GB718828A - Improvements in or relating to apparatus of the kind including a waveguide - Google Patents
Improvements in or relating to apparatus of the kind including a waveguideInfo
- Publication number
- GB718828A GB718828A GB171652A GB171652A GB718828A GB 718828 A GB718828 A GB 718828A GB 171652 A GB171652 A GB 171652A GB 171652 A GB171652 A GB 171652A GB 718828 A GB718828 A GB 718828A
- Authority
- GB
- United Kingdom
- Prior art keywords
- guide
- waveguide
- wires
- probe
- spaced
- 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
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/06—Waveguide mouths
Landscapes
- Control Of Motors That Do Not Use Commutators (AREA)
- Transducers For Ultrasonic Waves (AREA)
Abstract
718,828. Waveguides. GENERAL ELECTRIC CO., Ltd., and FISHER, F. J. Jan. 21, 1953 [Jan. 21, 1952], No. 1716/52. Class 40 (8). [Also in Group XL(c)] Two spaced couplings in a rectangular waveguide are adapted to transfer energy propagated in two different modes and are separated by a mode filter. The couplings, in the form of probes 7, 8, lie at right angles to each other and are disposed respectively at distances #/2 and # from the open end of the waveguide 1. They are excited respectively by waves propagated in the H 01 mode having their electric fields polarized in planes parallel to different sides of the waveguide. The mode filter 16, spaced #/4 from the probe 7, acts as a reflector for the energy associated with the probe 7 and as an attenuator for the energy associated with the probe 8. It comprises spaced parallel wires 17 attached to a frame 18 which is e'ectrically connected to the walls of the waveguide by fingers 23. Additional wires 19 lying directly behind wires 17 prevent spurious resonances behind the filter 16. The frame is adjustable along the guide in slots 21. The guide is terminated by an adjustable metal plunger 11 mounted upon a rubber disc 12 which is a close fit in the guide. Metal fingers 14 electrically connect the plunger to the guide. To prevent mismatch at the open end of the guide (which may be directed towards a reflector) inductive loading in the form of two wires 28 may be provided. The guide may be sealed by a mica window 24.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB171652A GB718828A (en) | 1952-01-21 | 1952-01-21 | Improvements in or relating to apparatus of the kind including a waveguide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB171652A GB718828A (en) | 1952-01-21 | 1952-01-21 | Improvements in or relating to apparatus of the kind including a waveguide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB718828A true GB718828A (en) | 1954-11-24 |
Family
ID=9726775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB171652A Expired GB718828A (en) | 1952-01-21 | 1952-01-21 | Improvements in or relating to apparatus of the kind including a waveguide |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB718828A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1020070B (en) * | 1955-09-02 | 1957-11-28 | Gen Electric Co Ltd | Device with a waveguide with a rectangular cross-section for the transmission of waves polarized perpendicular to one another |
| DE1081086B (en) * | 1956-01-04 | 1960-05-05 | Gen Electric Co Ltd | Waveguide device |
| US4529989A (en) * | 1981-06-05 | 1985-07-16 | Thomson-Csf | Microwave radiation source comprising open cavities energized by two dipoles |
| US4596047A (en) * | 1981-08-31 | 1986-06-17 | Nippon Electric Co., Ltd. | Satellite broadcasting receiver including a parabolic antenna with a feed waveguide having a microstrip down converter circuit |
-
1952
- 1952-01-21 GB GB171652A patent/GB718828A/en not_active Expired
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1020070B (en) * | 1955-09-02 | 1957-11-28 | Gen Electric Co Ltd | Device with a waveguide with a rectangular cross-section for the transmission of waves polarized perpendicular to one another |
| US2979679A (en) * | 1955-09-02 | 1961-04-11 | Gen Electric Co Ltd | Apparatus of the kind including a waveguide |
| DE1081086B (en) * | 1956-01-04 | 1960-05-05 | Gen Electric Co Ltd | Waveguide device |
| US2985852A (en) * | 1956-01-04 | 1961-05-23 | Gen Electric Co Ltd | Apparatus of the kind including a waveguide |
| US4529989A (en) * | 1981-06-05 | 1985-07-16 | Thomson-Csf | Microwave radiation source comprising open cavities energized by two dipoles |
| US4596047A (en) * | 1981-08-31 | 1986-06-17 | Nippon Electric Co., Ltd. | Satellite broadcasting receiver including a parabolic antenna with a feed waveguide having a microstrip down converter circuit |
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