GB495977A - Ultra short wave transmission systems - Google Patents

Ultra short wave transmission systems

Info

Publication number
GB495977A
GB495977A GB16278/37A GB1627837A GB495977A GB 495977 A GB495977 A GB 495977A GB 16278/37 A GB16278/37 A GB 16278/37A GB 1627837 A GB1627837 A GB 1627837A GB 495977 A GB495977 A GB 495977A
Authority
GB
United Kingdom
Prior art keywords
radiator
reflector
radii
radiation
transmission line
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
GB16278/37A
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Publication of GB495977A publication Critical patent/GB495977A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
    • H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
    • H01Q19/102—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces wherein the surfaces are of convex toroïdal shape

Landscapes

  • Aerials With Secondary Devices (AREA)
  • Radio Relay Systems (AREA)

Abstract

495,977. Aerials; directive wireless signalling. STANDARD TELEPHONES & CABLES, Ltd. June 11, 1937, No. 16278. Convention date, July 21, 1936. [Class 40 (v)] The ends of the inner and outer conductors 1, 2 of a coaxial transmission line are flaredout as shown at 3 in Fig. 3, so that the radiation-resistance matches the surge impedance of the line. Energy then radiates from them as from an aerial. The optimum relation between the radii of the two conductors and the working wavelength is set out in the Specification. The ratio of the two radii should be constant along the length of the transmission line. A parabolic or other reflector may be used to concentrate the radiation in a desired direction. The reflector 4, 4<1> consists of two paraboloids intersecting at Z<1>, and produces a uniform field in the horizontal plane. The field may be given a downward inclination by setting the radiator 3 to one side of the focus. In Fig. 4, the radiator 3 and reflector 4 are mounted on a platform 7 set on a tower 6 over the transmitter house 5. A screen 8 protects the radiator from rain &c. The installation is particularly suitable for broadcasting television programmes.
GB16278/37A 1936-07-21 1937-06-11 Ultra short wave transmission systems Expired GB495977A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR495977X 1936-07-21

Publications (1)

Publication Number Publication Date
GB495977A true GB495977A (en) 1938-11-23

Family

ID=8904837

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16278/37A Expired GB495977A (en) 1936-07-21 1937-06-11 Ultra short wave transmission systems

Country Status (1)

Country Link
GB (1) GB495977A (en)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2416675A (en) * 1941-11-26 1947-03-04 Bell Telephone Labor Inc Horn antenna system
US2427005A (en) * 1943-11-06 1947-09-09 Bell Telephone Labor Inc Directive microwave antenna
US2441574A (en) * 1944-02-29 1948-05-18 Sperry Corp Electromagnetic wave guide
US2521524A (en) * 1945-04-27 1950-09-05 Bell Telephone Labor Inc Directional antenna system
US2549143A (en) * 1947-11-06 1951-04-17 Bell Telephone Labor Inc Microwave broadcast antenna
US2597391A (en) * 1946-04-30 1952-05-20 Us Sec War Antenna
US2599895A (en) * 1946-01-16 1952-06-10 Us Navy Eta-plane horn
US2605414A (en) * 1945-06-13 1952-07-29 Keary Thomas Joseph Fan beam radiator
US2668869A (en) * 1945-02-26 1954-02-09 Rca Corp Radio viewing system
US2749545A (en) * 1951-08-01 1956-06-05 Itt Electromagnetic horn
US3051951A (en) * 1957-09-11 1962-08-28 Itt Omnidirectional beacon antenna
DE3626856A1 (en) * 1986-08-08 1988-02-11 Licentia Gmbh Antenna arrangement having horn radiating elements
GB2222486A (en) * 1988-08-30 1990-03-07 Kabelmetal Electro Gmbh Reflector aerial radiating system

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2416675A (en) * 1941-11-26 1947-03-04 Bell Telephone Labor Inc Horn antenna system
US2427005A (en) * 1943-11-06 1947-09-09 Bell Telephone Labor Inc Directive microwave antenna
US2441574A (en) * 1944-02-29 1948-05-18 Sperry Corp Electromagnetic wave guide
US2668869A (en) * 1945-02-26 1954-02-09 Rca Corp Radio viewing system
US2521524A (en) * 1945-04-27 1950-09-05 Bell Telephone Labor Inc Directional antenna system
US2605414A (en) * 1945-06-13 1952-07-29 Keary Thomas Joseph Fan beam radiator
US2599895A (en) * 1946-01-16 1952-06-10 Us Navy Eta-plane horn
US2597391A (en) * 1946-04-30 1952-05-20 Us Sec War Antenna
US2549143A (en) * 1947-11-06 1951-04-17 Bell Telephone Labor Inc Microwave broadcast antenna
US2749545A (en) * 1951-08-01 1956-06-05 Itt Electromagnetic horn
US3051951A (en) * 1957-09-11 1962-08-28 Itt Omnidirectional beacon antenna
DE3626856A1 (en) * 1986-08-08 1988-02-11 Licentia Gmbh Antenna arrangement having horn radiating elements
GB2222486A (en) * 1988-08-30 1990-03-07 Kabelmetal Electro Gmbh Reflector aerial radiating system
GB2222486B (en) * 1988-08-30 1993-02-17 Kabelmetal Electro Gmbh Reflector aerial radiating system

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