GB482114A - Improvements in or relating to radio antenna systems - Google Patents

Improvements in or relating to radio antenna systems

Info

Publication number
GB482114A
GB482114A GB25392/37A GB2539237A GB482114A GB 482114 A GB482114 A GB 482114A GB 25392/37 A GB25392/37 A GB 25392/37A GB 2539237 A GB2539237 A GB 2539237A GB 482114 A GB482114 A GB 482114A
Authority
GB
United Kingdom
Prior art keywords
wires
feed
relating
away
antenna systems
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
GB25392/37A
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.)
Marconis Wireless Telegraph Co Ltd
BAE Systems Electronics Ltd
Original Assignee
Marconis Wireless Telegraph Co Ltd
Marconi Co Ltd
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 Marconis Wireless Telegraph Co Ltd, Marconi Co Ltd filed Critical Marconis Wireless Telegraph Co Ltd
Publication of GB482114A publication Critical patent/GB482114A/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
    • H01Q9/16—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

  • Details Of Aerials (AREA)

Abstract

482,114. Aerials. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Sept. 18, 1937, No. 25392. Convention date, Oct. 8, 1936. [Class 40 (v)] A short-wave aerial having sharply-directional properties consists of two parallel openended wires 7, 8 having a length of from 0À4 to 0À5 #, and bent into almost a complete circle, the space between the open ends being of the order 0À01 to 0À02 #, and the separation between the two wires being of the same order. The maximum directivity is in the plane of the two wires, away from their open ends. The two wires 9, 10 of the feed-line are connected to the two ends, as shown in Fig. 2, or intermediately as shown in Fig. 5. Instead of taking the feed-lines towards the centre of the circle, they may extend outwards and away from it, Fig. 4 (not shown). Fig. 6 shows a method of mounting the aerial so that it can be oriented in three dimensions.
GB25392/37A 1936-10-08 1937-09-18 Improvements in or relating to radio antenna systems Expired GB482114A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US482114XA 1936-10-08 1936-10-08

Publications (1)

Publication Number Publication Date
GB482114A true GB482114A (en) 1938-03-23

Family

ID=21953301

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25392/37A Expired GB482114A (en) 1936-10-08 1937-09-18 Improvements in or relating to radio antenna systems

Country Status (1)

Country Link
GB (1) GB482114A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE755066C (en) * 1935-05-19 1953-06-15 Lorenz C Ag Antenna to give preference to ground radiation
GB2332099A (en) * 1997-12-05 1999-06-09 Siemens Ag Hand-held transmitter housing an open-loop radiating element

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE755066C (en) * 1935-05-19 1953-06-15 Lorenz C Ag Antenna to give preference to ground radiation
GB2332099A (en) * 1997-12-05 1999-06-09 Siemens Ag Hand-held transmitter housing an open-loop radiating element

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