GB673658A - Improvements relating to electrical coupling arrangements - Google Patents
Improvements relating to electrical coupling arrangementsInfo
- Publication number
- GB673658A GB673658A GB636549A GB636549A GB673658A GB 673658 A GB673658 A GB 673658A GB 636549 A GB636549 A GB 636549A GB 636549 A GB636549 A GB 636549A GB 673658 A GB673658 A GB 673658A
- Authority
- GB
- United Kingdom
- Prior art keywords
- unbalanced
- potentials
- balanced
- coiled
- converted
- 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
- 230000008878 coupling Effects 0.000 title abstract 2
- 238000010168 coupling process Methods 0.000 title abstract 2
- 238000005859 coupling reaction Methods 0.000 title abstract 2
- 239000004020 conductor Substances 0.000 abstract 5
- 230000005540 biological transmission Effects 0.000 abstract 1
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
- H01P5/10—Coupling devices of the waveguide type for linking dissimilar lines or devices for coupling balanced lines or devices with unbalanced lines or devices
Landscapes
- Near-Field Transmission Systems (AREA)
Abstract
673,658. Aerial coupling arrangements. ELECTRIC & MUSICAL INDUSTRIES, Ltd. March 9, 1950 [March 9, 1940], No. 6365/49. Class 40 (v). In an electrical circuit arrangement including a feeder comprising an unscreened pair of parallel conductors connected at one end to a balanced device and at its other end to an unbalanced device, the conductors of the feeder are coiled together adjacent their point of connection with the unbalanced device in such a manner that balanced potentials at the balanced device are converted into unbalanced potentials at said point or unbalanced potentials at said point are converted into balanced potentials at the end of the coiled feeder remote from said point. As shown, a balanced device 1 which may be a dipole aerial is coupled to an unbalanced device 2, for example a radio receiver, via conductors 3 and 4, the ends adjacent device 2 being coiled together to provide a pair of coupled inductances, and optimum energy transfer is obtained if the electrical length of the coiled portion of each conductor is equivalent to an odd number of quarterwavelengths at the transmitted frequency. In some cases improved results may be obtained by spacing the coiled parts from the unbalanced device by a length of uncoiled conductor a quarter-wavelength long. In Fig. 2 (not shown) unbalanced potentials at an unbalanced device are converted into balanced potentials for transmission along an uncoiled portion of line and then converted to unbalanced potentials for feeding a further unbalanced device. Speci. fications 493,758 and 670,340 are referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB636549A GB673658A (en) | 1949-03-09 | 1949-03-09 | Improvements relating to electrical coupling arrangements |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB636549A GB673658A (en) | 1949-03-09 | 1949-03-09 | Improvements relating to electrical coupling arrangements |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB673658A true GB673658A (en) | 1952-06-11 |
Family
ID=9813179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB636549A Expired GB673658A (en) | 1949-03-09 | 1949-03-09 | Improvements relating to electrical coupling arrangements |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB673658A (en) |
-
1949
- 1949-03-09 GB GB636549A patent/GB673658A/en not_active Expired
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