Abstract: A highly efficient radiation structure in a compact design is described. The structure is designed to receive over the air signals in the UHF frequency band. Unlike most of the current structures, the disclosure structure consists of an array of four radiating elements and are configured to perform an uniform reception along the horizontal plane and the elements are positioned in a circle or in a square configuration and are located near the outer edge of a circular or a square shape circuit board; the elements are efficiently combined by an unique four way power combiner which is specially designed to obtain the necessary impedance match to an input coaxial cable. The entire structure consist only a few simple parts. Namely, a circuit board with the top and bottom surfaces etched on with the radiating elements and associated feed lines. A coaxial feed line terminated with a feeding connector of the F type is provided.

Abstract: A highly efficient electronical and mechanical beam pointing vehicle antenna is disclosed. The structure is designed for a vehicle to maintain continued communication with a satellite while the vehicle is in motion. The structure is comprised of a group of left and right hand circularly polarized elements which are located and fixed to the center of the antenna structure. These feed elements are stacked and are electronically phased to obtain the elevation pointing. The feeds are wrapped around by a vane type polarizer which is designed to provide simultaneous operation of left and right hand circularly polarized signals and the radiation of the feed elements are symmetrically radiated over the entire 360 degree horizontal field of view. A very light weight mechanical driven parabolic cylindrical reflector, revolving around the feed assembly, is implemented to provide the 360 degrees azimuth coverage.

Abstract: This invention discloses a design and implementation of an X-band antenna optimized for a moving vehicle to communicate with a stationary orbit satellite. The new antenna design employs unique circuit boards that contain dipole elements, power dividers, pin diode switches and digital phase shifters. The circuit boards perform together as an array to produce high gain beams. Depending on the antenna performance needs, several antenna boards may be required. The circuit boards' dimensions are all identical containing round disks of equal diameters. The dipole radiating elements are located near the outer edge of the board. They are designed to perform circular type polarization. By increasing the diameter of the board and a number of boards, or a combination of the two, one can achieve any desired beam shape that may be required. The disclosure design approach is unique and flexible; for this reason, an eight circuit board vehicle antenna has been configured.

Abstract: This invention discloses a design and implementation of an X-band antenna optimized for a moving vehicle to communicate with a stationary orbit satellite. The new antenna design employs unique circuit boards that contain dipole elements, power dividers, pin diode switches and digital phase shifters. The circuit boards perform together as an array to produce high gain beams. Depending on the antenna performance needs, several antenna boards may be required. The circuit boards' dimensions are all identical containing round disks of equal diameters. The dipole radiating elements are located near the outer edge of the board. They are designed to perform circular type polarization. By increasing the diameter of the board and a number of boards, or a combination of the two, one can achieve any desired beam shape that may be required. The disclosure design approach is unique and flexible; for this reason, an eight circuit board vehicle antenna has been configured.

Abstract: This invention discloses a design and application of a variable beam antenna optimized for WI-HI application in data, video and voice transmission between various systems with an emphasis on medical monitoring. The subject antenna consists of a unique group of dipole radiators that are excited by zigzag feed lines and perform together as an array. This antenna is unique because it can provide various high gain beams by simply applying electrical shorts at the cross points in the feed lines. The shorts can be created mechanically or electronically. The antenna beam coverage can range from 15° to 110°- wide in H plane and maintains a constant beam width of 60° in E plane. The shorts are applied to reduce the antenna effective aperture, thereby increasing the beam width of the antenna. The current that flows to the outer dipoles are cut-off due to the shorts.

Abstract: A high performance broadband antenna for backpack and helmet application allowing data, video, and voice transmission between parties. The antenna consists of a pair of triangle shaped elements which are configured to stick on a backpack surface or place over a helmet with a coaxial cable connecting a radiating structure to the communication equipment on the body. A metal shielding performs as a ground plane and also acts as a protectant from radiation hazards to the head or body areas. The antenna is made with materials that conform to the shape of a helmet or stick directly onto a backpack surface. This design can function under multiple frequencies on UHF and S bands; its placement on a helmet receives less Interference from Its surroundings.

Abstract: This invention discloses a design and implementation of a high performance broadband antenna for backpack and helmet application allowing data, video, and voice transmission between parties. The subject antenna consists of a pair of triangle shape elements which are configured to stick on a backpack surface or place over a helmet with a coaxial cable connecting the radiating structure to the communication equipment on the body. A metal shielding surface is employed and the shielding surface performs as a ground Wane and also acts as a protectant from radiation hazards to the head or body areas. The antenna is made with materials that are accommodating and can easily conform to the shape of a helmet or sticking directly onto the backpack surface. This innovative design can function under multiple frequencies on UHF and S bands; its placement on a helmet receives less interference from its surroundings.

Abstract: This invention discloses a design and application of a variable beam antenna optimized for Wi-Fi application in data, video and voice transmission between various systems with an emphasis on medical monitoring. The subject antenna consists of a unique group of dipole radiators that are excited by zigzag feed lines and perform together as an array. This antenna is unique because it can provide various high gain beams by simply applying electrical shorts at the cross points in the feed lines. The shorts can be created mechanically or electronically. The antenna beam coverage can range from 15° to 110° wide in H plane and maintains a constant beam width of 60° in E plane. The shorts are applied to reduce the antenna effective aperture, thereby increasing the beam width of the antenna. The current that flows to the outer dipoles are cut-off due to the shorts.

Abstract: This invention discloses a design and fabrication of a high performance HDTV Antenna to receive public airwave signals. The subject antenna consists of a high efficient broadband element and a pair of reflecting surfaces. The reflecting surfaces produce a focusing effect. The backside radiation of the antenna is redirected, making it more energized to receive signals from the front side. This is a very desirable feature in a weak signal environment. The reflecting surfaces provide additional benefits in reducing unwanted multiple reflecting signals which often cause unstable pictures. The broadband radiating element composed a pair of triangular shape radiators which is excited by a new art infinite balun. With this design, it is unnecessary to reposition the antenna in order to receive all available public channels. A fixed location is generally adequate to provide good reception to all stations.

Abstract: This invention discloses a design and fabrication of a high performance HDTV Antenna to receive public airwave signals. The subject antenna consists of a high efficient broadband element and a pair of reflecting surfaces. The reflecting surfaces produce a focusing effect. The backside radiation of the antenna is redirected, making it more energized to receive signals from the front side. This is a very desirable feature in a weak signal environment. The reflecting surfaces provide additional benefits in reducing unwanted multiple reflecting signals which often cause unstable pictures. The broadband radiating element composed a pair of triangular shape radiators which is excited by a new art infinite balun. With this design, it is unnecessary to reposition the antenna in order to receive all available public channels. A fixed location is generally adequate to provide good reception to all stations.