GB595098A - Improvements in variable reactance devices - Google Patents
Improvements in variable reactance devicesInfo
- Publication number
- GB595098A GB595098A GB14935/45A GB1493545A GB595098A GB 595098 A GB595098 A GB 595098A GB 14935/45 A GB14935/45 A GB 14935/45A GB 1493545 A GB1493545 A GB 1493545A GB 595098 A GB595098 A GB 595098A
- Authority
- GB
- United Kingdom
- Prior art keywords
- points
- length
- reactance
- line
- short
- 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
- 150000001875 compounds Chemical class 0.000 abstract 2
- 230000001939 inductive effect Effects 0.000 abstract 2
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
- H01P5/04—Coupling devices of the waveguide type with variable factor of coupling
Landscapes
- Control Of Motors That Do Not Use Commutators (AREA)
- Coupling Device And Connection With Printed Circuit (AREA)
Abstract
595,098. Impedance-matching. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. June 12, 1945, No. 14935. Convention date, June 13, 1944. [Class 40 (iii)] The reactance presented between the points 13, 23 at the end of a compound coaxial resonator, is transformed by the length l of coaxial line 11, 21 from that between the points 10, 37 ; and the latter comprises the capacitive reactance between the points 37, 35 (which is that of a short length of the open-circuited line 21, 27) in series with the inductive reactance between the points 35, 10 (which is that of a short length of shortcircuited line 27, 11, the short-circuit being provided by the conductive cap 19). The overall length of the compound resonator is a quarter of a wavelength, and the reactance at 13, 23 can be given any inductive value between zero and infinity by turning the knob 29 of the screw-threaded length 27. A pair of feeders 47, 49, Fig. 3, connected to aerials can be matched to a feeder 39, connected to equipment, by adjusting two such resonators 41, 43, spaced at quarter-wavelength intervals.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US540108A US2422160A (en) | 1944-06-13 | 1944-06-13 | Variable reactance device for coaxial lines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB595098A true GB595098A (en) | 1947-11-26 |
Family
ID=24154022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB14935/45A Expired GB595098A (en) | 1944-06-13 | 1945-06-12 | Improvements in variable reactance devices |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US2422160A (en) |
| GB (1) | GB595098A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1065037B (en) * | 1957-02-09 | 1959-09-10 | Phil Nat Dr Med H C Dr Med H C | Adjustable inductive transformer for a large wavelength range for coupling double lines or double line resonators with double lines, hollow pipelines, double line resonators or cavity resonators |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2523725A (en) * | 1945-11-03 | 1950-09-26 | Western Electric Co | Tuning plunger for variable resonant cavities |
| US2705307A (en) * | 1946-02-01 | 1955-03-29 | Nyswander R Edson | Double slug tuner |
| US2560685A (en) * | 1946-10-24 | 1951-07-17 | Rca Corp | Variable inductance for use on very high frequencies |
| US2556001A (en) * | 1947-01-02 | 1951-06-05 | Bell Telephone Labor Inc | Microwave impedance matching reactor |
| US2572672A (en) * | 1947-05-06 | 1951-10-23 | Bell Telephone Labor Inc | Impedance transforming network |
| US2645679A (en) * | 1947-11-29 | 1953-07-14 | Standard Telephones Cables Ltd | Method of controlling susceptance of a post type obstacle |
| US2679591A (en) * | 1948-03-13 | 1954-05-25 | Sylvania Electric Prod | Ultrahigh-frequency apparatus |
| US2984798A (en) * | 1959-08-26 | 1961-05-16 | Harold E Bryan | Duplexer |
| US3264584A (en) * | 1961-11-15 | 1966-08-02 | Bell Telephone Labor Inc | Adjustable impedance matching transformers |
| JP3710652B2 (en) * | 1999-08-03 | 2005-10-26 | 三菱電機株式会社 | Strip line feeder |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL50891C (en) * | 1937-01-04 | |||
| US2159648A (en) * | 1937-09-08 | 1939-05-23 | Mackay Radio & Telegraph Co | Transmission modifying network |
| US2171219A (en) * | 1937-12-30 | 1939-08-29 | Rca Corp | High frequency condenser |
-
1944
- 1944-06-13 US US540108A patent/US2422160A/en not_active Expired - Lifetime
-
1945
- 1945-06-12 GB GB14935/45A patent/GB595098A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1065037B (en) * | 1957-02-09 | 1959-09-10 | Phil Nat Dr Med H C Dr Med H C | Adjustable inductive transformer for a large wavelength range for coupling double lines or double line resonators with double lines, hollow pipelines, double line resonators or cavity resonators |
Also Published As
| Publication number | Publication date |
|---|---|
| US2422160A (en) | 1947-06-10 |
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