GB549721A - Improvements in methods of tuning electric circuits adapted to operate at high frequencies - Google Patents
Improvements in methods of tuning electric circuits adapted to operate at high frequenciesInfo
- Publication number
- GB549721A GB549721A GB1291241A GB1291241A GB549721A GB 549721 A GB549721 A GB 549721A GB 1291241 A GB1291241 A GB 1291241A GB 1291241 A GB1291241 A GB 1291241A GB 549721 A GB549721 A GB 549721A
- Authority
- GB
- United Kingdom
- Prior art keywords
- operate
- methods
- high frequencies
- electric circuits
- characteristic
- 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
- H01P7/02—Lecher resonators
Landscapes
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
549,721. High frequency circuits. GENERAL ELECTRIC CO., Ltd., CAVIN, M. R., and HEATHCOTE, V: A. Oct 6, 1941, No. 12912. [Class 40 (iii)] In a circuit of the kind in which a capacity, which may be the interelectrode capacity of a valve, is tuned by a transmission line with an adjustable bridge, the transmission line. is in two or more parts having different characteristic impedances connected end to end, each part with. a smaller characteristic. impedance being, nearer to the condenser than any part with a greater characteristic' impedance. As shown, the parts consist of a co-axial section 1; 2 and a parallel rod section. 3 with a slider 4. The rods are 3 mm. and the cylinder 6 mm. in diameter and the respective characteristic impedances are 40 and 230 ohms.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1291241A GB549721A (en) | 1941-10-06 | 1941-10-06 | Improvements in methods of tuning electric circuits adapted to operate at high frequencies |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1291241A GB549721A (en) | 1941-10-06 | 1941-10-06 | Improvements in methods of tuning electric circuits adapted to operate at high frequencies |
Publications (1)
Publication Number | Publication Date |
---|---|
GB549721A true GB549721A (en) | 1942-12-03 |
Family
ID=10013407
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1291241A Expired GB549721A (en) | 1941-10-06 | 1941-10-06 | Improvements in methods of tuning electric circuits adapted to operate at high frequencies |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB549721A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2794150A (en) * | 1954-01-18 | 1957-05-28 | Patelhold Patentverwertung | Tuning arrangement for single circuit magnetron |
-
1941
- 1941-10-06 GB GB1291241A patent/GB549721A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2794150A (en) * | 1954-01-18 | 1957-05-28 | Patelhold Patentverwertung | Tuning arrangement for single circuit magnetron |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB650443A (en) | Improvements in or relating to high frequency electron discharge tube structures | |
GB533939A (en) | Improvements in high frequency electric apparatus | |
GB537798A (en) | Improvements in or relating to oscillatory circuits for short electromagnetic waves | |
ES353242A1 (en) | Single control multiband variable capacitance diode tv tuner | |
GB691580A (en) | High q frequency tuner | |
GB515739A (en) | Improvements in electrical frequency selective apparatus | |
GB546141A (en) | Improvements in or relating to wireless receivers | |
GB549721A (en) | Improvements in methods of tuning electric circuits adapted to operate at high frequencies | |
GB496647A (en) | Improvements in or relating to electric high frequency signalling systems | |
GB517052A (en) | High frequency transmission networks | |
GB580812A (en) | Improvements in arrangements for coupling wide frequency band antennae to transmission lines | |
GB654037A (en) | Tuning system for short waves | |
GB557942A (en) | Broad band antenna | |
GB766612A (en) | Resonant cavity arrangement | |
CH200859A (en) | High-frequency amplifier with at least two cascade-connected oscillating circuits coupled by means of an amplifier tube and tuned to the same frequency. | |
GB491903A (en) | Improvements in or relating to circuit arrangements for suppressing undesired frequencies in wireless receiving apparatus | |
ES202806A1 (en) | Wide-band amplifier circuits for television receivers and the like | |
GB706066A (en) | Improvements in or relating to sound rejection circuits for television receivers | |
GB563689A (en) | Improvements in or relating to electric potential transforming networks | |
GB588310A (en) | Improvements in electric high-frequency tuning devices | |
GB523074A (en) | Improvements in or relating to radio receiving systems | |
GB476906A (en) | Improvements in or relating to high frequency oscillators | |
GB594622A (en) | Improvements in or relating to concentric-line resonant circuits | |
GB577462A (en) | Improvements in electric multistage amplifiers | |
GB617312A (en) | Improvements in or relating to superheterodyne radio-receivers with image-frequency suppression |