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 reflector

Info

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
Application number
FR7432142A
Other languages
French (fr)
Other versions
FR2286516B1 (en
Inventor
Pierre Chanteau
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.)
PORTENSEIGNE SA
Original Assignee
PORTENSEIGNE 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.)
Filing date
Publication date
Application filed by PORTENSEIGNE SA filed Critical PORTENSEIGNE SA
Priority to FR7432142A priority Critical patent/FR2286516A1/en
Publication of FR2286516A1 publication Critical patent/FR2286516A1/en
Application granted granted Critical
Publication of FR2286516B1 publication Critical patent/FR2286516B1/fr
Granted legal-status Critical Current

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.
FR7432142A 1974-09-24 1974-09-24 UHF-VHF antenna with two different frequency dipoles - has capacitive loads on VHF dipole behind UHF reflector Granted FR2286516A1 (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (2)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Similar Documents

Publication Publication Date Title
ES8501925A1 (en) Coaxial dipole antenna with extended effective aperture.
GB927051A (en) Improvements in or relating to antennas for high frequencies
CA994470A (en) Multiple-beam cassegrainian antenna
EP0362079A3 (en) Microstrip antenna
GB1364941A (en) Aerials
JPS6481400A (en) Radar shielding member
US2888678A (en) Antenna driven element
FR2286516A1 (en) UHF-VHF antenna with two different frequency dipoles - has capacitive loads on VHF dipole behind UHF reflector
GB1519880A (en) Broad band omnidirectional antenna array
JPS5252549A (en) Antenna unit
GB1398262A (en) Aerials
JPS5758402A (en) Loop antenna common use for two frequencies
GB959019A (en) Radio aerial
JPS5368960A (en) Slot array antenna unit
CA1003559A (en) Stripline slotted balun dipole antenna
Riley A UHF ruggedised log-periodic aerial
GB1247475A (en) Wide band antennas
US3274605A (en) Coplanar log periodic dipole array
WONG et al. Design variations and performance characteristics of the open-sleeve dipole(Broadband characteristics of open sleeve dipole antenna mounted in front of metallic reflector)[Technical Report, Mar.- Sep. 1972]
STROM et al. An SBF array for reception of atmospheric noise(antenna radiation patterns)[Instrumentation Papers]
POTTS The synthesis of dual-subreflector feed systems for parabolic reflector antennas[Ph. D. Thesis]
SU560677A1 (en) Device for orienting a flat conductive part
GB1223778A (en) Wide band antenna for satellite navigation and related problems
LEWIN Some comments on the time-causal characteristics of leaky and surface waves[Interim Report]
GB894962A (en) Improvements in multi-band resonant aerials

Legal Events

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