GB1036749A - Improvements in or relating to waveguide couplings - Google Patents
Improvements in or relating to waveguide couplingsInfo
- Publication number
- GB1036749A GB1036749A GB2959063A GB2959063A GB1036749A GB 1036749 A GB1036749 A GB 1036749A GB 2959063 A GB2959063 A GB 2959063A GB 2959063 A GB2959063 A GB 2959063A GB 1036749 A GB1036749 A GB 1036749A
- Authority
- GB
- United Kingdom
- Prior art keywords
- section
- transition
- output end
- input end
- rectangular
- 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
- H01P5/00—Coupling devices of the waveguide type
- H01P5/08—Coupling devices of the waveguide type for linking dissimilar lines or devices
- H01P5/082—Transitions between hollow waveguides of different shape, e.g. between a rectangular and a circular waveguide
Landscapes
- Optical Integrated Circuits (AREA)
Abstract
1,036,749. Waveguides. MARCONI CO. Ltd. July 9, 1964 [July 25, 1963], No. 29590/63. Heading H1W. The waveguide transition of Specification 805,510, for transforming the TE 01 rectangular mode to the TE 01 circular mode, improved in that it is dimensioned in such a manner that the guided wavelength is constant over the length of the transition within the transmission frequency band. The known transition comprises a first section a in which a rectangular input end 5 is transformed by a double taper to a rectangular output end lying at right angles to the input end and having a major dimension twice that of the input end. This is followed by a section b transforming between a rectangular input end and a symmetrical cruciform output end and by a section c in which the cruciform section is transformed to a circular section. The first section may be improved by spacing the start of one of the tapers from the end of the section, e.g. at the position 6, whereby it extends over three-quarters the length of the section. Both tapers may be modified in this way and the tapers may be curved, e.g. according to a cos<SP>2</SP> curve. The first section is preferably three wavelengths long. A further method of improving the first section consists in so dimensioning the L-shaped symmetrical halves of the transition that they have a constant cut-off frequency at any section preferably equal to the cut-off frequency of the initial section 5. The dimensions of the cruciform section are such that the width d (minor dimension) of the arms is smaller than the value given by the equation # h =d.2#2, where # h is the free-space wavelength corresponding to the highest operating frequency. Preferably, the diameter of the circular output end of the third section is made greater than the longer side of the output end of the first section and this increase of dimension may be achieved either by a progressive increase extending over the whole transition or over only the third section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2959063A GB1036749A (en) | 1963-07-25 | 1963-07-25 | Improvements in or relating to waveguide couplings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2959063A GB1036749A (en) | 1963-07-25 | 1963-07-25 | Improvements in or relating to waveguide couplings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1036749A true GB1036749A (en) | 1966-07-20 |
Family
ID=10293943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2959063A Expired GB1036749A (en) | 1963-07-25 | 1963-07-25 | Improvements in or relating to waveguide couplings |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1036749A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110649353A (en) * | 2019-11-04 | 2020-01-03 | 南京屹信航天科技有限公司 | Waveguide mode converter |
| WO2020208595A1 (en) * | 2019-04-11 | 2020-10-15 | Swissto12 Sa | Waveguide device and method for producing said device |
-
1963
- 1963-07-25 GB GB2959063A patent/GB1036749A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020208595A1 (en) * | 2019-04-11 | 2020-10-15 | Swissto12 Sa | Waveguide device and method for producing said device |
| FR3095082A1 (en) * | 2019-04-11 | 2020-10-16 | Swissto12 Sa | Oval section waveguide device and method of manufacturing said device |
| US11923591B2 (en) | 2019-04-11 | 2024-03-05 | Swissto12 Sa | Waveguide device and method of manufacturing this device |
| US11923592B2 (en) | 2019-04-11 | 2024-03-05 | Swissto12 Sa | Waveguide device and method of manufacturing this device |
| CN110649353A (en) * | 2019-11-04 | 2020-01-03 | 南京屹信航天科技有限公司 | Waveguide mode converter |
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