GB771004A - Improvements relating to electrical transmission line arrangements - Google Patents

Improvements relating to electrical transmission line arrangements

Info

Publication number
GB771004A
GB771004A GB1683054A GB1683054A GB771004A GB 771004 A GB771004 A GB 771004A GB 1683054 A GB1683054 A GB 1683054A GB 1683054 A GB1683054 A GB 1683054A GB 771004 A GB771004 A GB 771004A
Authority
GB
United Kingdom
Prior art keywords
outputs
phase
input
division
lines
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
GB1683054A
Inventor
John Henry Nicoll
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston 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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Priority to GB1683054A priority Critical patent/GB771004A/en
Priority to FR67914D priority patent/FR67914E/en
Publication of GB771004A publication Critical patent/GB771004A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P5/00—Coupling devices of the waveguide type
    • H01P5/04—Coupling devices of the waveguide type with variable factor of coupling

Landscapes

  • Transmitters (AREA)
  • Waveguide Switches, Polarizers, And Phase Shifters (AREA)

Abstract

771,004. Transmission line networks. BRITISH THOMSON-HOUSTON CO., Ltd. June 3, 1955 [June 8, 1954], No. 16830/54. Class 40 (8). A transmission arrangement comprises a pair of coupled, parallel transmission lines, e.g. waveguides 1, 2, connecting two inputs A, D to two outputs B, C, a variable constantphase division of power between the outputs being achieved by means of differentially operated phase-shifters 5, 6 in the parallel lines. The lines are connected at spaced points by two 3 db. couplers 3, 4 in such a manner that, when the phase-shifts in the paths are equal, all the energy from the input A appears at B. Operation of the phase-shifters 5, 6 (e.g. by a motor 9) causes an advance in phase in one path and a corresponding lag in the other, the result being a variable division of power between the outputs B, C. The phaseangle between the input A and the two outputs B, C remains constant. Division of energy from the input D between outputs B, C is effected in a similar manner. If the inputs to A and D are in quadrature and the phaseshifters are varied cyclically, the output amplitudes at B and C will vary cyclically between the algebraic sum and the algebraic difference of the input amplitudes. One of the outputs may be terminated by a dummy load and the arrangement used as a constant-phase attenuator. Specification 752,590 is referred to.
GB1683054A 1954-06-08 1954-06-08 Improvements relating to electrical transmission line arrangements Expired GB771004A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB1683054A GB771004A (en) 1954-06-08 1954-06-08 Improvements relating to electrical transmission line arrangements
FR67914D FR67914E (en) 1954-06-08 1955-06-08 Device for distributing electromagnetic energy between two transmission paths

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1683054A GB771004A (en) 1954-06-08 1954-06-08 Improvements relating to electrical transmission line arrangements

Publications (1)

Publication Number Publication Date
GB771004A true GB771004A (en) 1957-03-27

Family

ID=10084453

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1683054A Expired GB771004A (en) 1954-06-08 1954-06-08 Improvements relating to electrical transmission line arrangements

Country Status (2)

Country Link
FR (1) FR67914E (en)
GB (1) GB771004A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1248119B (en) * 1962-05-11 1967-08-24 Philips Patentverwaltung Device for amplitude modulation of microwaves in waveguides

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1248119B (en) * 1962-05-11 1967-08-24 Philips Patentverwaltung Device for amplitude modulation of microwaves in waveguides

Also Published As

Publication number Publication date
FR67914E (en) 1958-03-26

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