radome. The method further comprises applying a thermal barrier coating having a dielectric constant less than about 2.0 onto a surface of the radome to form a thermal barrier coated RF radome. The thermal barrier coating reduces a structure temperature of the radome by greater than 300 degrees Fahrenheit to enhance thermo-mechanical properties and performance of the RF radome.

Abstract: A housing combination includes a housing, and at least two antenna modules embedded at corners of the housing. Each antenna module includes an antenna carrier and an antenna radiator. The antenna carrier defines a first receiving groove and a second receiving groove opposite to each other. The antenna radiator includes a main portion and a conductive contact. The main portion is received in the first receiving groove, and the conductive contact is received in the second receiving groove. The main portion is embedded in the housing, and the conductive contact is exposed from the housing.

Abstract: An antenna system includes a ground plane, a microstrip-line coupler, a metal cover, and a main antenna. The microstrip-line coupler has a first input port, a second input port, a first output port, and a second output port. The metal cover is disposed above the microstrip-line coupler and coupled to the ground plane. The main antenna is coupled to the first output port and the second output port of the microstrip-line coupler. The metal cover is configured to reduce the interference from the microstrip-line coupler and to enhance the gain of the main antenna.

Abstract: A device for transmitting radio waves comprises an item of transmitting equipment for a telecommunications antenna, a membrane for thermally protecting the reflector, and means for attaching the thermal protection membrane to the item of equipment. The thermal protection membrane is furnished with a plurality of elastic tensioners designed to keep the thermal protection membrane stretched between a first active face of the item of transmitting equipment and space, irrespective of the thermal expansions of the membrane. The item of transmitting equipment occurs in a predetermined temperature range when the attachment means attach the membrane to the item of transmitting equipment.

Abstract: A radome not having a sandwich structure but having a canape structure is formed with an object to obtain a radome of a canape structure having a satisfactory radio property, and moreover, an excellent mechanical strength by providing a matching layer to a skin layer on an interior side of a radome. The skin layer is formed of layered glass fiber cloths and resin impregnated therein. The layered glass fiber cloths can be replaced with glass fiber mats. For the matching layer, a foamed material, such as a urethane material having a low permittivity, or a core material having a resin impregnating property can be used. A radome of a canape structure can be obtained with the skin layer and the matching layer.

Abstract: In accordance with one embodiment, a gateway node having a housing, a bracket mounted relay and wireless communication capabilities. The gateway node is connected to a pad mount transformer.

Abstract: A lightning protection system for a radome, the system comprising at least one lightning protection strip positioned on an inner wall of the radome, wherein the lightning protection strip defines, on the inner wall of the radome, a curve that is substantially perpendicular, at all points thereof, to the polarization direction of the electrical field vector radiated by an antenna across from the inner wall of the radome.

Abstract: The present invention refers to a triple-band antenna array for cellular base stations operating at a first frequency band and at a second frequency band within a first frequency range, and also at a third frequency band within a second frequency range. Said triple-band antenna array comprises a first set of radiating elements operating at the first frequency band, a second set of radiating elements operating at the second frequency band, a third set of radiating elements operating at both the third and the first frequency bands, and a fourth set of radiating elements operating at both the third and the second frequency bands. The radiating elements are arranged in such a way that at least some of the radiating elements of the first set are interlaced with at least some of the radiating elements of the third set, and at least some of the radiating elements of the second set are interlaced with at least some of the radiating elements of said fourth set.

Abstract: An enclosure for housing a radio frequency integrated device (RFID) transponder. The enclosure includes a front surface comprising a non-shielding material, a top surface, a bottom surface, a right-side surface, a left-side surface and a rear surface. The top surface, the bottom surface, the right-side surface, the left-side surface and the rear surface include a shielding material. The enclosure selectively enables and disables communication between the RFID transponder and toll collection units relative to a position of the front surface of the enclosure within a vehicle.

Abstract: The invention relates to a low dielectric loss material comprising a plurality of polyolefin tapes forming a sheet and a coating disposed onto said sheet, wherein said coating comprises an epoxy resin.

Abstract: A ruggedized electronic enclosure for in-ground installation is disclosed. In one embodiment, the ruggedized electronic enclosure comprises a top cover which is exposed above a top surface of the ground and a cylindrical base portion which is embedded within the ground. The top cover and the cylindrical base portion are configured to create a channel conveying an adhesive toward the center of the ruggedized enclosure when the top cover and the cylindrical base portion are coupled.

Abstract: A device occupying a volumetric space definable within the bounds of a substantially spherical volume for realizing isotropic radiation may include a support for supporting a plurality of multi-polarization capable antenna elements. The plurality of antenna elements may include a first antenna element oriented in a first direction, a second antenna element oriented in a second direction, and a third antenna element oriented in a third direction. The support may support the first antenna element, the second antenna element, and the third antenna element in an arrangement such that the second direction is at least substantially different than the first direction, and the third direction is at least substantially different than the first direction and the second direction. The plurality of antenna elements generally occupies a volumetric space definable within the bounds of a substantially spherical volume.

Abstract: A cylindrical-shaped enclosure having tapered ends. The enclosure includes a module having a radio disposed on a printed circuit board and an antenna connected to the PCB. The enclosure has a main piece coupled to a lower piece and to a top piece, an optionally a fourth piece coupled to the top piece. A mounting subsystem is mounted to the main piece and includes a hole configured to receive therethrough a wires that connect to the printed circuit board. The antenna is configured to rotate about an axis that extends along a longest dimension of the enclosure. The module includes a metal plate to which the antenna is directly mechanically and electrically coupled without any cable such that the wires lack any control signals for controlling the antenna. The top and/or lower pieces can house any combination of a camera, an environmental sensor, security equipment, or a lighting system.

Abstract: An antenna includes a dielectric substrate, two pairs of antenna elements engaged on opposite sides of the dielectric substrate, two feed portions and a first connection element. Each antenna elements includes a first antenna electrode and a second antenna electrode connected to the first antenna electrode. A portion of the first antenna electrode is engaged on an upper surface of the dielectric substrate. A portion of the second antenna electrode is engaged on a lower surface of the dielectric substrate. Each of the two feed portions is connected between the ground and a conducive pad formed on the dielectric substrate. The first connection element is connected between the two antenna electrodes. A length of the first connection element is one-fourth wavelength of the first antenna electrode.

Abstract: A multiple sector cell-site antenna includes a first antenna oriented to serve a first sector, the first antenna electrically connected to a first transceiver group; a second antenna oriented to serve a second sector adjacent to the first sector, the second antenna electrically connected to the first transceiver group; and a single enclosure covering both the first antenna and the second antenna. By providing at least two multiple sector cell-site antennas in a system, the total number of enclosures is reduced while providing redundancy and diversity within the cells.

Abstract: Disclosed is a circularly-polarized antenna comprising a flat conducting ground plane, a radiator, and an excitation system disposed between the radiator and the ground plane. The radiator comprises a plurality of conducting segments separated from each other by a first dielectric medium and separated from the ground plane by a second dielectric medium. The plurality of conducting segments are symmetrically disposed about an antenna axis of symmetry orthogonal to the ground plane. The excitation system comprises a flat conducting exciter patch and four excitation sources with phase differences of 0, 90, 180, and 270 degrees. The excitation sources are generated on two orthogonal printed circuit boards.