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Class 342/371 - With electronic scanning


Subclass of Class 342 - Communications: directive radio wave systems and devices (e.g., radar, radio navigation)
Definition: Subject matter wherein a beam of radio-frequency energy
No. of patents: 249
Last issue date: 01/06/2009


1              
NumberTitleIssue Date
7474262Digital beamforming for an electronically scanned radar system
Digital beamforming is provided for use with electronically scanned radar. In an aspect, the present invention provides enhanced sensitivity, wide angle or field of view (FOV) coverage with narrow beams, minimized number of receivers, reduced sidelobes, eliminated g...
01/06/2009
7423607Switching power amplifier and DAC for an electronically-scanned array
In one embodiment, an integrated circuit antenna array is provided that includes: a low-voltage substrate; a high-voltage substrate; a digital-to-analog converter (DAC) integrated with the low-voltage substrate, the DAC being operable to receive a digital command an...
09/09/2008
7418238Mote networks using directional antenna techniques
A mote network having and/or using one or more directional antennas. ...
08/26/2008
7382311Method, computer program product and system for differentiating physical sources from second order nonlinear signal effects
A system for differentiating between a signal from a physical source and a nonlinear signal effect includes an array, a delay control element and a signal processing element. The array is configured to detect a signal at a particular location using an initial time d...
06/03/2008
7373126Receiving apparatus
The gain control signal generating unit generates a gain control signal, using a signal yielding the greatest level among signals of the respective signal processing units. The gain standardizing unit stores, in the offset storage units, offsets corresponding to gai...
05/13/2008
7372420Electronically scanned antenna with secondary phase shifters
An antenna module for an electronically scanned phased array antenna is provided. In various embodiments, the module includes a transmit/receive (T/R) module layer including a plurality of T/R modules. The module additionally includes an external phase shifter layer...
05/13/2008
7368311Method and system for fabrication of integrated tunable/switchable passive microwave and millimeter wave modules
An interconnect module and a method of manufacturing the same. The method of making an interconnect module on a substrate comprises forming an interconnect section on the substrate. The interconnect section comprises at least two metal interconnect layers separated ...
05/06/2008
7363701Method of making a heat pipe
An encapsulated heat pipe is made by placing a removable elongated solid partially within a mold, filling the mold with a solid dielectric material, and removing the elongated solid from the dielectric material defining an elongated cavity that extends within the so...
04/29/2008
7355492Electronically controlled hybrid digital and analog phase shifter
The inventions presented herein provide a electronically controlled phase shifters that incorporate analog and digital phase shift architectures in a novel manner that realizes the best advantages of each architecture. This combination of complementary phase shift a...
04/08/2008
7342528Circuit and method for reducing electromagnetic interference
A spread spectrum system having a self-oscillating delay-line digital pulse width modulator and a method for mitigating electromagnetic interference. The spread spectrum system has a pseudo-random pattern generator connected to a digital-to-analog converter, which i...
03/11/2008
7340277Adaptive antenna for controlling the weighting on a plurality of antenna elements
An optical subscriber system according to the present invention has an adaptive antenna having a plurality of antenna elements, for controlling the weighting on the antenna elements thereby to radiate beams that are adapted to radio wave environments, a position est...
03/04/2008
7327797Orthogonal frequency division multiplexing (OFDM) receiving device for forming beam with uneven width by channel property, communication device using the same, and method thereof
An OFDM receiving device for adjusting a beam formation azimuth through a plurality of antennas, a communication device using the same, and a method thereof. The OFDM communication device having a plurality of individually-aligned antennas includes a receiving signa...
02/05/2008
7324043Phase shifters deposited en masse for an electronically scanned antenna
A system and method for an electronically scanned antenna is provided in which phase shifters are deposited en masse along with other electronically scanned antenna components on a wafer scale substrate using a thin film process. Alternative wafer scale sizes may be...
01/29/2008
7317898Mote networks using directional antenna techniques
A mote network having and/or using one or more directional antennas. ...
01/08/2008
7317916Stratospheric-based communication system for mobile users using additional phased array elements for interference rejection
A communication system has a stratospheric platform with a payload controller and a phased array antenna having a plurality of main array elements for generating a plurality of communication beams and a plurality of auxiliary elements for canceling interference betw...
01/08/2008
7315584Coherent receiver
A coherent receiver receives a set of signals which are spaced in phase, or phase and polarization, and a reference signal. The receiver processes the set of signals to determine which of the set of signals has a predetermined association (e.g. closest in phase) wit...
01/01/2008
7315276Beam compression radar
A concept is described for broadening the beam of a phased array radar antenna to provide continuous illumination of all radar targets within the search space, and this beam is compressed upon reception to realize the angular resolution that is possible with the ant...
01/01/2008
7305235Antenna directivity control method and radio apparatus
A connection request signal issued from a terminal (PS2) corresponding to a new call and received by an array antenna (2) is supplied to an adaptive array (14) and a parameter estimating unit (15). The parameter estimating unit (15...
12/04/2007
7280848Active array antenna and system for beamforming
An active antenna array for use in a beamforming antenna system. The antenna array includes multicarrier power amplifiers coupled to each antenna element wherein the outputs of the multicarrier power amplifiers are linearized. The antenna array communicates with a b...
10/09/2007
7277730Method of allocating radio resources in telecommunication system, and telecommunication system
The invention relates to a method of allocating radio resources and a telecommunication system including a base station and user equipment. The base station includes a beam forming device configured to form at least two primary beams for signal reception. The antenn...
10/02/2007
7276990Single-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
7271763Hybrid-phased communication array
A communication module is provided with a Transmit/Receive (T/R) element fabricated from psuedomorphic HEMT, High Electron Mobility Transistor technology (PHEMT). The T/R element drives multiple Radio Frequency MEMS switch-based phasing elements. Each of the phasing...
09/18/2007
7268643Apparatus, system and method capable of radio frequency switching using tunable dielectric capacitors
An embodiment of the present invention provides an apparatus, comprising a radio frequency switch capable of using tunable dielectric capacitors as the switching element. The apparatus may further comprise a cross connector connecting a plurality of ports and wherei...
09/11/2007
7262729Radio detection and ranging intrusion detection system
A radar system having a processor, a waveform generator, a plurality of antenna interfaces, a set of first antennas configured to transmit a waveform, and a set of second antennas configured to receive a reflected waveform is disclosed. The waveform generator and an...
08/28/2007
7263340PLL circuit having a multi-band oscillator and compensating oscillation frequency
A semiconductor integrated circuit device for communication is provided with a PLL circuit or the like formed therein, the PLL circuit which is capable of realizing the compensation of fluctuation due to temperature change, the inhibition of increase in the chip are...
08/28/2007
7257418Rapid user acquisition by a ground-based beamformer
A method for rapid acquisition of a specific subscriber by a ground-based beamformer includes the steps of defining a coverage area as an arrangement of a plurality of cells wherein one of the plurality of cells includes a specific subscriber; defining a partition o...
08/14/2007
7253782Phase shifting device
This invention relates to a phase shifting device, which generally comprises of rigid chassis, in the form of an aluminum plate, which can form a ground plane for feed lines (12) printed on a printed circuit board (16), which is mounted on the chassis,...
08/07/2007
7253699RF 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
7245269Adaptive 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
7242937Mobile communication terminal apparatus
A mobile communication terminal apparatus which performs radio communication with base stations using an adaptive array antenna which obtains an antenna output by multiplying output signals from the respective antenna elements of an array antenna by weighting factor...
07/10/2007
7239885Initial downlink transmit power adjustment for non-real-time services using dedicated or shared channel
A method for initial downlink transmit power adjustment for non-real time services in a wireless communications network begins by estimating an initial downlink transmit power level for non-real-time services. The estimated power level is then compared with a thresh...
07/03/2007
7233433Self-reference locking of optical coherence by single-detector electronic-frequency tagging
A coherent laser beam combining system wherein the output of a single master oscillator is split into a plurality of signals, the signals are electronically modulated at unique frequencies. One signal is designated a reference signal while the remaining signals are ...
06/19/2007
7230928Data transfer method
The invention relates to a radio system including transceivers. One of the transceivers includes, for instance, a device for comparing a parameter representing signal quality measured from the received signal with at least one threshold value and a device for determ...
06/12/2007
7224717System and method for cross correlation receiver
A system and method for detecting signals. A system includes a first antenna configured to receive at least a first input signal and generate at least a first received signal, and a second antenna configured to receive at least a second input signal and generate at ...
05/29/2007
7215954Resource allocation method for multi-platform communication system
A mobile wireless communications system including a plurality of individual transponding nodes of various types, all in communication with a central processing hub. A local user signal is processed by the central processing hub and radiated through multiple paths to...
05/08/2007
7215298Extendable/retractable antenna calibration element
An antenna array coacts with a ground plane for radiation. Calibration of the array is accomplished with the aid of one or more extensible calibration antenna elements, such as monopole antenna elements. Each calibration monopole is ordinarily retracted below the gr...
05/08/2007
7212347Reflective illumination system
This invention discloses a reflective illumination system for supplying an optical radiation beam along a folded path for illuminating a planar object. The system includes a radiation source, and two facing parabolic dish-shaped arrays of parabolic or dished reflect...
05/01/2007
7212789Tunable duplexer
The method and apparatus herein identifies tunable duplexer in a communication system. The tunable duplexer includes a tunable receiver filter, a tunable transmitter filter, a variable receiver phase shifter, and variable transmitter phase shifter. Each filter and p...
05/01/2007
7205936Transmitting and receiving apparatus and method in adaptive array antenna system capable of real-time error calibration
Disclosed are a transmitting and receiving apparatus and method in an adaptive array antenna system capable of real-time calibration. Transfer functions in the transmitting and receiving apparatus are estimated by injecting a calibration signal to each of transmit a...
04/17/2007
7197091Direct conversion receiver with direct current offset correction circuitry
A direct conversion circuit that includes an in-phase and quadrature-phase feedback path that reduces Direct Current (DC) offset. Each feedback path includes a compensating mixer that generates an error correction voltage that is passed through a loop gain circuit a...
03/27/2007
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