GB1468310A - Microwave cavity resonators - Google Patents
Microwave cavity resonatorsInfo
- Publication number
- GB1468310A GB1468310A GB689275A GB689275A GB1468310A GB 1468310 A GB1468310 A GB 1468310A GB 689275 A GB689275 A GB 689275A GB 689275 A GB689275 A GB 689275A GB 1468310 A GB1468310 A GB 1468310A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cavity
- cavities
- pins
- end walls
- radial
- 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
- H01P1/20—Frequency-selective devices, e.g. filters
- H01P1/207—Hollow waveguide filters
- H01P1/208—Cascaded cavities; Cascaded resonators inside a hollow waveguide structure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/16—Auxiliary devices for mode selection, e.g. mode suppression or mode promotion; for mode conversion
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P7/00—Resonators of the waveguide type
- H01P7/06—Cavity resonators
Abstract
1468310 Resonators and filters MICROWAVE ASSOCIATES Inc 18 Feb 1975 [8 April 1974] 6892/75 Heading H1W A tubular cavity resonator is excited to resonate in the circular-electric TE 01n mode and is provided with one or more axially-oriented conductive pins for supression of other modes, notably TM modes. Fig. 5 shows a filter made from a coupler series of such resonators. A typical resonator 53 is provided with up to four pins 84 or 84<SP>1</SP> arranged symmetrically about the cavity axis on one or both end walls of the cavity at a radial position where they couple most strongly with the axial electric field of the unwanted TM mode. The resonator may also be provided with pins (not shown) extending radially from the cylindrical wall at a position intermediate the end walls. Such pins couple with a radial electric component of the TM mode. The cavities are arranged alternatively on either side of a plate 41, forming a common end wall, which is provided with inter-cavity coupling apertures 43-46 and input/output coupling apertures 42, 47. The coupling apertures are tuned by adjustable radial screws 42<SP>1</SP>-47<SP>1</SP>. The cavities are tuned by screws 89-93 located in the centres of the end walls 71-75. The specification also describes a single-cavity filter (Fig. 1, not shown), and a double-cavity filter (Fig. 2, not shown). In the latter the cavities are endcoupled to input/output waveguides, and are end-coupled to each other. Tuning of the cavities is effected by a radial screw located in the cylindrical wall intermediate the end walls.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US458564A US3899759A (en) | 1974-04-08 | 1974-04-08 | Electric wave resonators |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1468310A true GB1468310A (en) | 1977-03-23 |
Family
ID=23821269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB689275A Expired GB1468310A (en) | 1974-04-08 | 1975-02-18 | Microwave cavity resonators |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3899759A (en) |
| JP (1) | JPS5642162B2 (en) |
| BE (1) | BE827630A (en) |
| DE (1) | DE2510854A1 (en) |
| GB (1) | GB1468310A (en) |
| IT (1) | IT1035183B (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| DE2510854A1 (en) | 1975-10-09 |
| BE827630A (en) | 1975-07-31 |
| US3899759A (en) | 1975-08-12 |
| JPS50138757A (en) | 1975-11-05 |
| IT1035183B (en) | 1979-10-20 |
| JPS5642162B2 (en) | 1981-10-02 |
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| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |