GB890846A - Improvements relating to devices for producing micro-wave energy pulses of required time duration - Google Patents

Improvements relating to devices for producing micro-wave energy pulses of required time duration

Info

Publication number
GB890846A
GB890846A GB2267759A GB2267759A GB890846A GB 890846 A GB890846 A GB 890846A GB 2267759 A GB2267759 A GB 2267759A GB 2267759 A GB2267759 A GB 2267759A GB 890846 A GB890846 A GB 890846A
Authority
GB
United Kingdom
Prior art keywords
pulses
sections
energy
control pulses
discharge tubes
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
GB2267759A
Inventor
George Seymour Baldock
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.)
Ferranti International PLC
Original Assignee
Ferranti 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 Ferranti PLC filed Critical Ferranti PLC
Priority to GB2267759A priority Critical patent/GB890846A/en
Publication of GB890846A publication Critical patent/GB890846A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/10—Auxiliary devices for switching or interrupting
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
    • H03K5/01—Shaping pulses
    • H03K5/04—Shaping pulses by increasing duration; by decreasing duration

Abstract

890,846. Pulsing radio frequencies. FERRANTI Ltd. June 30, 1960 [July 2, 1959], No. 22677/59. Class 40(5). [Also in Group XL(b)] Very short microwave pulses are produced by applying longer pulses, e.g. from a magnetron, to one of two waveguide or other transmission lines 1, 4 connected by a pair of 3db directional couplers 7, 8 so that normally all energy passes to a dummy load 15 terminating one line, then shortening in turn by control pulses the transmission time in each line by an odd number of half wavelengths so that energy is diverted to an antenna or other load connected to the other line for the short time interval between the leading edges of the control pulses, the later control pulse directing energy supply again to the dummy load. As shown the waveguides 1, 4 may each comprise two sections 1, 2 and 4, 5 each coupled by a 3db coupler 3, 6 and each terminated by reflecting short circuits 11, 12, 14, 16 such that energy is wholly directed into the second sections 2, 5. Further, the sections are both traversed at an odd number of quarter wavelengths from the short circuits by discharge tubes 18, 17 fired in turn by the control pulses to provide short circuits instead at the discharge tubes. The transmitted output pulse may be much shorter than the recovery time of the discharge tubes. In a modification a phase shifter is inserted in each of a pair of directionally coupled transmission lines and each in turn made to give a 180 degrees phase shift by control pulses.
GB2267759A 1959-07-02 1959-07-02 Improvements relating to devices for producing micro-wave energy pulses of required time duration Expired GB890846A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2267759A GB890846A (en) 1959-07-02 1959-07-02 Improvements relating to devices for producing micro-wave energy pulses of required time duration

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2267759A GB890846A (en) 1959-07-02 1959-07-02 Improvements relating to devices for producing micro-wave energy pulses of required time duration

Publications (1)

Publication Number Publication Date
GB890846A true GB890846A (en) 1962-03-07

Family

ID=10183324

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2267759A Expired GB890846A (en) 1959-07-02 1959-07-02 Improvements relating to devices for producing micro-wave energy pulses of required time duration

Country Status (1)

Country Link
GB (1) GB890846A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3955157A (en) * 1975-01-23 1976-05-04 Western Electric Company, Inc. Wave guide pulse generator producing narrow width pulse
GB2237692A (en) * 1989-11-02 1991-05-08 British Aerospace Waveguide networks
GB2237693A (en) * 1989-11-02 1991-05-08 British Aerospace Waveguide coupling networks
US5105170A (en) * 1989-07-15 1992-04-14 British Aerospace Public Limited Company Waveguide coupling networks
CN114421108A (en) * 2021-12-23 2022-04-29 航天科工微电子系统研究院有限公司 W-waveband multi-path waveguide power synthesis system for active rejection

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3955157A (en) * 1975-01-23 1976-05-04 Western Electric Company, Inc. Wave guide pulse generator producing narrow width pulse
US5105170A (en) * 1989-07-15 1992-04-14 British Aerospace Public Limited Company Waveguide coupling networks
GB2237692A (en) * 1989-11-02 1991-05-08 British Aerospace Waveguide networks
GB2237693A (en) * 1989-11-02 1991-05-08 British Aerospace Waveguide coupling networks
GB2237692B (en) * 1989-11-02 1994-02-09 British Aerospace Waveguide networks
GB2237693B (en) * 1989-11-02 1994-03-16 British Aerospace Waveguide coupling networks
CN114421108A (en) * 2021-12-23 2022-04-29 航天科工微电子系统研究院有限公司 W-waveband multi-path waveguide power synthesis system for active rejection

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