GB1307648A - Circular multi-range receiving aerial assembly - Google Patents

Circular multi-range receiving aerial assembly

Info

Publication number
GB1307648A
GB1307648A GB1307648DA GB1307648A GB 1307648 A GB1307648 A GB 1307648A GB 1307648D A GB1307648D A GB 1307648DA GB 1307648 A GB1307648 A GB 1307648A
Authority
GB
United Kingdom
Prior art keywords
amplifier
loops
loop
mhz
coupled
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.)
Expired
Application number
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.)
FTE Maximal Fernsehtechnik und Elektromechanik GmbH and Co KG
Original Assignee
FTE Maximal Fernsehtechnik und Elektromechanik GmbH and Co KG
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
Priority claimed from DK296871A external-priority patent/DK135358B/en
Application filed by FTE Maximal Fernsehtechnik und Elektromechanik GmbH and Co KG filed Critical FTE Maximal Fernsehtechnik und Elektromechanik GmbH and Co KG
Publication of GB1307648A publication Critical patent/GB1307648A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/30—Combinations of separate antenna units operating in different wavebands and connected to a common feeder system
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/40—Radiating elements coated with or embedded in protective material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
    • H01Q9/26—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole with folded element or elements, the folded parts being spaced apart a small fraction of operating wavelength
    • H01Q9/265—Open ring dipoles; Circular dipoles

Landscapes

  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Details Of Aerials (AREA)

Abstract

1307648 Aerials FTE MAXIMAL FERNSEHTECHNIK UND ELEKTROMECHANIK 6 July 1971 31542/71 Heading H4A A multi-range omni-directional receiving aerial assembly comprises a wide-band amplifier 11 covering the total frequency range to be received, and a plurality of loop aerial elements 14, 15, 16, each of such a length as to be resonant within a particular frequency range, and each coupled by way of a respective impedance transforming member and a tuned filter to an input of the amplifier 11. As described, the loops 14, 15, 16 are formed from copper tubing and they are respectively resonant at geometrical mean frequencies within the ranges 470-860 MHz, 174-230 MHz, and 74-104 MHz. The loops 14, 15 act as half wave resonators, and the loop 16 acts as a quarter wave resonator. The loops are secured in parallel planes inside a hemispherical cover 22 which has a bottom plate 17. The amplifier 11 is cemented to a block 10 of expanded plastics material which is positioned within the loop aerial elements. The impedance transforming members and filters are contained within the space between the block 10 and the hemispherical cover, said space being filled with expanded plastics material after they have been introduced and connected. The transforming member for the loop 14 is formed as a matching section which effects an impedance transformation of 4 : 1, and is associated with a high-pass filter (Fig. 3, not shown). The transforming members for the loops 15, 16 are formed as autotransformers, effecting impedance transformations of 4 : 1, and are associated with bandpass filters. The outputs of the filters associated with the loops 14, 15 are coupled to the first stage of the amplifier 11, and the output of the filter associated with the loop 16 is coupled to the second stage of said amplifier. The output of the amplifier is connected to an aerial down-lead 13.
GB1307648D 1971-06-17 1971-07-06 Circular multi-range receiving aerial assembly Expired GB1307648A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DK296871A DK135358B (en) 1971-06-17 1971-06-17 Antenna.
GB3154271 1971-07-06
NL7109465A NL7109465A (en) 1971-06-17 1971-07-08

Publications (1)

Publication Number Publication Date
GB1307648A true GB1307648A (en) 1973-02-21

Family

ID=27221701

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1307648D Expired GB1307648A (en) 1971-06-17 1971-07-06 Circular multi-range receiving aerial assembly

Country Status (3)

Country Link
DE (1) DE2228043C2 (en)
GB (1) GB1307648A (en)
NL (1) NL7109465A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4518965A (en) * 1981-02-27 1985-05-21 Tokyo Shibaura Denki Kabushiki Kaisha Tuned small loop antenna and method for designing thereof
US4647937A (en) * 1981-06-05 1987-03-03 Tokyo Shibaura Denki Kabushiki Kaisha Antenna apparatus with tuned loop
US5218371A (en) * 1990-08-14 1993-06-08 Sensormatic Electronics Corporation Antenna array for enhanced field falloff
US5321412A (en) * 1991-05-13 1994-06-14 Sensormatic Electronics Corporation Antenna arrangement with reduced coupling between transmit antenna and receive antenna
GB2430080A (en) * 2005-07-26 2007-03-14 Lear Corp Communication system and method using an antenna network
EP1939984A1 (en) * 2005-10-17 2008-07-02 NEC Corporation Antenna unit and communication device
GB2455653A (en) * 2007-12-19 2009-06-24 Mark Rhodes Multiple loop antenna with broadband performance

Families Citing this family (4)

* 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
IT213862Z2 (en) * 1988-06-27 1990-03-01 Co Bra S R L INTERNAL TELEVISION ANTENNA.
FR2925233B1 (en) * 2007-12-18 2012-04-20 Thales Sa VERY BROADBAND ACTIVE ANTENNA FOR PASSIVE RADAR.
CN110388984A (en) * 2018-04-18 2019-10-29 中国科学院沈阳自动化研究所 A kind of broadband terahertz wave detector

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3424984A (en) * 1964-02-28 1969-01-28 Antenna Res Ass Directional broad band antenna array
US3434145A (en) * 1966-08-01 1969-03-18 S & A Electronics Inc Double loop antenna array with loops perpendicularly and symmetrically arranged with respect to feed lines
US3534372A (en) * 1967-01-03 1970-10-13 Rohde & Schwarz Horizontal broad-band omnidirectional antenna
US3521169A (en) * 1967-07-17 1970-07-21 Edwin M Turner Subminiature integrated antenna
DE1591300B2 (en) * 1967-12-12 1973-04-05 Meinke, Hans H., Prof. Dr.; Lindenmeier, Heinz, Dr.-Ing.; 8000 München ANTENNA WITH A REINFORCING TRIPOLE CONNECTED DIRECTLY BETWEEN THE INPUT TERMINALS
FR2002886A1 (en) * 1968-02-29 1969-10-31 Reidy John J ANTENNA

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4518965A (en) * 1981-02-27 1985-05-21 Tokyo Shibaura Denki Kabushiki Kaisha Tuned small loop antenna and method for designing thereof
US4647937A (en) * 1981-06-05 1987-03-03 Tokyo Shibaura Denki Kabushiki Kaisha Antenna apparatus with tuned loop
US5218371A (en) * 1990-08-14 1993-06-08 Sensormatic Electronics Corporation Antenna array for enhanced field falloff
US5321412A (en) * 1991-05-13 1994-06-14 Sensormatic Electronics Corporation Antenna arrangement with reduced coupling between transmit antenna and receive antenna
GB2430080A (en) * 2005-07-26 2007-03-14 Lear Corp Communication system and method using an antenna network
EP1939984A1 (en) * 2005-10-17 2008-07-02 NEC Corporation Antenna unit and communication device
EP1939984A4 (en) * 2005-10-17 2008-12-17 Nec Corp Antenna unit and communication device
GB2455653A (en) * 2007-12-19 2009-06-24 Mark Rhodes Multiple loop antenna with broadband performance
GB2455653B (en) * 2007-12-19 2010-03-03 Mark Rhodes Antenna formed of multiple resonant loops
US8164530B2 (en) 2007-12-19 2012-04-24 Wfs Technologies Ltd. Antenna formed of multiple resonant loops

Also Published As

Publication number Publication date
NL7109465A (en) 1973-01-10
DE2228043A1 (en) 1973-01-04
DE2228043C2 (en) 1982-11-25

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees