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| Number | Title | Issue Date |
| 7567149 | Subwavelength waveguide and delay line with fractal cross sections A waveguide structure is described wherein microwaves or radio-frequency waves can be guided in their propagation through channels whose cross-sections contain fractal patterns, with relevant dimensions much smaller than the wavelengths of the guided waves. A finite... | 07/28/2009 |
| 7414491 | Method and apparatus for changing the polarization of a signal A method and apparatus for changing the polarization of an input signal includes propagating a polarized input signal having orthogonal E-field components by at least one surface each having a respective surface impedance and varying at least one of the surface impe... | 08/19/2008 |
| 7361978 | Laser diode packaging A laser diode package includes a heat sink, a laser diode, and an electrically nonconductive (i.e. insulative) substrate. The laser diode has an emitting surface and a reflective surface opposing the emitting surface. The laser diode further has first and second sid... | 04/22/2008 |
| 7358833 | Method and apparatus for signal processing using electrowetting An apparatus comprising a tuning device having at least one control electrode and a ground electrode located over a substrate and an electrically conductive fluid in contact with the control and ground electrodes. The tuning device also has at least one electrical t... | 04/15/2008 |
| 7323949 | Method for conversion of waveguide modes, mode-converting arrangement and antenna arrangement The invention relates to a method for conversion of waveguide modes from a mode of type TM01 to mode of type TE11 for transmission of power within the microwave range. The invention also relates to a mode-converting arrangement and an antenna a... | 01/29/2008 |
| 7283019 | Tuneable phase shifter and/or attenuator using photoresponsive-material in a waveguide The invention relates to a tuneable phase shifter and/or attenuator comprising a waveguide having a channel and a piece of photo-responsive material (18) disposed within the waveguide along an internal wall of said channel, a light source disposed outside the... | 10/16/2007 |
| 7268650 | Phase shifting waveguide with alterable impedance walls A waveguide is disclosed that shifts the phase of the signal passing through it. In one embodiment, the waveguide has an impedance structure on its walls that resonates at a frequency lower than the frequency of the signal passing through the waveguide. This causes ... | 09/11/2007 |
| 7269197 | Controlling overspray coating in semiconductor devices A manufacturing method, in which two device bars are bonded prior to facet coating to form a stacked bar pair. In one embodiment, each of the device bars has a p-side and an n-side, each side having a plurality of bonding pads, with at least some bonding pads locate... | 09/11/2007 |
| 7214569 | Apparatus incorporating small-feature-size and large-feature-size components and method for making same An apparatus incorporating small-feature size and large-feature-size components. The apparatus comprise a strap including a substrate with an integrated circuit contained therein. The integrated circuit coupling to a first conductor disposed on the substrate. The fi... | 05/08/2007 |
| 7170919 | Diode-pumped solid-state laser gain module A laser gain device (10) holds a laser slab (60) which is pumped by pump energy from at least one diode array assembly (24). An angle at which pump energy from the diode array assembly (24) impinges the laser slab (60) is adjustabl... | 01/30/2007 |
| 7157989 | Inline waveguide phase shifter with electromechanical means to change the physical dimension of the waveguide An inline phase shifter including a waveguide having a waveguide path and one of a micro-electromechanical device and a piezoelectric device positioned sufficiently adjacent to the waveguide for changing physical dimensions of the waveguide path upon actuation of th... | 01/02/2007 |
| 7151507 | Low-loss, dual-band electromagnetic band gap electronically scanned antenna utilizing frequency selective surfaces A dual-band electromagnetic band gap (EBG) electronically scanned antenna utilizing frequency selective surfaces (FSS) uses FSS waveguide phase shifters. Each FSS waveguide phase shifter has a low-frequency phase shifter with low-frequency EBG devices on vertical wa... | 12/19/2006 |
| 7142165 | Waveguide and slotted antenna array with moveable rows of spaced posts A waveguide structure including two parallels electrically conducting ground planes (1,2), each of which includes at least one row of spaced apart electrically conducting posts (3). The rows of posts are arranged substantially parallel to one another a... | 11/28/2006 |
| 7135717 | Semiconductor switches and switching circuits for microwave The purpose of the present invention is to provide a small-sized switch attaining high isolation of not less than 80 dB, maintaining low insertion loss also in high frequencies not less than 60 GHz. A semiconductor switch according to the present invention utilizes ... | 11/14/2006 |
| 7042309 | Phase inverter and coupler assembly A circuit assembly may include one or more coupler sections, and may include a phase inverter and/or a phase shifter. A coupler section may include a phase inverter. A coupler may include first and second mutually coupled spirals disposed on opposite sides of a diel... | 05/09/2006 |
| 7038558 | Phase shifting waveguide and module utilizing the waveguides for beam phase shifting and steering A waveguide is disclosed that shifts the phase of the signal passing through it. In one embodiment, the waveguide has an impedance structure on its walls that resonates at a frequency lower than the frequency of the signal passing through the waveguide. This causes ... | 05/02/2006 |
| 7023392 | Fluid dielectric reflectarray An antenna can comprise a conductive reflecting surface (204) and a plurality of cells (202) disposed over the conductive reflecting surface. The plurality of cells can be formed from a solid dielectric material such as a low temperature cofired cerami... | 04/04/2006 |
| 7009464 | Waveguide polarizer differential phase error adjustment device A phase error adjustment device configured to connect to an end of a waveguide polarizer and correct phase errors that the waveguide polarizer might generate. In accordance with this embodiment, the phase error adjustment device comprises an aperture having a height... | 03/07/2006 |
| 6985050 | Waveguide-finline tunable phase shifter A tunable phase shifter includes a waveguide, a finline substrate positioned within the waveguide, a tunable dielectric layer positioned on the finline substrate, a first conductor positioned on the tunable dielectric layer, and a second conductor positioned on the ... | 01/10/2006 |
| 6972727 | One-dimensional and two-dimensional electronically scanned slotted waveguide antennas using tunable band gap surfaces An electronically scanned slotted waveguide antenna radiates an RF signal as a scannable beam. The antenna has radiation waveguides positioned in an array. Radiation slots in the radiation waveguides radiate the scannable beam. A feed waveguide is coupled to the rad... | 12/06/2005 |
| 6950062 | Method and structure for phased array antenna interconnect using an array of substrate slats A phased array antenna is formed from an array of apertures having walls containing phase shifter devices for phase shifting and beam steering a radiated beam of the phased array antenna. The phase shifter devices are interconnected with an interconnect structure fo... | 09/27/2005 |
| 6917162 | Traveling wave tube A slow wave circuit (10, 110) of a traveling wave tube includes a three-dimensional conductive structure (30, 130). A dielectric film (36, 136) coats selected portions of the three-dimensional conductive structure (30, 130). An outer hous... | 07/12/2005 |
| 6917266 | Microwave waveguide A microwave component has a cavity including a plurality of geometrically shaped elements therein wherein the shape profile and position of the elements in relation to the cavity act to define the guiding properties of the cavity and therefore to define operational ... | 07/12/2005 |
| 6906601 | Variable phase shifter and a system using variable phase shifter A variable phase shifter and a system for the variable phase shifter are provided. The phase shifter includes fixed phase shift elements, active devices for amplifying the outputs of the fixed phase shift elements, a combiner for combining the outputs of the active ... | 06/14/2005 |
| 6816043 | Wave-guide and a connector therefor A wave-guide having at least two connection points. In order to adapt a physical distance between these points to a variable distance between connection points of external equipment, at least one connector (20) is provided having a first connecting member ( | 11/09/2004 |
| 6812895 | Reconfigurable electromagnetic plasma waveguide used as a phase shifter and a horn antenna Phase shifting plasma electromagnetic waveguides and plasma electromagnetic coaxial waveguides, as well as plasma waveguide horn antennas, each of which can be reconfigurable, durable, stealth, and flexible are disclosed. Optionally, an energy modifying medium to re... | 11/02/2004 |
| 6757091 | Method and apparatus for phase shifting an optical beam in an optical device An apparatus and method for modulating a phase of optical beam. In one embodiment, an apparatus according to embodiments of the present invention includes a first region of semiconductor material disposed in a second region of semiconductor material. An insulating r... | 06/29/2004 |
| 6756866 | Phase shifting waveguide with alterable impedance walls and module utilizing the waveguides for beam phase shifting and steering A waveguide is disclosed that shifts the phase of the signal passing through it. In one embodiment, the waveguide has an impedance structure on its walls that resonates at a frequency lower than the frequency of the signal passing through the waveguide. This causes ... | 06/29/2004 |
| 6677838 | Coplanar waveguide with a low characteristic impedance on a silicon substrate using a material with a high dielectric constant A coplanar waveguide, which has parallel conductor strips that are arranged on a substrate and have an electrically insulating intermediate space between one another, wherein a material with a high dielectric constant is arranged on the conductor strips, ... | 01/13/2004 |
| 6664866 | Generator of circularly polarized wave The present invention aims at providing a circular waveguide polarizer with high performance and low cost. The circular waveguide polarizer is realized by arranging a plurality of side grooves 12 in a side wall of a circular waveguide 11 along the directi... | 12/16/2003 |
| 6624715 | Ultrawide-band linear-circular polarization converter In an ultrawide-band linear-circular polarization converter, in a noncircular waveguide which has negative-phase characteristics in which a phase gradually decreases in accordance with an increase in a frequency over an ultrawide-band frequency range, a d... | 09/23/2003 |
| 6611237 | Fluidic self-assembly of active antenna Fluidic self-assembly of active antenna. An embodiment that is described in the specification and drawings include a strip of substrate material having an antenna on one side, signal and power busses on the other side, and one or more channel laid out acr... | 08/26/2003 |
| 6476696 | Waveguide for microwave manipulation This invention relates to the design of a microwave component utilizing geometric shapes positioned within the channel of a waveguide structure so as to produce microwave manipulation characteristics, with associated near and far fields, whereby predeterm... | 11/05/2002 |
| 6417742 | Circular polarizer having two waveguides formed with coaxial structure A circular polarizer includes a low frequency band waveguide (fL), a high frequency band waveguide (fH) formed at the inner side of the low frequency band waveguide (fL) in a coaxial structure, and a dielectric member prov... | 07/09/2002 |
| 6356164 | Quarter wave plate polarizer with two phase-shifting portions A right circular cylindrical body of an isotropic dielectric such as a cross-linked styrene copolymer, has respective pluralities of mutually parallel grooves formed in its axial end faces, spaced apart by an intermediate portion whose dimension c is a ha... | 03/12/2002 |
| 6229407 | Method of connecting two linearly-polarized waveguides, transition plate for the connection, and assembly comprising the plate and locking means For the connection, a transition plate (11), for rotating the polarization of the waves leaving one (2) of the guides into an intermediate transition polarization, which is not parallel to the polarizations of the two guides, is inserted between the two w... | 05/08/2001 |
| 6181221 | Reflective waveguide variable power divider/combiner A reflective waveguide variable power divider/combiner comprises an orthomode tee section, which includes a section of cylindrical waveguide and a rotatable reflective phase shifter section. The rotatable reflective phase shifter section is rotatably conn... | 01/30/2001 |
| 6097264 | Broad band quad ridged polarizer A broad band waveguide polarizer having four axial ridges, one on each wall of the waveguide, is disclosed. The axial ridges are configured to provide different phase velocities for the orthogonal signal components of a linearly polarized input signal. Th... | 08/01/2000 |
| 6067047 | Electrically-controllable back-fed antenna and method for using same A user terminal (110) which comprises an electrically-controllable back-fed antenna (300, FIG. 3) is used for the formation of single and multiple beams. The electrically-controllable back-fed antenna comprises an RF power distribution/combination network... | 05/23/2000 |
| 5986382 | Surface acoustic wave transponder configuration An acoustic wave identification transponder device, having a substrate, an electroacoustic transducer generating an acoustic wave in said substrate and a set of encoding elements disposed in a path of the acoustic wave for modifying the acoustic wave, hav... | 11/16/1999 |
