FR940993A - Antennas particularly intended for very high frequencies - Google Patents

Antennas particularly intended for very high frequencies

Info

Publication number: FR940993A
Authority: FR; France
Prior art keywords: high frequencies; particularly intended; antennas particularly; antennas; intended
Prior art date: 1946-01-12
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

Inventor

Andrew Alford

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.)

International Standard Electric Corp

Original Assignee

International Standard Electric 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.)

1946-01-12

Filing date

1947-01-08

Publication date

1948-12-29

1947-01-08 Application filed by International Standard Electric Corp filed Critical International Standard Electric Corp

1948-12-29 Application granted granted Critical

1948-12-29 Publication of FR940993A publication Critical patent/FR940993A/en

Status Expired legal-status Critical Current

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
- H01Q13/10—Resonant slot antennas
- H01Q13/12—Longitudinally slotted cylinder antennas; Equivalent structures
- 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
- H01Q13/10—Resonant slot antennas

FR940993D 1946-01-12 1947-01-08 Antennas particularly intended for very high frequencies Expired FR940993A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US640690A US2625654A (en)	1946-01-12	1946-01-12	Slotted cylindrical antenna

Publications (1)

Publication Number	Publication Date
FR940993A true FR940993A (en)	1948-12-29

Family

ID=24569312

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR940993D Expired FR940993A (en)	1946-01-12	1947-01-08	Antennas particularly intended for very high frequencies

Country Status (7)

Country	Link
US (1)	US2625654A (en)
BE (1)	BE472929A (en)
CH (1)	CH259968A (en)
ES (1)	ES179628A1 (en)
FR (1)	FR940993A (en)
GB (1)	GB637729A (en)
NL (2)	NL66735C (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB2196796A (en) *	1986-10-27	1988-05-05	Jaybeam Limited	Antennas and antenna arrays
JP3417083B2 (en) *	1994-10-04	2003-06-16	セイコーエプソン株式会社	Portable radio
US7948440B1 (en)	2006-09-30	2011-05-24	LHC2 Inc.	Horizontally-polarized omni-directional antenna
US8570239B2 (en) *	2008-10-10	2013-10-29	LHC2 Inc.	Spiraling surface antenna
EP2412057A2 (en) *	2009-01-23	2012-02-01	LHC2 Inc	Compact circularly polarized omni-directional antenna

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2415094A (en) *	1938-01-17	1947-02-04	Board	Radio measurement of distances and velocities
US2238770A (en) *	1938-03-07	1941-04-15	Emi Ltd	High frequency electrical conductor or radiator
US2234293A (en) *	1939-09-19	1941-03-11	Rca Corp	Antenna system
US2321454A (en) *	1941-11-22	1943-06-08	Rca Corp	Multiple section antenna
US2414266A (en) *	1942-06-27	1947-01-14	Rca Corp	Antenna
US2400867A (en) *	1942-06-27	1946-05-21	Rca Corp	Antenna
BE465085A (en) *	1945-05-11

0
- NL NL129712D patent/NL129712B/xx unknown
- BE BE472929D patent/BE472929A/xx unknown
- NL NL66735D patent/NL66735C/xx active
1946
- 1946-01-12 US US640690A patent/US2625654A/en not_active Expired - Lifetime
- 1946-12-30 CH CH259968D patent/CH259968A/en unknown
1947
- 1947-01-08 FR FR940993D patent/FR940993A/en not_active Expired
- 1947-01-10 GB GB974/47A patent/GB637729A/en not_active Expired
- 1947-09-08 ES ES179628A patent/ES179628A1/en not_active Expired

Also Published As

Publication number	Publication date
US2625654A (en)	1953-01-13
CH259968A (en)	1949-02-15
BE472929A (en)
NL129712B (en)
ES179628A1 (en)	1947-10-16
NL66735C (en)
GB637729A (en)	1950-05-24

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