GB731473A - Improvements in or relating to electromagnetic wave-guiding members and apparatus - Google Patents
Improvements in or relating to electromagnetic wave-guiding members and apparatusInfo
- Publication number
- GB731473A GB731473A GB4097/53A GB409753A GB731473A GB 731473 A GB731473 A GB 731473A GB 4097/53 A GB4097/53 A GB 4097/53A GB 409753 A GB409753 A GB 409753A GB 731473 A GB731473 A GB 731473A
- Authority
- GB
- United Kingdom
- Prior art keywords
- guide
- coupler
- energy
- arms
- detector
- 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
- H01P5/12—Coupling devices having more than two ports
- H01P5/16—Conjugate devices, i.e. devices having at least one port decoupled from one other port
- H01P5/18—Conjugate devices, i.e. devices having at least one port decoupled from one other port consisting of two coupled guides, e.g. directional couplers
- H01P5/188—Conjugate devices, i.e. devices having at least one port decoupled from one other port consisting of two coupled guides, e.g. directional couplers the guides being dielectric waveguides
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P3/00—Waveguides; Transmission lines of the waveguide type
- H01P3/16—Dielectric waveguides, i.e. without a longitudinal conductor
Abstract
731,473. R.-F. power measurements. WESTERN ELECTRIC CO., Inc. Feb. 13, 1953 [March 1, 1952], No. 4097/53. Class 37. [Also in Group XL (b)] A standing-wave detector for measuring the degree of match between a wave-guide and a load in the millimetric range comprises a network of dielectric-strip guides of non-circular, e.g. oval or rectangular, cross-section (see Group XL (b)). Two such guides 26, 27, Fig. 2, may be held spaced from each other in a dielectric block 28 to form a directional coupler. A coupler 80, Fig. 7, of this kind is arranged to sample energy at different points on a dielectric strip guide 83, the block 84 being slidable upon the guide 83. A further coupler 90, similar to the coupler of Fig. 2, is arranged to have a 3 db. coupling factor so that energy in either of the arms 86, 87 is divided equally between the arms 88, 89. Under these circumstances a fraction of the energy proceeding from a source 81 is coupled into the arm 86 and a fraction of the energy reflected from a mismatched load 82 is coupled into the arm 87. Both these fractions are distributed equally between a matched load 91 and a detector 92. The detector will thus register a quantity proportional to the sum of the forward and reflected energies in the guide 83 and will give a series of maximum and minimum readings as the coupler 84 is moved along this guide. In order to calibrate the instrument the guide 83 is terminated by a completely reflecting termination and a suitable attenuator 94 incorporated in one of the arms 86, 87 to obtain zero readings for the minima. Specification 706,234, [Group XL (b)], is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US274313A US2794959A (en) | 1952-03-01 | 1952-03-01 | Directional coupler for all-dielectric waveguide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB731473A true GB731473A (en) | 1955-06-08 |
Family
ID=23047681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4097/53A Expired GB731473A (en) | 1952-03-01 | 1953-02-13 | Improvements in or relating to electromagnetic wave-guiding members and apparatus |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2794959A (en) |
| DE (1) | DE964693C (en) |
| GB (1) | GB731473A (en) |
| NL (2) | NL175381B (en) |
Cited By (158)
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|---|---|---|---|---|
| US3493897A (en) * | 1967-05-16 | 1970-02-03 | Western Electric Co | Dielectric directional coupler |
| US6147569A (en) * | 1998-07-21 | 2000-11-14 | Kyocera Corporation | Non-radiative dielectric waveguide coupler |
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Also Published As
| Publication number | Publication date |
|---|---|
| NL175381B (en) | |
| NL97161C (en) | |
| DE964693C (en) | 1957-05-29 |
| US2794959A (en) | 1957-06-04 |
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