GB692591A - Wave guide attenuator - Google Patents

Wave guide attenuator

Info

Publication number
GB692591A
GB692591A GB3113150A GB3113150A GB692591A GB 692591 A GB692591 A GB 692591A GB 3113150 A GB3113150 A GB 3113150A GB 3113150 A GB3113150 A GB 3113150A GB 692591 A GB692591 A GB 692591A
Authority
GB
United Kingdom
Prior art keywords
guide
section
load
stub
attenuator
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
GB3113150A
Inventor
Kenneth Milne
Harry Burn Taylor
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 GB3113150A priority Critical patent/GB692591A/en
Publication of GB692591A publication Critical patent/GB692591A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/24—Frequency- independent attenuators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/22—Attenuating devices

Landscapes

  • Aerials With Secondary Devices (AREA)

Abstract

692,591. Wave-guides. BRITISH THOMSON-HOUSTON CO., Ltd. Dec. 14, 1951 [Dec. 21, 1950], No. 31131/50. Class 40 (viii). A wave-guide attenuator comprises a length of cylindrical guide having a stub guide of rectangular cross-section connected thereto, the longitudinal axis of the stub being perpendicular to, and its long side being parallel with, the longitudinal axis of the cylindrical guide, and the stub guide terminating in a matched load. As shown, waves from a transmitter 1 are led through a rectangular guide 2. The attenuator consists of three lengths 4, 5, and 6 of circular section guide. The length 5 bears a stub 9 with load 10, and is mounted to rotate with respect to the other sections at flanged joints 7. The rectangular guide 2 causes the transmitted waves to be plane polarized and thus rotation of section 5 varies the amount of energy which branches off into guide 9 and is absorbed in load 10. Further, a metal strip 11 is placed in section 15 so that the output waves are polarized in a plane that rotates with section 5 and thus a varying amount of energy is dissipated in branch 12 and load 13 attached to section 6. The load 3 connected to the attenuator by a further rectangular guide 2 receives a proportion cos A of the original energy where A is the angle of rotation of section 5. If desired the apparatus may be made symmetrical by adding a stub and load to section 4 and providing loaded stubs on each side of strip 11 m section 5.
GB3113150A 1950-12-21 1950-12-21 Wave guide attenuator Expired GB692591A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3113150A GB692591A (en) 1950-12-21 1950-12-21 Wave guide attenuator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3113150A GB692591A (en) 1950-12-21 1950-12-21 Wave guide attenuator

Publications (1)

Publication Number Publication Date
GB692591A true GB692591A (en) 1953-06-10

Family

ID=10318466

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3113150A Expired GB692591A (en) 1950-12-21 1950-12-21 Wave guide attenuator

Country Status (1)

Country Link
GB (1) GB692591A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117878556A (en) * 2024-03-11 2024-04-12 东南大学 Reflection type waveguide adjustable attenuator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117878556A (en) * 2024-03-11 2024-04-12 东南大学 Reflection type waveguide adjustable attenuator
CN117878556B (en) * 2024-03-11 2024-05-24 东南大学 Reflection type waveguide adjustable attenuator

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