GB297434A - Improvements in or relating to coupling arrangements for use in high frequency circuits - Google Patents
Improvements in or relating to coupling arrangements for use in high frequency circuitsInfo
- Publication number
- GB297434A GB297434A GB27039/28A GB2703928A GB297434A GB 297434 A GB297434 A GB 297434A GB 27039/28 A GB27039/28 A GB 27039/28A GB 2703928 A GB2703928 A GB 2703928A GB 297434 A GB297434 A GB 297434A
- Authority
- GB
- United Kingdom
- Prior art keywords
- phase shift
- phase
- impedance
- combination
- sections
- 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 4
- 238000010168 coupling process Methods 0.000 title abstract 4
- 238000005859 coupling reaction Methods 0.000 title abstract 4
- 230000010363 phase shift Effects 0.000 abstract 8
- 238000003491 array Methods 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/40—Artificial lines; Networks simulating a line of certain length
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
- H03H7/01—Frequency selective two-port networks
- H03H7/0115—Frequency selective two-port networks comprising only inductors and capacitors
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
- H03H7/48—Networks for connecting several sources or loads, working on the same frequency or frequency band, to a common load or source
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Transmitters (AREA)
- Waveguide Switches, Polarizers, And Phase Shifters (AREA)
Abstract
297,434. Marconi's Wireless Telegraph Co., Ltd., (Assignees of Hansell, C. W.). Sept. 21, 1927, [Convention date]. Phase, changing. - A coupling arrangement for obtaining a desired d impedance ratio and a desired phase shift in highfrequency line circuits, applicable for energizing aerial arrays in desired phase relation, comprises two or more cascade-connected impedance-changing devices, the product of the impedance ratios being equal to the desired ratio, and the algebraic sum of the phase shifts being equal to the desired phase shift. As shown in Fig. 3, the coupling comprises two sections 6, 8 and 8, 18 connected between an input line 6 and an output line 18. The first section, of known form per se, comprises series coils 2 and a shunt condenser 4, and the second section also of known form comprises series condensers 14 and a shunt inductance coil 12. The phase shift produced by the combination is the algebraic sum of the individual phase shifts, and as the two sections shown produce phase shifts of opposite sign, the combination may be designed to produce zero phase shift. The impedance ratio of the combination is the product of those of the sections. The Specification includes a. chart to assist in the design of a coupling arrangement for producing a given overall impedance ratio and phase shift.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US221091A US1898180A (en) | 1927-09-21 | 1927-09-21 | Coupling arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB297434A true GB297434A (en) | 1928-12-13 |
Family
ID=22826308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB27039/28A Expired GB297434A (en) | 1927-09-21 | 1928-09-20 | Improvements in or relating to coupling arrangements for use in high frequency circuits |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US1898180A (en) |
| BE (1) | BE354357A (en) |
| DE (1) | DE508899C (en) |
| GB (1) | GB297434A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2187042A (en) * | 1986-02-21 | 1987-08-26 | Plessey Co Plc | Impedance matching circuit for an aerial |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2438367A (en) * | 1942-10-24 | 1948-03-23 | Gen Electric | Transmitter-receiver switching system |
| US2637781A (en) * | 1945-09-14 | 1953-05-05 | Us Navy | Series reactance transformer |
-
0
- BE BE354357D patent/BE354357A/xx unknown
-
1927
- 1927-09-21 US US221091A patent/US1898180A/en not_active Expired - Lifetime
-
1928
- 1928-08-09 DE DER75361D patent/DE508899C/en not_active Expired
- 1928-09-20 GB GB27039/28A patent/GB297434A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2187042A (en) * | 1986-02-21 | 1987-08-26 | Plessey Co Plc | Impedance matching circuit for an aerial |
Also Published As
| Publication number | Publication date |
|---|---|
| BE354357A (en) | |
| DE508899C (en) | 1930-10-04 |
| US1898180A (en) | 1933-02-21 |
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