FR2455803A1 - Cornet a rainures de differentes profondeurs et antenne comportant un tel cornet - Google Patents

Cornet a rainures de differentes profondeurs et antenne comportant un tel cornet

Info

Publication number
FR2455803A1
FR2455803A1 FR7911316A FR7911316A FR2455803A1 FR 2455803 A1 FR2455803 A1 FR 2455803A1 FR 7911316 A FR7911316 A FR 7911316A FR 7911316 A FR7911316 A FR 7911316A FR 2455803 A1 FR2455803 A1 FR 2455803A1
Authority
FR
France
Prior art keywords
grooves
horn
mouth
wall
frequency bands
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.)
Granted
Application number
FR7911316A
Other languages
English (en)
French (fr)
Other versions
FR2455803B1 (OSRAM
Inventor
Nhu Bui-Hai
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.)
Thales SA
Original Assignee
Thomson CSF SA
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 Thomson CSF SA filed Critical Thomson CSF SA
Priority to FR7911316A priority Critical patent/FR2455803A1/fr
Publication of FR2455803A1 publication Critical patent/FR2455803A1/fr
Application granted granted Critical
Publication of FR2455803B1 publication Critical patent/FR2455803B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/02—Waveguide horns
    • H01Q13/0208—Corrugated horns
    • H01Q13/0216—Dual-depth corrugated horns

Landscapes

  • Waveguide Aerials (AREA)
FR7911316A 1979-05-04 1979-05-04 Cornet a rainures de differentes profondeurs et antenne comportant un tel cornet Granted FR2455803A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7911316A FR2455803A1 (fr) 1979-05-04 1979-05-04 Cornet a rainures de differentes profondeurs et antenne comportant un tel cornet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7911316A FR2455803A1 (fr) 1979-05-04 1979-05-04 Cornet a rainures de differentes profondeurs et antenne comportant un tel cornet

Publications (2)

Publication Number Publication Date
FR2455803A1 true FR2455803A1 (fr) 1980-11-28
FR2455803B1 FR2455803B1 (OSRAM) 1983-03-11

Family

ID=9225060

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7911316A Granted FR2455803A1 (fr) 1979-05-04 1979-05-04 Cornet a rainures de differentes profondeurs et antenne comportant un tel cornet

Country Status (1)

Country Link
FR (1) FR2455803A1 (OSRAM)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4507665A (en) * 1981-06-11 1985-03-26 Thomson-Csf Primary source with frequency re-utilization
WO1985002945A1 (en) * 1983-12-27 1985-07-04 TELECOMUNICAÇO^ñES BRASILEIRAS S/A - TELEBRÁS Transition between a continuous and a corrugated circular waveguides for efficient launch of signals in two frequency bands
US4777457A (en) * 1983-10-25 1988-10-11 Telecomunicacoes Brasileiras S/A - Telebras Directional coupler for separation of signals in two frequency bands while preserving their polarization characteristics
JP2917295B2 (ja) 1989-05-12 1999-07-12 日本電気株式会社 コルゲートホーン
WO2003100907A1 (es) * 2002-05-24 2003-12-04 Universidad Publica De Navarra Antena de bocina que combina corrugaciones horizontales y verticales

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2525358A1 (de) * 1975-04-11 1976-10-14 Marconi Co Ltd Geriffelte trichterstrahler
FR2331165A1 (fr) * 1975-11-04 1977-06-03 Thomson Csf Cornet exponentiel et antenne comportant un tel cornet
DE2616125A1 (de) * 1976-04-13 1977-10-20 Licentia Gmbh Breitbandiger hybridmodenwandler

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2525358A1 (de) * 1975-04-11 1976-10-14 Marconi Co Ltd Geriffelte trichterstrahler
FR2331165A1 (fr) * 1975-11-04 1977-06-03 Thomson Csf Cornet exponentiel et antenne comportant un tel cornet
DE2616125A1 (de) * 1976-04-13 1977-10-20 Licentia Gmbh Breitbandiger hybridmodenwandler

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4507665A (en) * 1981-06-11 1985-03-26 Thomson-Csf Primary source with frequency re-utilization
US4777457A (en) * 1983-10-25 1988-10-11 Telecomunicacoes Brasileiras S/A - Telebras Directional coupler for separation of signals in two frequency bands while preserving their polarization characteristics
WO1985002945A1 (en) * 1983-12-27 1985-07-04 TELECOMUNICAÇO^ñES BRASILEIRAS S/A - TELEBRÁS Transition between a continuous and a corrugated circular waveguides for efficient launch of signals in two frequency bands
US4680558A (en) * 1983-12-27 1987-07-14 Telecomunicacoes Brasileiras S/A - Telebras Corrugated transition device for use between a continuous and a corrugated circular waveguide with signal in two different frequency bands
JP2917295B2 (ja) 1989-05-12 1999-07-12 日本電気株式会社 コルゲートホーン
WO2003100907A1 (es) * 2002-05-24 2003-12-04 Universidad Publica De Navarra Antena de bocina que combina corrugaciones horizontales y verticales
ES2204288A1 (es) * 2002-05-24 2004-04-16 Universidad Publica De Navarra. Antena de bocina que combina corrugaciones horizontales y verticales.
ES2204288B1 (es) * 2002-05-24 2005-07-16 Universidad Publica De Navarra. Antena de bocina que combina corrugaciones horizontales y verticales.
US7091923B2 (en) 2002-05-24 2006-08-15 Universidad Publica De Navarra Horn antenna combining horizontal and vertical ridges

Also Published As

Publication number Publication date
FR2455803B1 (OSRAM) 1983-03-11

Similar Documents

Publication Publication Date Title
US3887031A (en) Dual-range sound absorber
GB1406844A (en) Sound absorbing panels
GB1533153A (en) Multi-resonant surface wave resonator
ES2003033A6 (es) Un silenciador para ser montado en conexion con al menos un tubo de escape y con al menos un tubo de cola de un vehiculo
ES470658A1 (es) Dispositivo transductor electro-acustico reversible
GB1495147A (en) Surface acoustic wave devices
GB1506100A (en) Corrugated horn with a low stationary wave ratio
FR2455803A1 (fr) Cornet a rainures de differentes profondeurs et antenne comportant un tel cornet
GB1490883A (en) Acoustic surface wave transducers and devices
JPS5528678A (en) Reed screen shape electrode
FR2349968A1 (fr) Guide d'ondes a acces lateral et multiplexeur-demultiplexeur muni d'un tel guide
SU532919A1 (ru) Волноводный аттенюатор с фиксированным ослаблением
SU685087A1 (ru) Возбудитель рабочей волны круглого полого диэлектрического волновода
Lubman Distribution of reverberant sound in large rooms
JPS6439101A (en) Reflector antenna
JPS56138302A (en) Directional coupler for microstrip line
GB1171261A (en) Improved Ultra-Sonic Delay Line
SU544989A1 (ru) Резонансный звукопоглотитель
SU1166205A1 (ru) Рупорна антенна
SU446898A1 (ru) Резонансный звукопоглотитель
FR2458155A1 (fr) Reflecteur auxiliaire pour antenne hyperfrequence et antenne comportant un tel reflecteur
JPS56120291A (en) Transceiver for ultrasonic wave
Gober et al. Sound Field in Very Wide and Long Rooms
JPS57145497A (en) Wave transmitter and receiver
JPS54116869A (en) Corrugate conic or pyramidal horn

Legal Events

Date Code Title Description
ST Notification of lapse