FR1335403A - Antenne hélicoïdale rayonnant axialement vers l'arrière - Google Patents

Antenne hélicoïdale rayonnant axialement vers l'arrière

Info

Publication number
FR1335403A
FR1335403A FR42929A FR69042929A FR1335403A FR 1335403 A FR1335403 A FR 1335403A FR 42929 A FR42929 A FR 42929A FR 69042929 A FR69042929 A FR 69042929A FR 1335403 A FR1335403 A FR 1335403A
Authority
FR
France
Prior art keywords
helical antenna
antenna radiating
axially backwards
radiating axially
backwards
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
FR42929A
Other languages
English (en)
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Patelhold Patenverwertungs and Elektro-Holding AG
Original Assignee
Patelhold Patenverwertungs and Elektro-Holding AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Patelhold Patenverwertungs and Elektro-Holding AG filed Critical Patelhold Patenverwertungs and Elektro-Holding AG
Application granted granted Critical
Publication of FR1335403A publication Critical patent/FR1335403A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q11/00—Electrically-long antennas having dimensions more than twice the shortest operating wavelength and consisting of conductive active radiating elements
    • H01Q11/02—Non-resonant antennas, e.g. travelling-wave antenna
    • H01Q11/08—Helical antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
    • H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
    • H01Q19/12—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces wherein the surfaces are concave
    • H01Q19/15—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces wherein the surfaces are concave the primary radiating source being a line source, e.g. leaky waveguide antennas
FR42929A 1961-10-06 1962-10-04 Antenne hélicoïdale rayonnant axialement vers l'arrière Expired FR1335403A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1160061A CH391803A (de) 1961-10-06 1961-10-06 Axial rückwärtsstrahlende Wendelantenne

Publications (1)

Publication Number Publication Date
FR1335403A true FR1335403A (fr) 1963-08-16

Family

ID=4375048

Family Applications (1)

Application Number Title Priority Date Filing Date
FR42929A Expired FR1335403A (fr) 1961-10-06 1962-10-04 Antenne hélicoïdale rayonnant axialement vers l'arrière

Country Status (7)

Country Link
US (1) US3184747A (de)
CH (1) CH391803A (de)
DE (1) DE1166297B (de)
FR (1) FR1335403A (de)
GB (1) GB1012738A (de)
NL (1) NL283937A (de)
SE (1) SE320421B (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2602918A1 (fr) * 1985-08-05 1988-02-19 Tdk Corp Systeme d'antenne

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3568205A (en) * 1968-02-12 1971-03-02 Goodyear Aerospace Corp Novel helical antenna
US3623118A (en) * 1969-07-01 1971-11-23 Raytheon Co Waveguide-fed helical antenna
US4435716A (en) 1981-09-14 1984-03-06 Adrian Zandbergen Method of making a conical spiral antenna
DE3343625C2 (de) * 1983-11-19 1986-10-23 Bruker Medizintechnik Gmbh, 7512 Rheinstetten Meßkopf und Verfahren zur Aufnahme hochaufgelöster Kernspinresonanzsignale
US5212493A (en) * 1989-02-17 1993-05-18 Thomson-Lgt Laboratoire General Des Telecomm. Antenna system for reception from direct broadcasting satellites
FR2653941B1 (fr) * 1989-10-31 1992-02-28 Thomson Lgt Antenne de reception multifocale a direction de pointage unique pour plusieurs satellites.
FR2678437B1 (fr) * 1991-06-28 1994-01-28 France Telecom Antenne mixte pour reception de signaux emis simultanement par satellite et par stations terrestres, notamment pour la reception de signaux de radiodiffusion sonore numerique.
ES2121913T3 (es) * 1992-12-22 1998-12-16 Thomson Multimedia Sa Sistema de antena con alimentadores helicoidales.
WO1994016472A1 (en) 1992-12-30 1994-07-21 Thomson Consumer Electronics S.A. Helical antenna system
CA2139198C (en) * 1993-12-28 1998-08-18 Norihiko Ohmuro Broad conical-mode helical antenna
DE4443055B4 (de) * 1994-12-05 2011-07-21 VEGA Grieshaber KG, 77709 Antenneneinrichtung für ein Füllstandmeß-Radargerät
US6791500B2 (en) * 2002-12-12 2004-09-14 Research In Motion Limited Antenna with near-field radiation control
US7388559B1 (en) * 2006-12-21 2008-06-17 The Boeing Company Reflector antenna
EP2856662B1 (de) 2012-05-13 2019-08-28 Amir Khandani Drahtlose übertragung mit kanalstatusstörung
KR20150104614A (ko) * 2013-01-09 2015-09-15 트라네 앤드 트라네 아/에스 듀얼 안테나
US10177896B2 (en) 2013-05-13 2019-01-08 Amir Keyvan Khandani Methods for training of full-duplex wireless systems
US9236996B2 (en) 2013-11-30 2016-01-12 Amir Keyvan Khandani Wireless full-duplex system and method using sideband test signals
US9820311B2 (en) 2014-01-30 2017-11-14 Amir Keyvan Khandani Adapter and associated method for full-duplex wireless communication
US10312595B2 (en) 2016-01-18 2019-06-04 The Johns Hopkins University Contrawound helical antenna apparatus and method
US10333593B2 (en) * 2016-05-02 2019-06-25 Amir Keyvan Khandani Systems and methods of antenna design for full-duplex line of sight transmission
CN106252851B (zh) * 2016-09-12 2023-03-24 广东通宇通讯股份有限公司 一种高增益宽频带振子天线
US10700766B2 (en) 2017-04-19 2020-06-30 Amir Keyvan Khandani Noise cancelling amplify-and-forward (in-band) relay with self-interference cancellation
US11212089B2 (en) 2017-10-04 2021-12-28 Amir Keyvan Khandani Methods for secure data storage
US11012144B2 (en) 2018-01-16 2021-05-18 Amir Keyvan Khandani System and methods for in-band relaying

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA562302A (en) * 1958-08-26 Canadian Marconi Company Helically fed direction or aerial system
GB741897A (en) * 1953-06-17 1955-12-14 Marconi Wireless Telegraph Co Improvements in or relating to directional aerial systems
BE538147A (de) * 1954-05-28
US2919442A (en) * 1955-12-09 1959-12-29 American Electronics Antenna
US2982964A (en) * 1957-03-26 1961-05-02 Internat Telephone & Telegraph Adjustable tuning device and antenna using same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2602918A1 (fr) * 1985-08-05 1988-02-19 Tdk Corp Systeme d'antenne

Also Published As

Publication number Publication date
GB1012738A (en) 1965-12-08
DE1166297B (de) 1964-03-26
SE320421B (de) 1970-02-09
NL283937A (de) 1965-01-11
US3184747A (en) 1965-05-18
CH391803A (de) 1965-05-15

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