[특허]Adaptive electronically steerable phased array

[미국특허] Adaptive electronically steerable phased array 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H04B-007/00
출원번호	US-0967572 (1978-12-08)
발명자 / 주소	Malm Robert (Los Angeles CA)
출원인 / 주소	Northrop Corporation (Los Angeles CA 02)
인용정보	피인용 횟수 : 47 인용 특허 : 1

초록 ▼

An adaptive antenna system which enhances the desired signal in the output of the system while reducing the interference from signals arriving from directions other than that of the desired signal. The antenna system operates in conjunction with a modulation/demodulation system for spreading and despreading the spectrum of the desired signal. By a series of deterministic perturbations of phase shifters or other signal varying devices attached to the antenna elements, the system measures the effects of these perturbations: (1) on the wide-band energy in the output of the antenna, prior to spectrum despreading, and (2) on the narrow-band energy following despreading, and then adjusts the phase shifters or other signal varying devices so as to enhance the desired signal while reducing the interfering signals.

대표청구항 ▼

An adaptive receiving antenna system comprising: a. a plurality of antenna elements for receiving electromagnetic signals, b. a plurality of signal varying means connected to the outputs of predetermined ones of the antenna elements for varying each of the outputs of said predetermined antenna elements, c. output combining means connected to the outputs of the signal varying means, and to the antenna elements to which no signal varying means are connected, for receiving and combining the outputs of the predetermined ones of the signal varying means and the outputs of the antenna elements to which no signal varying means are connected, d. wide-band energy measurement means, connected to the output of the output combining means, for measuring the wide-band energy therein, e. despreader means, connected to the output of the output combining means, for receiving and despreading the spectrum of the desired signal and for reducing the band-width of the signals emerging from the despreading means, f. narrow-band energy measurement means, connected to the output of the despreader means, for measuring the narrow-band energy therein, and g. controller and correlator means connected to the output of the wide-band energy measurement means and to the output of the narrow-band energy measurement means, which correlator and controller means controls each of the signal varying means to introduce variations into the outputs from the signal varying means so as to decrease the output from the wide-band energy measurement means and increase the output from the narrow-band energy measurement means.

이 특허에 인용된 특허 (1) 인용/피인용 타임라인 분석

Roberts Eugene L. (Maitland FL) Steffancin Thomas J. (Orlando FL), Steerable antenna null combiner system.
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이 특허를 인용한 특허 (47) 인용/피인용 타임라인 분석

Sievenpiper,Daniel F.; Schaffner,James H.; Tangonan,Gregory L., Adaptive beam forming antenna system using a tunable impedance surface.
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Rasheed, Irshad; Schiller, Christopher T., Adaptive transmit array for beam-steering.
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Lee, Ming; Villarroel, Wladimiro; Horiki, Yasutaka; Lee, Kwan-ho, Antenna system and method for mitigating multi-path effect.
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Lee, Ming; Villarroel, Wladimiro; Horiki, Yasutaka; Lee, Kwan-ho, Antenna system and method for mitigating multi-path effect.
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Lee, Ming; Villarroel, Wladimiro; Lee, Kwan-ho; Horiki, Yasutaka, Antenna system and method for optimizing an RF signal.
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Rasheed, Irshad; Schiller, Christopher T., Automatic high-resolution adaptive beam-steering.
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Schilling, Donald L., Base station having a set of phased array antennas.
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Schilling, Donald L., Base station having a set of phased array antennas.
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Schilling, Donald L., Base station having a set of phased array antennas.
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Schilling,Donald L., Base station having a set of phased array antennas.
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Sievenpiper,Daniel F., Compact tunable antenna.
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Gregoire, Daniel J.; Colburn, Joseph S., Conformal antennas for mitigation of structural blockage.
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Gregoire, Daniel J., Conformal surface wave feed.
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Sato Toshifumi (Tokyo JPX), DS/CDMA diversity receiver with despreading filters using combiner wherein first and second despreading filters are dela.
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Lee, Ming; Villarroel, Wladimiro; Lee, Kwan-ho; Horiki, Yasutaka, Diversity antenna system and method utilizing a threshold value.
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Lai, Anthony; Colburn, Joseph S., Electrically tunable surface impedance structure with suppressed backward wave.
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Schiller, Christopher T.; Kennedy, Jonathan, Extending beamforming capability of a coupled voltage controlled oscillator (VCO) array during local oscillator (LO) signal generation through a circular configuration thereof.
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Schiller, Christopher T., Extending beamforming capability of a coupled voltage controlled oscillator (VCO) array during local oscillator (LO) signal generation through accommodating differential coupling between VCOs thereof.
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Schiller, Christopher T., Extending beamforming capability of a coupled voltage controlled oscillator (VCO) array during local oscillator (LO) signal generation through fine control of a tunable frequency of a tank circuit of a VCO thereof.
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Schiller, Christopher T., Extending beamforming capability of a coupled voltage controlled oscillator (VCO) array during local oscillator (LO) signal generation through frequency multiplication.
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Powell Norman F. (Ilchester MD) Lee Henry E. (Columbia MD) Guillen Francisco J. (Ellicott City MD), Hybrid adaptive sidelobe canceling system.
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Sievenpiper,Daniel F., Large aperture rectenna based on planar lens structures.
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Sievenpiper,Daniel F., Large aperture rectenna based on planar lens structures.
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Gregoire,Daniel; Massey,Cameron G.; Sievenpiper,Daniel F., Large-scale adaptive surface sensor arrays.
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Gregoire, Daniel J.; Colburn, Joseph S., Low cost, 2D, electronically-steerable, artificial-impedance-surface antenna.
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Sievenpiper,Daniel F., Meta-element antenna and array.
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Mrz Gnter (Ludwigsburg DEX), Method and apparatus for obtaining antenna tracking signals.
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Levin Jeffrey A. ; Riddle Christopher C. ; Sherman Tom, Method and apparatus for time tracking.
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Bolomey Jean-Charles (Paris FRX), Method and device for focusing, on one point to be examined, the antennae of an antenna array.
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Schiller, Christopher T.; Kennedy, Jonathan, Phase shift based improved reference input frequency signal injection into a coupled voltage controlled oscillator (VCO) array during local oscillator (LO) signal generation to reduce a phase-steering requirement during beamforming.
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Donald L. Schilling, Phased array spread spectrum receiver.
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Schilling Donald L., Phased array spread spectrum system and method.
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Schilling Donald L. (Sands Point NY), Phased array spread spectrum system and method.
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Schilling Donald L. (Sands Point NY), Phased array spread spectrum system and method.
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Schilling Donald L., Phased array spread spectrum system and method5.
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Schiller, Christopher T; Shaw, Michael Joseph, Power management in an electronic system through reducing energy usage of a battery and/or controlling an output power of an amplifier thereof.
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Schaffner,James H.; Bridges,William B., RF MEMS switch with integrated impedance matching structure.
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Colburn, Joseph S.; Sievenpiper, Daniel F.; Mehta, Sarabjit, Reflectarray.
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Paschen Dean A. (Lafayette CO) Taylor ; Jr. T. H. (Louisville CO), Self-steered antenna system.
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Dixon, Thomas O., Signal distribution system.
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Shaw, Michael Joseph; Kennedy, Jonathan Lee; Livezey, Darrell Lee; Laskar, Joy, Simultaneous accommodation of a low power signal and an interfering signal in a radio frequency (RF) receiver.
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Sievenpiper,Daniel F., Single-pole multi-throw switch having low parasitic reactance, and an antenna incorporating the same.
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Sievenpiper,Daniel F., Single-pole multi-throw switch having low parasitic reactance, and an antenna incorporating the same.
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Sievenpiper,Daniel F., Steerable leaky wave antenna capable of both forward and backward radiation.
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Veysoglu, Murat E.; Jarett, Keith; Turpin, Raenaurd D., Systems and methods for interference geolocation and mitigation using a phased array receiving antenna.
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Kanamaluru, Sridhar, Ultra-wideband multi-beam adaptive antenna.
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Shkembi, Ledion, Window assembly with transparent regions having a performance enhancing slit formed therein.
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A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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[미국특허] Adaptive electronically steerable phased array 원문보기