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| Number | Title | Issue Date |
| 8184057 | Wideband composite polarizer and antenna system A composite polarizer including a first polarizer having a plurality of parallel metal vanes and a second polarizer having a plurality of parallel layers of dielectric material is provided. The first polarizer is disposed on an axis, and has a phase advance orientat... | 05/22/2012 |
| 8164532 | Circular polarized compound loop antenna Embodiments provide single-sided and multi-layered circular polarized, self-contained, compound loop antennas (circular polarized CPL). Embodiments of the CPL antennas produce circular polarized signals by using two electric field radiators physically oriented ortho... | 04/24/2012 |
| 8106841 | Antenna structure An antenna structure consists of a substrate, a radiation element, a signal feeding element, and a grounding element. The radiation element includes a first radiator and a second radiator coupled to the first radiator, wherein the first radiator is identical to the ... | 01/31/2012 |
| 8077103 | Cup waveguide antenna with integrated polarizer and OMT A cup waveguide antenna with integrated polarizer and OMT for simultaneously communicating left and right hand circularly polarized electromagnetic waves is adjustable to obtain efficient propagation and reception of electromagnetic waves. The antenna includes a cir... | 12/13/2011 |
| 7990328 | Conductor having two frequency-selective surfaces An antenna having two frequency-selective surfaces is disclosed. The antenna includes a first frequency-selective surface (FSS) having multiple holes to form a mesh, a second FSS having a multiple holes to form a mesh, and a perfect electric conductor located betwee... | 08/02/2011 |
| 7876278 | Dual-feed antenna The present invention relates to a dual-feed antenna. The invention provides an antenna comprising first and second electromagnetic radiation paths which join to form a common third electromagnetic radiation path, wherein the first path is rotatable with respect to ... | 01/25/2011 |
| 7847748 | Single input circular and slant polarization selectivity by means of dielectric control An antenna and a method of creating multiple polarization states in an antenna comprising providing to the antenna a single power input, dividing the power received from the single power input, and transmitting the divided power to a radiating element via a pluralit... | 12/07/2010 |
| 7737899 | Electrically-thin bandpass radome with isolated inductive grids A bandpass radome is described including inductive layers comprising periodic conductive grids. First and second capacitive patch layers may be disposed above, and third and fourth capacitive patch layers may be disposed below the inductive layer to realize a 2-pole... | 06/15/2010 |
| 7564419 | Wideband composite polarizer and antenna system A composite polarizer including a first polarizer having a plurality of parallel metal vanes and a second polarizer having a plurality of parallel layers of dielectric material is provided. The first polarizer is disposed on an axis, and has a phase advance orientat... | 07/21/2009 |
| 7436370 | Device and method for polarization control for a phased array antenna A method of configuring a phased array antenna having a plurality of radiators, each said radiator elements capable of radiating or receiving signals in one of two orthogonal polarizations determined to achieve a pseudo-random mix of horizontally and vertically pola... | 10/14/2008 |
| 7429962 | Millimeter-wave transreflector and system for generating a collimated coherent wavefront A planar multi-layer transreflector for generating collimated coherent energy comprises one or more of insulating layers between two or more metallic layers. The transreflector substantially reflects a cross-polarized component of an incident millimeter-wave signal ... | 09/30/2008 |
| 7430397 | Radio repeater and radio relay transmission method A radio repeater including at least first and second relay systems, each including a reception antenna configured to receive a radio signal, a loop interference suppressor, connected to the reception antenna, configured to suppress a loop interference signal in the ... | 09/30/2008 |
| 7423608 | High impedance electromagnetic surface and method A high impedance surface (300) has a printed circuit board (302) with a first surface (314) and a second surface (316), and a continuous electrically conductive plate (319) disposed on the second surface (316) of the printed... | 09/09/2008 |
| 7385552 | Real-time, cross-correlating millimeter wave imaging system using dual pill-box antennas A method and apparatus are disclosed for forming an image from millimeter waves. A field of view scanned using two geometrically orthogonal, intersecting copolarized fan beams (110, 120) to receive millimeter wave radiation. The received millimeter wave radia... | 06/10/2008 |
| 7372424 | High power, polarization-diverse cloverleaf phased array A phased array antenna includes a substrate, and multiple radiating elements conformally mounted as micro-strip on the substrate. Each of the radiating elements is of a triangular shape, and four of the radiating elements are arranged to form a crossed bowtie clover... | 05/13/2008 |
| 7358900 | Symmetric-slot monopole antenna A symmetric-slot monopole antenna is provided, including a metallic board. Formed on the metallic board are a ground connection part to provide a ground circuit for the monopole antenna and a radiation part formed integrally on the ground connection part to receive ... | 04/15/2008 |
| 7355554 | Method of producing a photonic bandgap structure on a microwave device and slot type antennas employing such a structure The invention relates to a method of producing a photonic bandgap structure on a slot-type microwave device which is produced on a metallized substrate. According to the invention, periodically-spaced patterns are formed on the surface of the aforementioned substrat... | 04/08/2008 |
| 7352991 | Satellite signal distribution systems Various configurations and equipment are described for providing satellite television programming from multiple satellite antennas to receivers, particularly to receivers located in apartments within a multiple-dwelling unit and having one or more satellite televisi... | 04/01/2008 |
| 7351120 | Adjustable impedance electrical connector Disclosed is an adjustable electrical connector. The connector includes a moveable structure including a plurality of return signal conductors disposed on a moveable block, and a fixed structure including a plurality of signal conductors. Each signal return conducto... | 04/01/2008 |
| 7339542 | Ultra-broadband antenna system combining an asymmetrical dipole and a biconical dipole to form a monopole An ultra-broadband antenna system is disclosed. The antenna system is a single tubular antenna structure comprising an asymmetrical dipole fed with a biconical dipole. The biconical dipole covers the high frequency spectrum, while the asymmetrical dipole covers inte... | 03/04/2008 |
| 7332982 | Waveguide diplexer of electric plane T-junction structure with resonant iris A waveguide diplexer having an electric plane T-junction structure with a resonant iris is disclosed. The waveguide includes: a waveguide having a predetermined shaped cross section; a transmitting filter for preventing to generate a harmonic band and a higher mode ... | 02/19/2008 |
| 7322233 | Level meter with a waveguide and a wave adapter The invention relates to a level meter with a waveguide for guiding an electromagnetic wave, such that the waveguide is designed as a hollow conductor and has a forward terminal section; with a wave adapter of a dielectrical material, such that the wave adapter has ... | 01/29/2008 |
| 7315728 | Polarized wave measuring apparatus, and antenna characteristic measuring apparatus and radio wave measuring apparatus using the same A phase shift section phase-shifts the second band-restricted signal to a first phase-shifted signal and a second phase-shifted signal having a phase that is different from the phase of the first phase-shifted signal by 90 degrees. A first signal mixing section mixe... | 01/01/2008 |
| 7309842 | Shielded monolithic microplasma source for prevention of continuous thin film formation A monolithic microplasma source includes a dielectric substrate having an outer surface that is exposed to a time varying electric field. A gap layer is positioned on an inner surface of the dielectric substrate. A shield including a slit is positioned on the gap la... | 12/18/2007 |
| 7304617 | Millimeter-wave transreflector and system for generating a collimated coherent wavefront A planar multi-layer transreflector for generating collimated coherent energy comprises one or more of insulating layers between two or more metallic layers. The transreflector substantially reflects a cross-polarized component of an incident millimeter-wave signal ... | 12/04/2007 |
| 7301493 | Meta-materials based upon surface coupling phenomena to achieve one-way mirror for various electro-magnetic signals A one-way reflective sensor shield with an increased bandwidth meta-materials coating is provided which substantially reduces or eliminates deleterious electronic signatures and backscattering. The one-way reflective sensor shield with meta-materials coating operate... | 11/27/2007 |
| 7295170 | Waterproof mechanism for satellite antenna A waterproof mechanism for a satellite antenna is to separate a waterproof cover of the known technology into two components of a fixing cover and a thin wall cap used for compressing an O-ring, cause the thin wall cap and the O-ring to be combined closely and stabl... | 11/13/2007 |
| 7295169 | Antenna probe having antenna portion, low noise converter with antenna probe and method of connecting antenna probe having antenna portion An antenna probe includes an antenna portion having at least a part arranged inside a waveguide, and a connecting portion for connection with a micro-strip line, the connecting portion has a connecting surface to be connected to the micro-strip line, and the connect... | 11/13/2007 |
| 7277061 | Single aperture monopulse antenna An antenna comprises a polarizer, a phasing network and a field radiating element such as a horn. The polarizer and phasing network generate a plurality of phase shifted circularly polarised waves which are superimposed to produce multiple antenna field patterns fro... | 10/02/2007 |
| 7276990 | Single-pole multi-throw switch having low parasitic reactance, and an antenna incorporating the same A switch arrangement comprises a plurality of MEMS switches arranged on a substrate about, and close to, a central point, each MEMS switch being disposed on a common imaginary circle centered on the central point. Additionally, and each MEMS switch is preferably spa... | 10/02/2007 |
| 7259640 | Miniature RF and microwave components and methods for fabricating such components RF and microwave radiation directing or controlling components are provided that may be monolithic, that may be formed from a plurality of electrodeposition operations and/or from a plurality of deposited layers of material, that may include switches, inductors, ant... | 08/21/2007 |
| 7256753 | Synthesis of metamaterial ferrites for RF applications using electromagnetic bandgap structures By configuring a high impedance frequency selective surface (HZ-FSS) structure for the appropriate values of surface impedance (surface resistance and surface reactance), a high frequency artificial ferrite metamaterial can be synthesized with almost any desired val... | 08/14/2007 |
| 7253699 | RF MEMS switch with integrated impedance matching structure An impedance matching structure for a RF MEMS switch having at least one closeable RF contact in an RF line, the impedance matching structure comprising a protuberance in the RF line immediately adjacent the RF contact that forms one element of a capacitor, the othe... | 08/07/2007 |
| 7253780 | Steerable leaky wave antenna capable of both forward and backward radiation Leaky wave antenna beam steering that is capable of steering in a backward direction, as well as further down toward the horizon in the forward direction than was previously possible, and also directly toward zenith. The disclosed antenna and method involve applying... | 08/07/2007 |
| 7245269 | Adaptive beam forming antenna system using a tunable impedance surface A method of and apparatus for beam steering. A feed horn is arranged so that the feed horn illuminates a tunable impedance surface comprising a plurality of individually tunable resonator cells, each resonator element having a reactance tunable by a tuning element a... | 07/17/2007 |
| 7242352 | Multi-band or wide-band antenna A monopole-type antenna for multi- or wide-band use to transmit or receive radio frequency electromagnetic energy. A feed point, provides energy into the antenna or receives energy from the antenna. A driven radiating section includes a first top-loading element and... | 07/10/2007 |
| 7239219 | Miniature RF and microwave components and methods for fabricating such components RF and microwave radiation directing or controlling components are provided that may be monolithic, that may be formed from a plurality of electrodeposition operations and/or from a plurality of deposited layers of material, that may include switches, inductors, ant... | 07/03/2007 |
| 7236142 | Electromagnetic bandgap device for antenna structures An electromagnetic bandgap device is mountable on a RF disturbing structure of an antenna to minimize signal field disturbance imparted thereby. The RF disturbing structure is oriented in a direction substantially parallel to a path of travel of an antenna signal an... | 06/26/2007 |
| 7236681 | Feed assembly for multi-beam antenna with non-circular reflector, and such an assembly that is field-switchable between linear and circular polarization modes A feed assembly for an antenna having a non-circular reflector, in which the feed assembly includes a feed horn capable of correcting the distortions of circularly polarized signals caused by the non-circular reflector profile, and wherein the feed horn is coupled w... | 06/26/2007 |
| 7236138 | Externally powered negatively refracting photonic bandgap medium An electromagnetic medium is described, the electromagnetic medium comprising a periodic array patterned to provide at least one photonic bandgap and to provide negative refraction for incident radiation at an operating frequency lying within the at least one photon... | 06/26/2007 |
