Abstract: A stripline antenna feed network is described. The stripline antenna feed network may comprise a first stripline layer comprising one or more reactive splitters and one or more matched splitters; and a second stripline layer comprising one or more reactive splitters. A method of manufacturing a stripline antenna feed network may comprise operably coupling a first stripline layer comprising one or more reactive splitters and one or more matched splitters to a second stripline layer comprising one or more reactive splitters.

Abstract: The present invention is a multi-element anti-jamming (A/J) antenna array. The antenna array includes a first antenna assembly configured for being fuse-mounted a first distance from an aft end of at least one of an artillery shell and a munition. The antenna array further includes a second antenna assembly configured for being fuse-mounted a second distance from an aft end of at least one of the artillery shell and the munition, the second distance being lesser than the first distance. Further, the antenna array includes multi-band functionality.

Abstract: The present invention is a multi-element anti-jamming (A/J) antenna array. The antenna array includes a first multi-band GPS edge-slot antenna and a second multi-band GPS edge-slot antenna. The first edge-slot antenna and the second edge-slot antenna are configured for implementation within at least one of an artillery shell and a munition. The first edge-slot antenna and the second edge-slot antenna are each further configured for supporting L-band frequencies.

Abstract: A multi-element anti-jamming (A/J) antenna array is disclosed. The multi-element anti-jamming (A/J) array may include a circularly-polarized edge slot antenna and a dielectric resonator antenna. The circularly-polarized edge slot antenna and the dielectric resonator antenna are configured for implementation within an artillery shell, munition, or the like. The circularly-polarized edge slot antenna may be a gun-hard, embedded GPS antenna having an on-axis phase center. Further, the circularly-polarized edge slot antenna may have a forward-looking radiation pattern.

Abstract: The present invention is a device which includes an antenna and circuitry. The antenna may receive a circularly-polarized signal as first and second linearly-polarized signals. The circuitry is connected to the antenna and is configured for combining the first and second linearly-polarized signals to produce at least two reception patterns. The reception patterns are created by summing the first and second linearly-polarized signals via phase shifting. The reception patterns are optimized for at least two substantially different directional orientations. Further, the antenna may simultaneously allow/provide spec-compliant Global Positioning System operation and spec compliant Height of Burst operation.

Abstract: The present invention is a device which includes an antenna and circuitry. The antenna may receive a circularly-polarized signal as first and second linearly-polarized signals. The circuitry is connected to the antenna and is configured for combining the first and second linearly-polarized signals to produce at least two reception patterns. The reception patterns are created by summing the first and second linearly-polarized signals via phase shifting. The reception patterns are optimized for at least two substantially different directional orientations. Further, the antenna may simultaneously allow/provide spec-compliant Global Positioning System operation and spec compliant Height of Burst operation.

Abstract: The present invention is a folded monopole antenna assembly. The folded monopole antenna assembly includes a dielectric substrate, the dielectric substrate being configured for receiving at least one input. The folded monopole antenna assembly further includes a folded monopole antenna. The folded monopole antenna is configured for being connected with the dielectric substrate. Further, the folded monopole antenna includes at least one reactive circuit. The folded monopole antenna is further configured for receiving a signal via a received input included in the at least one received input. The antenna assembly is configured for implementation within an artillery shell and/or a munition.

Abstract: The present invention is a Radio Frequency (RF) apparatus. The RF apparatus may include a layer of photoconductive material. The RF apparatus may further include a plurality of conductive patches which are disposed within the layer of photoconductive material. The RF apparatus may further include a generating layer. The generating layer may be operatively coupled to the layer of photoconductive material and may be configured for generating light. The generating layer may further be configured for providing the generated light to the layer of photoconductive material. The generated light may be configurable for being provided at a selectable intensity and in a selectable pattern for causing the layer of photoconductive material to be a dynamically controllable optical switch. The dynamically controllable optical switch may be configured for providing a connection between conductive patches included in the plurality of conductive patches.

Abstract: The present invention is an improved antenna system. In an embodiment of the invention, the antenna system of the present invention may be a high-gain, low-profile wide-band antenna. Advantageously, the antenna system of the present invention may include a plate with reflecting elements to form a reflectarray antenna suitable for mounting on an aircraft. The reflectarray antenna of the present invention may be formed from a planar array of waveguides which may operate as a low loss, wide-band reflecting elements. Individual waveguides may be designed to scatter an incident field while impressing appropriate phase shifts in order to form a plane wavefront at the array aperture to produce a desired output signal. Waveguides may include ridges to employ vertical and horizontal polarization across a wide bandwidth operable at a high frequency, such as 10 GHz to 30 GHz.

Abstract: The present invention is a system including a first transmission line oriented in a first plane and a second transmission line oriented in a second plane. Both the first transmission line and the second transmission line include a pair of rigid substrate layers, a pair of flexible substrate layers and a trace portion, the trace portion being located between the pair of flexible substrate layers, the pair of flexible substrate layers being located between the pair of rigid substrate layers. The system further includes a transition transmission line which is connected between the first transmission line and the second transmission line. The transition transmission line includes a pair of flexible substrate layers and a trace portion, the trace portion of the transition transmission line being located between the pair of flexible substrate layers of the transition transmission line.

Abstract: The present invention is a frequency scanned waveguide antenna including a plurality of radiating waveguides configured as a flat plate array, each radiating waveguide including an enclosure having a front wall and a back wall opposite the front wall, the front wall including a slot configured for radiating and receiving an electromagnetic signal.

Abstract: The present invention is an improved antenna system. In an embodiment of the invention, the antenna system of the present invention may be a dielectric resonator antenna which may include a dielectric cap that may surround a plurality of feed probes. The antenna system may be suitable for coupling to a projectile whereby the dielectric cap forms a front end, or nose, of the projectile. The plurality of feed probes may produce orthogonal vector components of a field to provide circular polarization. Additionally, feed probes may be optimally spaced within the dielectric cap to ensure the phase center of the antenna system may be co-located with a platform axis of rotation whereby no carrier phase rollup compensation may be required.

Abstract: The present invention is directed to a fuze application capable of GPS (Global Positioning System) and proximity radar functionality by co-locating a proximity radar antenna with a GPS DRA (Dielectric Resonator Antenna) fuze. The GPS DRA fuze has a HE11? mode structure resulting in an E-field null at the center. The monopole proximity radar antenna is mounted in the E-field null center and is thus electrically isolated from the GPS DRA fuze. The high dielectric constant permits the GPS DRA fuze to operate in the L1 frequency and the electrically shortened proximity radar antenna to resonate in the C-Band within a small form factor. The GPS DRA fuze maintains a forward-looking CP (circular polarization) pattern while proximity antenna maintains a desirable monopole pattern. Nesting allows mounting of both GPS and proximity radar antennas on the fuze nose while reducing the total space occupied.

Abstract: A low-loss, low-profile dual-polarization slotted waveguide antenna includes one or more waveguides having a characteristic wavelength. Radiation apertures comprised of a waveguide slot pairs are formed in each or the waveguides of the antenna. Each waveguide slot pair includes a first waveguide slot and a second waveguide slot which are configured for inducing a circularly polarized (CP) radiated field in the waveguide. The waveguide slots of each waveguide slot pair may be generally crescent-shaped and spaced a distance of at least approximately one-fourth of the characteristic wavelength from each other. The waveguide slots may further be positioned for allowing the antenna to receive and/or radiate both left-hand and right-hand circularly polarized fields (LHCP and RHCP) and for providing control of the sense of a circularly polarized (CP) field radiated by the antenna by changing the direction of incidence of an electromagnetic source wave propagated in the waveguide.

Abstract: The present invention is a low-loss polarized antenna for satellite communications and polarimetric weather radar. The antenna may comprise: (a) a microstrip patch antenna, (b) a waveguide, and (c) a coupling interface between the antenna and waveguide. The microstrip patch antennas may individually comprise: (i) a patch radiator having a defined area, and (ii) an associated microstrip. In a further embodiment of the invention, an antenna array is presented. The antenna array may comprise: (a) a plurality of microstrip antennas, and (b) a plurality of waveguides. The antenna array may further comprise: (c) a waveguide combiner. The microstrip patch antennas may individually comprise: (i) a patch radiator having a defined area, and (ii) an associated microstrip. In still a further embodiment of the invention, a method for the manufacturing of an antenna is presented. The method may comprise the step: (a) operably coupling a microstrip patch antenna to a waveguide.