GB597662A - Improvements in and relating to ultra high frequency coupling devices and systems - Google Patents

Improvements in and relating to ultra high frequency coupling devices and systems

Info

Publication number
GB597662A
GB597662A GB17879/45A GB1787945A GB597662A GB 597662 A GB597662 A GB 597662A GB 17879/45 A GB17879/45 A GB 17879/45A GB 1787945 A GB1787945 A GB 1787945A GB 597662 A GB597662 A GB 597662A
Authority
GB
United Kingdom
Prior art keywords
receiver
transmitter
stub
guide
apertures
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
GB17879/45A
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
Publication of GB597662A publication Critical patent/GB597662A/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/03Details of HF subsystems specially adapted therefor, e.g. common to transmitter and receiver
    • G01S7/034Duplexers

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Constitution Of High-Frequency Heating (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Waveguide Aerials (AREA)

Abstract

597,662. Wave-guides. BRITISH THOMSON-HOUSTON CO., Ltd. July 12, 1945, No. 17879. Convention date, July 17, 1944. [Classes 40 (iii) and 40 (v)] A combined transmitting and receiving system comprising a transmitter and a receiver connected to a common wave - guide has means for protecting the receiver from the transmitter and for preventing received signals of low intensity from being dissipated in the transmitter. Fig. 1 shows an arrangement for connecting a transmitter 1 and receiver 5 to a wave-guide 3 terminated by a radiating or receiving horn 4. The receiver 5 is coupled to the guide 3 through a guide 9 having transverse metallic walls 6, 7, 8 and 12, 13 each formed with an aperture or slot resonant at the operating frequency. The slots in walls 12, 13 are closed by glass windows thus enabling guide 9 to be filled with gas, and electrodes 15 are provided to maintain a small discharge across the tuned apertures in walls 6 and 7. With this arrangement, received waves of small intensity are unable to break down the resonant apertures, and so pass freely to the receiver 5. Waves of great intensity from transmitter 1 break down the apertures and are unable to pass to the receiver. To prevent loss of received energy in the transmitter 2, a gas-filled quarter wave stub 16 is placed at one quarter wavelength beyond the receiver branch guide 9. Stub 16 has a glass covered resonant slot in an end wall 19 which is not broken down by the received energy and so presents a short circuit at onehalf wavelength from 9, thus matching the incoming energy into receiver 5. Transmitted energy 7 however, breaks down the slot in wall 19 so that stub 16 does not interfere with the passage of the transmitted energy. The effect of stub 16 over a wide band is increased by placing a second stub 24, Fig. 3, at a quarterwavelength distance. In this case the stub includes dissipative elements (Figs. 4-6 not shown), so that the reactive circuits of the transmitter always have a resistance in series which precludes the building up of strong resonances. Fig. 8 shows a form of resonant gap 32 formed, between two apertures 33, 34 in a metal wall 29. The apertures may be rectangular (Fig. 8 not shown). Specifications 582,760 and 587,812 are referred to.
GB17879/45A 1944-07-17 1945-07-12 Improvements in and relating to ultra high frequency coupling devices and systems Expired GB597662A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US545314A US2408055A (en) 1944-07-17 1944-07-17 Ultra high frequency coupling device and system

Publications (1)

Publication Number Publication Date
GB597662A true GB597662A (en) 1948-01-30

Family

ID=24175731

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17879/45A Expired GB597662A (en) 1944-07-17 1945-07-12 Improvements in and relating to ultra high frequency coupling devices and systems

Country Status (3)

Country Link
US (1) US2408055A (en)
FR (1) FR971746A (en)
GB (1) GB597662A (en)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2623207A (en) * 1945-02-07 1952-12-23 Csf Radio obstacle detector
US2540148A (en) * 1945-03-22 1951-02-06 Sperry Corp Ultra high frequency powerselective protective device
US2688120A (en) * 1945-07-09 1954-08-31 Us Sec War Antitransmit-receive switch
US2491971A (en) * 1945-07-13 1949-12-20 Raytheon Mfg Co Switch tube device for wave guides
US2501052A (en) * 1945-09-14 1950-03-21 Us Sec War High-frequency transmission system
US2603744A (en) * 1945-09-14 1952-07-15 Roland W Larson Tuning mechanism
US2548816A (en) * 1945-09-19 1951-04-10 William M Preston Frequency stabilization of magnetrons
US2683212A (en) * 1945-12-27 1954-07-06 Us Navy Radar-beacon mixer
US2524268A (en) * 1946-01-11 1950-10-03 Sylvania Electric Prod Ultra high frequency resonator
US2681987A (en) * 1946-06-05 1954-06-22 Us Navy Transmission system for radio echo detection systems
NL72081C (en) * 1946-06-21
US2632854A (en) * 1947-12-18 1953-03-24 Westinghouse Electric Corp Resonant cavity drive
US2644926A (en) * 1948-01-09 1953-07-07 Arthur A Varela Electronic switch for highfrequency power
US2646550A (en) * 1948-01-09 1953-07-21 Arthur A Varela Controlled impedance gas discharge device for mechanical transmission mediums
US2691761A (en) * 1948-02-03 1954-10-12 Jr Nicholas M Smith Microwave measuring of projectile speed
US2627573A (en) * 1948-04-28 1953-02-03 Raytheon Mfg Co Wave guide duplexer
US2541375A (en) * 1948-06-04 1951-02-13 Bell Telephone Labor Inc Wave filter
US2627020A (en) * 1949-05-28 1953-01-27 William S Parnell Two-feed "x" band antenna
US2816271A (en) * 1950-11-22 1957-12-10 Gen Electric Microwave mode converter
DE1002474B (en) * 1953-01-22 1957-02-14 Ferranti Ltd Gas discharge tubes with a waveguide section
BE540210A (en) * 1955-04-04
US3076157A (en) * 1959-06-29 1963-01-29 Gen Electric High powered duplexing arrangement
US3337819A (en) * 1965-04-23 1967-08-22 Stafford D Schreyer Transmit-receive switch wherein branch line gas cell has resonant iris at its low power port, whereby iris is protected from peak power
US4686499A (en) * 1984-09-28 1987-08-11 Cincinnati Microwave, Inc. Police radar warning receiver with cantilevered PC board structure
US4613989A (en) * 1984-09-28 1986-09-23 Cincinnati Microwave, Inc. Police radar warning receiver
US6259207B1 (en) * 1998-07-27 2001-07-10 Litton Systems, Inc. Waveguide series resonant cavity for enhancing efficiency and bandwidth in a klystron
EP2615690A3 (en) * 2008-09-15 2014-03-26 VEGA Grieshaber KG Construction kit for a fill state radar antenna

Also Published As

Publication number Publication date
US2408055A (en) 1946-09-24
FR971746A (en) 1951-01-22

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