GB594622A - Improvements in or relating to concentric-line resonant circuits - Google Patents
Improvements in or relating to concentric-line resonant circuitsInfo
- Publication number
- GB594622A GB594622A GB1590945A GB1590945A GB594622A GB 594622 A GB594622 A GB 594622A GB 1590945 A GB1590945 A GB 1590945A GB 1590945 A GB1590945 A GB 1590945A GB 594622 A GB594622 A GB 594622A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sleeve
- resonators
- rack
- working frequencies
- grounded
- 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
- H01P7/00—Resonators of the waveguide type
- H01P7/04—Coaxial resonators
Landscapes
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
594,622. Electric resonators. ALDER. L. S. B., SLAFFER, M., MITCHELL, F. A., and BUCKINGHAM, J. June 21, 1945, No. 15909. [Classes 40 (iii) and 40 (v)] An aerial is coupled to the preselector stage of a radio receiver through a coaxial resonator 1,2, tapped at 18, 23 near the short-circuited and grounded end 3 so as to provide high selectivity even with grounded-grid valves at very highfrequencies, and tuned by means of a sleeve 5 which slides on the inner conductor 2 and is of larger diameter so as to increase the effective length of the line, contact fingers 7 being provided. The sleeve 5 is positioned by insulating spacers 8 and is moved axially by means of a rod 11 co-operating with a pinion 10 and rack, Fig. 2 (not shown), and clamped in position. A scale and pointer indicate the frequency. The lead 18 may be taken to a point on the shortcircuiting plate 3, Fig. 3A (not shown). Two such resonators may be connected in tandem, Figs. 4, 5 (not shown), the tuning-rods 11 being connected to a rack-operated yoke by screws by means of which the resonators can be aligned at the lower working frequencies. Each outer conductor 1 carries in this case a resilient strip which is in capacitive relation with the sleeve 5 and can be adjusted for effecting alignment at the higher working frequencies,
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB594622A true GB594622A (en) | 1947-11-14 |
Family
ID=1731911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1590945A Expired GB594622A (en) | 1945-06-21 | Improvements in or relating to concentric-line resonant circuits |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB594622A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2683862A (en) * | 1951-07-11 | 1954-07-13 | Raytheon Mfg Co | Tunable resonant structure |
| US2782265A (en) * | 1952-07-24 | 1957-02-19 | Stankey John Edward | Radio frequency oscillator-amplifier tuning unit |
| DE1241007B (en) * | 1956-09-01 | 1967-05-24 | Siemens Ag | Tunable filter circuit for very short electromagnetic waves |
-
1945
- 1945-06-21 GB GB1590945A patent/GB594622A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2683862A (en) * | 1951-07-11 | 1954-07-13 | Raytheon Mfg Co | Tunable resonant structure |
| US2782265A (en) * | 1952-07-24 | 1957-02-19 | Stankey John Edward | Radio frequency oscillator-amplifier tuning unit |
| DE1241007B (en) * | 1956-09-01 | 1967-05-24 | Siemens Ag | Tunable filter circuit for very short electromagnetic waves |
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