GB744119A - Aerial systems - Google Patents

Aerial systems

Info

Publication number
GB744119A
GB744119A GB3622653A GB3622653A GB744119A GB 744119 A GB744119 A GB 744119A GB 3622653 A GB3622653 A GB 3622653A GB 3622653 A GB3622653 A GB 3622653A GB 744119 A GB744119 A GB 744119A
Authority
GB
United Kingdom
Prior art keywords
aerial
loop
length
feeder
counterpoise
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
GB3622653A
Inventor
Vernon Edward Leslie Harrison
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.)
National Research Development Corp UK
Original Assignee
National Research Development Corp UK
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 National Research Development Corp UK filed Critical National Research Development Corp UK
Priority to GB3622653A priority Critical patent/GB744119A/en
Publication of GB744119A publication Critical patent/GB744119A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H01Q9/30—Resonant antennas with feed to end of elongated active element, e.g. unipole
    • H01Q9/32—Vertical arrangement of element
    • H01Q9/38—Vertical arrangement of element with counterpoise

Landscapes

  • Details Of Aerials (AREA)

Abstract

744,119. Aerials. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Dec. 21, 1954 [Dec. 30, 1953], No. 36226/53. Class 40 (7). A counterpoise earth arrangement for use with an unbalanced aerial feeder system consists of a conductive loop 4 surrounding the feeder and a single substantially straight conductive member 6 connecting the loop to the side of the feeder 3 not connected to the aerial. In the embodiment shown the transmission line feeder is a coaxial one and has its inner conductor 2 connected to the unipole aerial 1 and the counterpoise attached to its outer conductor. The configuration of the loop is preferably circular, the circle being in a plane at right angles to the transmission line. The circumference of the loop 4 plus the length of member 6 is made half a wavelength at the mid-frequency of operation. The transmission line impedance may be matched to that of the aerial by adjusting the point of attachment of the member 6 to the outer conductor 5. If necessary the conductor 5 may be extended by a single wire conductor arranged parallel to the aerial 1 and the member 6 attached thereto. The loop may be distorted out of the circular and need not exactly lie in a plane at right angles to the aerial axis. If the length of the aerial differs from a quarter wavelength the total counterpoise length as specified above should be arranged to be twice the aerial length.
GB3622653A 1953-12-30 1953-12-30 Aerial systems Expired GB744119A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3622653A GB744119A (en) 1953-12-30 1953-12-30 Aerial systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3622653A GB744119A (en) 1953-12-30 1953-12-30 Aerial systems

Publications (1)

Publication Number Publication Date
GB744119A true GB744119A (en) 1956-02-01

Family

ID=10386143

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3622653A Expired GB744119A (en) 1953-12-30 1953-12-30 Aerial systems

Country Status (1)

Country Link
GB (1) GB744119A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2559623A1 (en) * 1984-02-10 1985-08-16 Malcombe Jean Claude Omnidirectional miniature transmission and reception antenna with gain.
USRE33743E (en) * 1985-03-06 1991-11-12 On-glass antenna

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2559623A1 (en) * 1984-02-10 1985-08-16 Malcombe Jean Claude Omnidirectional miniature transmission and reception antenna with gain.
USRE33743E (en) * 1985-03-06 1991-11-12 On-glass antenna

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