FR2394184A1 - Filtre eliminateur de bande a propagation optique - Google Patents

Filtre eliminateur de bande a propagation optique

Info

Publication number
FR2394184A1
FR2394184A1 FR787817288A FR7817288A FR2394184A1 FR 2394184 A1 FR2394184 A1 FR 2394184A1 FR 787817288 A FR787817288 A FR 787817288A FR 7817288 A FR7817288 A FR 7817288A FR 2394184 A1 FR2394184 A1 FR 2394184A1
Authority
FR
France
Prior art keywords
waves
coupler
eliminator filter
optical propagation
serves
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
FR787817288A
Other languages
English (en)
Other versions
FR2394184B1 (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.)
NTT Inc
Original Assignee
Nippon Telegraph and Telephone Corp
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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Publication of FR2394184A1 publication Critical patent/FR2394184A1/fr
Application granted granted Critical
Publication of FR2394184B1 publication Critical patent/FR2394184B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/20—Frequency-selective devices, e.g. filters
    • H01P1/213—Frequency-selective devices, e.g. filters combining or separating two or more different frequencies
    • H01P1/2138—Frequency-selective devices, e.g. filters combining or separating two or more different frequencies using hollow waveguide filters

Landscapes

  • Control Of Motors That Do Not Use Commutators (AREA)

Abstract

Filtre éliminateur de bande à propagation optique Un coupleur différentiel, divisant et combinant les ondes électromagnétiques incidentes vi , sert d'orifice d'entrée, et des résonateurs 45 et 46 sont couplés à deux orifices qui émettent les ondes après division. Chaque résonateur a des disques de couplage 47, 49 répartis face à face suivant la direction des ondes et un réflecteur 48, 51 situé en face du disque le plus distant du coupleur, les nombres de disques des deux résonateurs différant d'une unité. L'orifice restant 27 du coupleur sert d'orifice de sortie. Application à l'émission et à la réception simultanées d'ondes millimétriques et sub-millimétriques avec une seule antenne ou une seule fréquence porteuse.
FR787817288A 1977-06-10 1978-06-09 Filtre eliminateur de bande a propagation optique Granted FR2394184A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6782077A JPS543449A (en) 1977-06-10 1977-06-10 Semioptical band blooking filter

Publications (2)

Publication Number Publication Date
FR2394184A1 true FR2394184A1 (fr) 1979-01-05
FR2394184B1 FR2394184B1 (fr) 1983-07-08

Family

ID=13355952

Family Applications (1)

Application Number Title Priority Date Filing Date
FR787817288A Granted FR2394184A1 (fr) 1977-06-10 1978-06-09 Filtre eliminateur de bande a propagation optique

Country Status (5)

Country Link
US (1) US4185257A (fr)
JP (1) JPS543449A (fr)
DE (1) DE2825432C2 (fr)
FR (1) FR2394184A1 (fr)
GB (1) GB1602769A (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2488055A1 (fr) * 1980-07-31 1982-02-05 Thomson Csf Transducteur d'antenne pour antenne d'emission-reception et source primaire d'antenne equipee d'un tel transducteur
JPS6191688U (fr) * 1984-11-20 1986-06-13
JPS634707A (ja) * 1986-06-25 1988-01-09 Matsushita Electric Works Ltd 埋込型ノイズフイルタ
US7903906B2 (en) * 2006-12-01 2011-03-08 3M Innovative Properties Company Optical sensing devices and methods
US7486855B2 (en) * 2006-12-27 2009-02-03 3M Innovative Properties Company Optical microresonator
US7512298B2 (en) 2006-12-01 2009-03-31 3M Innovative Properties Company Optical sensing methods
US7702202B2 (en) 2006-12-01 2010-04-20 3M Innovative Properties Company Optical microresonator
US7903240B2 (en) * 2006-12-01 2011-03-08 3M Innovative Properties Company Optical sensing device
US7933022B2 (en) 2006-12-01 2011-04-26 3M Innovative Properties Company Integrated optical disk resonator
JP5499080B2 (ja) 2012-05-23 2014-05-21 アンリツ株式会社 ミリ波帯フィルタおよびその製造方法
JP6196793B2 (ja) * 2013-03-28 2017-09-13 アンリツ株式会社 ミリ波帯スペクトラム解析装置

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2541593A1 (de) * 1975-09-18 1977-03-24 Licentia Gmbh Frequenzperiodische mikrowellenkanalweiche hoher trennschaerfe

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2108687C3 (de) * 1971-02-24 1978-09-21 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Periodischer Band-Multiplexer für HOl -Hohlkabelsysteme
US4034315A (en) * 1975-03-08 1977-07-05 Licentia Patent-Verwaltungs-G.M.B.H. Waveguide directional coupler

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2541593A1 (de) * 1975-09-18 1977-03-24 Licentia Gmbh Frequenzperiodische mikrowellenkanalweiche hoher trennschaerfe

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
EXBK/76 *

Also Published As

Publication number Publication date
DE2825432C2 (de) 1982-01-28
GB1602769A (en) 1981-11-18
JPS5719881B2 (fr) 1982-04-24
US4185257A (en) 1980-01-22
FR2394184B1 (fr) 1983-07-08
JPS543449A (en) 1979-01-11
DE2825432A1 (de) 1978-12-14

Similar Documents

Publication Publication Date Title
US4128759A (en) Fiber optic delay line filter
EP0122830A3 (fr) Filtre optique directionnel
JPS6465506A (en) Optical attenuator
JPS57142005A (en) Two band microwave source and antenna using same source
GB1319097A (en) Dispersive delay lines operating in the shear mode
GB1497288A (en) Telecommunication system
DE3781407D1 (de) Elektronisch abstimmbarer lichtwellenleiterempfaenger fuer schmalband-mikrowellensignalempfang.
ES415656A1 (es) Una antena de guiaondas.
GB1468047A (en) Surface acoustic wave devices
GB1530665A (en) Acoustic wave devices
JPS55163505A (en) Light wavelength selective coupling device
CA2015026A1 (fr) Diplexeur hyperfrequence
US4565983A (en) Filter
KR102682280B1 (ko) 공통 커플링 구조를 가진 도파관 멀티플렉서
JPS568914A (en) Low-frequency dispersed type delay line
US2738468A (en) Wave guide filters
SU1277256A1 (ru) Микрополосковый фильтр
JPS55156414A (en) Band pass filter
SU1062809A1 (ru) Резонансное устройство
GB1046771A (en) Improvements in methods of and apparatus for echo-ranging
SU1383266A1 (ru) Демультиплексор
US2864061A (en) Multichannel filter
GB905774A (en) Electrical waveguide arrangements
JPS53132246A (en) Elastic surface wave filter
JPS5642419A (en) Surface elastic wave resonator

Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse