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 durationInfo
- 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
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
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Plasma Technology (AREA)
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.
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)
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 |
GB2237693A (en) * | 1989-11-02 | 1991-05-08 | British Aerospace | Waveguide coupling networks |
GB2237692A (en) * | 1989-11-02 | 1991-05-08 | British Aerospace | Waveguide 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***研究院有限公司 | W-waveband multi-path waveguide power synthesis system for active rejection |
-
1959
- 1959-07-02 GB GB2267759A patent/GB890846A/en not_active Expired
Cited By (7)
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 |
GB2237693A (en) * | 1989-11-02 | 1991-05-08 | British Aerospace | Waveguide coupling networks |
GB2237692A (en) * | 1989-11-02 | 1991-05-08 | British Aerospace | Waveguide 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***研究院有限公司 | W-waveband multi-path waveguide power synthesis system for active rejection |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB667290A (en) | Improvements in microwave circuits | |
US2914249A (en) | Microwave data processing circuits | |
GB890846A (en) | Improvements relating to devices for producing micro-wave energy pulses of required time duration | |
GB1226997A (en) | ||
US2934658A (en) | Microwave switching circuits | |
GB1524894A (en) | Transmission line filters and radar system | |
GB805510A (en) | Improvements in or relating to electromagnetic waveguide couplings | |
GB1181597A (en) | Bidirectional Ferrite Phase-Shifter. | |
GB1305865A (en) | ||
GB1151289A (en) | Radio Frequency Heating Apparatus | |
GB994507A (en) | Improvements in or relating to electron beam tubes | |
JPS5514757A (en) | T-type waveguide branching unit | |
US3691463A (en) | Leakage waveguide line from which energy is continually leaked along the path followed by the leakage waveguide line | |
US2976492A (en) | Solid state maser | |
US3134024A (en) | Information handling devices | |
JPS6143690B2 (en) | ||
GB986494A (en) | Improvements relating to coupling devices for high frequency electrical circuits | |
GB706824A (en) | Improvements in or relating to electrical wave-guide systems for producing a phase difference between two output waves | |
GB879677A (en) | Improvements in or relating to magnetron circuit arrangements | |
GB1119879A (en) | Improvements relating to modulators | |
GB794441A (en) | Improvements in or relating to duplexers | |
ES337958A1 (en) | Improvements in or relating to Delay Equalizers | |
GB926343A (en) | Microwave duplexer | |
JPS5535529A (en) | Slot coupled line type mic magic t | |
SU429499A1 (en) | DEVICE FOR SYNCHRONIZATION UHF-AUTOGENERATORS |