FR953890A - Improvements to the t antennas. s. f. - Google Patents

Improvements to the t antennas. s. f.

Info

Publication number: FR953890A
Authority: FR; France
Prior art keywords: antennas
Prior art date: 1943-04-19
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.)

Compagnie Francaise Thomson Houston SA

Original Assignee

Compagnie Francaise Thomson Houston 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.)

1943-04-19

Filing date

1947-10-07

Publication date

1949-12-14

1947-10-07 Application filed by Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA

1949-12-14 Application granted granted Critical

1949-12-14 Publication of FR953890A publication Critical patent/FR953890A/en

Status Expired legal-status Critical Current

Classifications

- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/12—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical relative movement between primary active elements and secondary devices of antennas or antenna systems
- H01Q3/16—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical relative movement between primary active elements and secondary devices of antennas or antenna systems for varying relative position of primary active element and a reflecting device
- H01Q3/18—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical relative movement between primary active elements and secondary devices of antennas or antenna systems for varying relative position of primary active element and a reflecting device wherein the primary active element is movable and the reflecting device is fixed
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/12—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical relative movement between primary active elements and secondary devices of antennas or antenna systems
- H01Q3/16—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical relative movement between primary active elements and secondary devices of antennas or antenna systems for varying relative position of primary active element and a reflecting device

FR953890D 1943-04-19 1947-10-07 Improvements to the t antennas. s. f. Expired FR953890A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US483555A US2446436A (en)	1943-04-19	1943-04-19	Beam antenna system

Publications (1)

Publication Number	Publication Date
FR953890A true FR953890A (en)	1949-12-14

Family

ID=23920540

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR953890D Expired FR953890A (en)	1943-04-19	1947-10-07	Improvements to the t antennas. s. f.

Country Status (4)

Country	Link
US (1)	US2446436A (en)
BE (1)	BE479157A (en)
FR (1)	FR953890A (en)
GB (1)	GB639469A (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2520945A (en) *	1943-08-18	1950-09-05	Sperry Corp	Wave transmission apparatus
US2491493A (en) *	1944-02-07	1949-12-20	Stromberg Carlson Co	Dipole antenna
US2627028A (en) *	1945-07-03	1953-01-27	Welville B Nowak	Antenna system
US2635191A (en) *	1945-07-09	1953-04-14	Jr Lewis E Swarts	Antenna
US2605416A (en) *	1945-09-19	1952-07-29	Foster John Stuart	Directive system for wave guide feed to parabolic reflector
US2647212A (en) *	1946-01-17	1953-07-28	Bell Telephone Labor Inc	Antenna system
US2543130A (en) *	1946-07-03	1951-02-27	Bell Telephone Labor Inc	Reflecting system
US2503278A (en) *	1947-03-21	1950-04-11	Raytheon Mfg Co	Energy radiation apparatus
US2642754A (en) *	1948-12-11	1953-06-23	Conti Maurice P De	Rotatable antenna for televisions
US2570197A (en) *	1949-06-16	1951-10-09	John I Bohnert	Dual purpose antenna
US2803009A (en) *	1950-11-13	1957-08-13	Western Electric Co	Protective shield for providing an impedance match between a radar feed and its parabolic reflector
JPS5119948B1 (en) *	1970-11-21	1976-06-21

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US1828705A (en) *	1928-05-21	1931-10-20	Fed Telegraph Co	Radio system
US2083242A (en) *	1934-01-27	1937-06-08	Telefunken Gmbh	Method of direction finding
BE472233A (en) *	1939-07-26
US2401344A (en) *	1940-06-14	1946-06-04	Gen Electric Co Ltd	High-frequency electric transmission system
US2298449A (en) *	1941-11-08	1942-10-13	Bell Telephone Labor Inc	Antenna

0
- BE BE479157D patent/BE479157A/xx unknown
1943
- 1943-04-19 US US483555A patent/US2446436A/en not_active Expired - Lifetime
1947
- 1947-06-20 GB GB16310/47A patent/GB639469A/en not_active Expired
- 1947-10-07 FR FR953890D patent/FR953890A/en not_active Expired

Also Published As

Publication number	Publication date
BE479157A (en)
US2446436A (en)	1948-08-03
GB639469A (en)	1950-06-28

Publication	Publication Date	Title
FR953890A (en)	1949-12-14	Improvements to the t antennas. s. f.
CH256408A (en)	1948-08-31	Motocultor.
CH261402A (en)	1949-05-15	Stylograph.
CH247010A (en)	1947-02-15	Stylograph.
CH257935A (en)	1948-10-31	Aircraft.
CH242594A (en)	1946-05-31	Decanter.
CH260067A (en)	1949-02-28	Zipper.
CH261676A (en)	1949-05-31	Montre-réveil.
CH238877A (en)	1945-08-31	Grain point.
FR905730A (en)	1945-12-12	Improvements to the valves
CH249350A (en)	1947-06-30	Culottes.
CH231529A (en)	1944-03-31	Cleat.
CH265063A (en)	1949-11-15	Overlay Receiver.
CH230482A (en)	1944-01-15	Gaiter.
FR899253A (en)	1945-05-25	Improvements to the seats
FR943759A (en)	1949-03-17	Antenna improvements
CH296505A (en)	1954-02-15	Vehicle.
ES9241Y (en)	1945-12-01	Secafirmas.
ES9348Y (en)	1945-07-01	Bracelet-case.
ES8987Y (en)	1945-07-01	Cycle-float.
DK69956C (en)	1949-09-26	Shagpibe.
DK69478C (en)	1949-06-27	Kande.
DK62411C (en)	1944-07-06	Barberomatomat.
DK68142C (en)	1948-12-13	Kande.
DK67241C (en)	1948-07-19	Opmaskenaal.