FR2286516A1 - UHF-VHF antenna with two different frequency dipoles - has capacitive loads on VHF dipole behind UHF reflector - Google Patents
UHF-VHF antenna with two different frequency dipoles - has capacitive loads on VHF dipole behind UHF reflectorInfo
- Publication number
- FR2286516A1 FR2286516A1 FR7432142A FR7432142A FR2286516A1 FR 2286516 A1 FR2286516 A1 FR 2286516A1 FR 7432142 A FR7432142 A FR 7432142A FR 7432142 A FR7432142 A FR 7432142A FR 2286516 A1 FR2286516 A1 FR 2286516A1
- Authority
- FR
- France
- Prior art keywords
- uhf
- vhf
- reflector
- antenna
- elements
- 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
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/40—Imbricated or interleaved structures; Combined or electromagnetically coupled arrangements, e.g. comprising two or more non-connected fed radiating elements
- H01Q5/48—Combinations of two or more dipole type antennas
- H01Q5/49—Combinations of two or more dipole type antennas with parasitic elements used for purposes other than for dual-band or multi-band, e.g. imbricated Yagi antennas
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Aerials With Secondary Devices (AREA)
Abstract
This antenna has a UHF dipole of a Yagi type with director (1) and reflector (3) elements and a doublet (2) located between them. A VHF doublet, whose dimensions are only just larger than the UHF elements, is connected to the UHF antenna by a twin cable and located behind the UHF reflector. The electrical dimensions of the VHF doublet are adjusted by capacitive loading elements (9) connected to the extremities of the stubs. These are shaped around the Yagi elements and the whole array is enclosed in a rotating housing. This gives a VHF/UHF antenna of UHF size with improved VHF performance compared to those with folded elements.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7432142A FR2286516A1 (en) | 1974-09-24 | 1974-09-24 | UHF-VHF antenna with two different frequency dipoles - has capacitive loads on VHF dipole behind UHF reflector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7432142A FR2286516A1 (en) | 1974-09-24 | 1974-09-24 | UHF-VHF antenna with two different frequency dipoles - has capacitive loads on VHF dipole behind UHF reflector |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2286516A1 true FR2286516A1 (en) | 1976-04-23 |
FR2286516B1 FR2286516B1 (en) | 1979-06-01 |
Family
ID=9143367
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7432142A Granted FR2286516A1 (en) | 1974-09-24 | 1974-09-24 | UHF-VHF antenna with two different frequency dipoles - has capacitive loads on VHF dipole behind UHF reflector |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2286516A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2824686A1 (en) * | 1978-06-06 | 1979-12-13 | Fte Maximal Fernsehtech | Omnidirectional receiver antenna for VHF and UHF TV ranges - has turnstile antenna for VHF and triple dipole for UHF and amplifier for whole frequency range |
EP0349499A2 (en) * | 1988-06-27 | 1990-01-03 | CO.BRA S.r.l. | Television antenna for interiors |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1298158B (en) * | 1964-04-24 | 1969-06-26 | Siemens Ag | Yagi antenna for reception in two television areas |
US3710337A (en) * | 1970-03-24 | 1973-01-09 | Jfd Electronics Corp | Miniature tv antenna |
-
1974
- 1974-09-24 FR FR7432142A patent/FR2286516A1/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1298158B (en) * | 1964-04-24 | 1969-06-26 | Siemens Ag | Yagi antenna for reception in two television areas |
US3710337A (en) * | 1970-03-24 | 1973-01-09 | Jfd Electronics Corp | Miniature tv antenna |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2824686A1 (en) * | 1978-06-06 | 1979-12-13 | Fte Maximal Fernsehtech | Omnidirectional receiver antenna for VHF and UHF TV ranges - has turnstile antenna for VHF and triple dipole for UHF and amplifier for whole frequency range |
EP0349499A2 (en) * | 1988-06-27 | 1990-01-03 | CO.BRA S.r.l. | Television antenna for interiors |
EP0349499A3 (en) * | 1988-06-27 | 1990-12-12 | CO.BRA S.r.l. | Television antenna for interiors |
Also Published As
Publication number | Publication date |
---|---|
FR2286516B1 (en) | 1979-06-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
TP | Transmission of property | ||
ST | Notification of lapse |