GB608738A - Improvements in transmission line arrangements - Google Patents
Improvements in transmission line arrangementsInfo
- Publication number
- GB608738A GB608738A GB6358/46A GB635846A GB608738A GB 608738 A GB608738 A GB 608738A GB 6358/46 A GB6358/46 A GB 6358/46A GB 635846 A GB635846 A GB 635846A GB 608738 A GB608738 A GB 608738A
- Authority
- GB
- United Kingdom
- Prior art keywords
- line
- section
- stub
- surge impedance
- unbalanced
- 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
- 230000005540 biological transmission Effects 0.000 title abstract 2
- 239000004020 conductor Substances 0.000 abstract 4
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 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
- Transmitters (AREA)
- Details Of Aerials (AREA)
- Measurement Of Resistance Or Impedance (AREA)
Abstract
608,738. Aerial coupling arrangements. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. March 1, 1946, No. 6358. Convention date, Jan. 17, 1945. [Class 40 (v)] Relates to transmission line arrangements for transferring ratio frequency power from an unbalanced to a balanced circuit. In one embodiment, the two balanced coaxial lines 11 and 13 are connected in series and feed loads Z, Z<1>. A sleeve 1 surrounds the final quarter wavelength section of line 13, being closed at the remote end by a disc 7 connected to its outer conductor. The source E feeds the unbalanced line 5, of surge impedance Zo, which is connected through a half wavelength section of line 15 of surge impedance Zc. Across the junction of lines 5, 15 is connected a shortcircuited quarter-wave stub 17 of surge impedance Zs, equal to that of the stub 1, 13. The inner conductor of section 15 is connected to the outer conductor of line 13, and the outer conductors of section 15 and line 11 are connected to the sleeve 1. It is stated that efficient conversion is obtained throughout a broad band of frequencies if the quantity Zc/Zo has a value within the range 90 to 100 per cent of that of the quantity In another embodiment, Fig. 3 (not shown), the stub 17 and line section 15 are omitted.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US573217A US2517968A (en) | 1945-01-17 | 1945-01-17 | Line balance converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB608738A true GB608738A (en) | 1948-09-20 |
Family
ID=24291084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB6358/46A Expired GB608738A (en) | 1945-01-17 | 1946-03-01 | Improvements in transmission line arrangements |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US2517968A (en) |
| GB (1) | GB608738A (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2997459A (en) * | 1961-08-22 | Thermoplastic synthetic materials of | ||
| US2575471A (en) * | 1950-04-13 | 1951-11-20 | Philco Corp | Vehicular antenna system |
| US2966640A (en) * | 1958-05-29 | 1960-12-27 | Singer Inc H R B | Flexible bazooka balun |
| WO1988009926A1 (en) * | 1987-06-02 | 1988-12-15 | Thomson-Cgr | Receiving aerial for nmr imaging apparatus |
| FR2594232B1 (en) * | 1986-02-07 | 1988-07-15 | Thomson Cgr | RECEIVING ANTENNA FOR NUCLEAR MAGNETIC RESONANCE IMAGING APPARATUS |
| EP0239426B1 (en) * | 1986-02-07 | 1990-05-23 | General Electric Cgr S.A. | Receiving antenna for a nuclear magnetic resonance imaging apparatus |
| US4916415A (en) * | 1989-01-17 | 1990-04-10 | Tektronix, Inc. | Balanced, impedance matched, coupling device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2249963A (en) * | 1939-11-15 | 1941-07-22 | Rca Corp | Impedance transformation means |
| NL62109C (en) * | 1940-01-23 |
-
1945
- 1945-01-17 US US573217A patent/US2517968A/en not_active Expired - Lifetime
-
1946
- 1946-03-01 GB GB6358/46A patent/GB608738A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2517968A (en) | 1950-08-08 |
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