FR867296A - Systèmes de transmission à fréquence élevée - Google Patents

Systèmes de transmission à fréquence élevée

Info

Publication number: FR867296A
Authority: FR; France
Prior art keywords: high frequency; transmission systems; frequency transmission; systems; transmission
Prior art date: 1939-08-03
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

Other languages

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

Le Materiel Telephonique Thomson CSF

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.)

1939-08-03

Filing date

1940-09-24

Publication date

1941-10-10

1940-09-24 Application filed by Le Materiel Telephonique Thomson CSF filed Critical Le Materiel Telephonique Thomson CSF

1941-10-10 Application granted granted Critical

1941-10-10 Publication of FR867296A publication Critical patent/FR867296A/fr

Status Expired legal-status Critical Current

Classifications

- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
- H03H7/48—Networks for connecting several sources or loads, working on the same frequency or frequency band, to a common load or source
- H03H7/487—Networks for connecting several sources or loads, working on the same frequency or frequency band, to a common load or source particularly adapted as coupling circuit between transmitters and antennas
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C7/00—Modulating electromagnetic waves
- H03C7/02—Modulating electromagnetic waves in transmission lines, waveguides, cavity resonators or radiation fields of antennas

Landscapes

Physics & Mathematics (AREA)
Electromagnetism (AREA)
Transmitters (AREA)

FR867296D 1939-08-03 1940-09-24 Systèmes de transmission à fréquence élevée Expired FR867296A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US288134A US2244756A (en)	1939-08-03	1939-08-03	Modulation system

Publications (1)

Publication Number	Publication Date
FR867296A true FR867296A (fr)	1941-10-10

Family

ID=23105888

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR867296D Expired FR867296A (fr)	1939-08-03	1940-09-24	Systèmes de transmission à fréquence élevée

Country Status (5)

Country	Link
US (1)	US2244756A (fr)
BE (1)	BE456046A (fr)
CH (1)	CH262004A (fr)
ES (1)	ES176814A1 (fr)
FR (1)	FR867296A (fr)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2735982A (en) *		1956-02-21		Radio frequency power comparator
US2492138A (en) *	1940-02-23	1949-12-27	Int Standard Electric Corp	Mechanical modulator for radio beacons utilizing two tones
US2416790A (en) *	1941-01-28	1947-03-04	Sperry Gyroscope Co Inc	Transmission line bridge circuit
GB581734A (en) *	1941-04-04	1946-10-23	Sperry Gyroscope Co Inc	Improvements in or relating to instrument landing systems for aircraft
US2426992A (en) *	1942-05-27	1947-09-09	Sperry Gyroscope Co Inc	Glide path transmitter
US2439255A (en) *	1942-09-09	1948-04-06	Gen Electric	Capacitor switch
FR948355A (fr) *	1942-12-31	1949-07-29	Western Electric Co	Dispositif de couplage utilisables dans les systèmes de transmission d'ondes
BE473921A (fr) *	1942-12-31
US2415242A (en) *	1943-02-25	1947-02-04	Rca Corp	Switching in wave guide transmission system
US2415932A (en) *	1943-04-21	1947-02-18	Rca Corp	Antenna system
US2594409A (en) *	1943-07-27	1952-04-29	Bell Telephone Labor Inc	Directive antenna
US2425328A (en) *	1944-08-01	1947-08-12	Frederic A Jenks	Switching and modulation system
US2449451A (en) *	1944-09-28	1948-09-14	Westinghouse Electric Corp	High-frequency dielectric heating apparatus
US2531777A (en) *	1945-10-24	1950-11-28	John N Marshall	Variable directive coupler
BE491490A (fr) *	1948-10-04
US2632108A (en) *	1949-07-28	1953-03-17	Rca Corp	Diplexer arrangement
BE515436A (fr) *	1951-11-10	1900-01-01
NL191136A (fr) *	1953-10-01
US2831168A (en) *	1954-01-04	1958-04-15	Gen Electric	Coupling device for wave transmission systems
GB770317A (en) *	1954-07-15	1957-03-20	Gen Electric Co Ltd	Improvements in or relating to electric hybrid devices
US2959659A (en) *	1957-08-19	1960-11-08	Alford Andrew	Electromagnetic heating unit
US3113314A (en) *	1960-09-01	1963-12-03	Forrest G Yetter	Radio guidance and landing system
US3516025A (en) *	1968-12-19	1970-06-02	Adams Russel Co Inc	Wide band hybrid coupler having an open end transmission line section coupled to each part
US4721929A (en) *	1986-10-17	1988-01-26	Ball Corporation	Multi-stage power divider
US9088063B1 (en)	2015-03-11	2015-07-21	Werlatone, Inc.	Hybrid coupler

0
- BE BE456046D patent/BE456046A/xx unknown
1939
- 1939-08-03 US US288134A patent/US2244756A/en not_active Expired - Lifetime
1940
- 1940-09-24 FR FR867296D patent/FR867296A/fr not_active Expired
1947
- 1947-01-20 CH CH262004D patent/CH262004A/de unknown
- 1947-02-15 ES ES176814A patent/ES176814A1/es not_active Expired

Also Published As

Publication number	Publication date
CH262004A (de)	1949-06-15
ES176814A1 (es)	1947-03-16
US2244756A (en)	1941-06-10
BE456046A (fr)

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