GB725628A - Improvements relating to variable phase-shifting networks - Google Patents
Improvements relating to variable phase-shifting networksInfo
- Publication number
- GB725628A GB725628A GB17826/53A GB1782653A GB725628A GB 725628 A GB725628 A GB 725628A GB 17826/53 A GB17826/53 A GB 17826/53A GB 1782653 A GB1782653 A GB 1782653A GB 725628 A GB725628 A GB 725628A
- Authority
- GB
- United Kingdom
- Prior art keywords
- phase
- condensers
- coils
- networks
- shifting
- 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
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
- H03H7/18—Networks for phase shifting
- H03H7/20—Two-port phase shifters providing an adjustable phase shift
Landscapes
- Ac-Ac Conversion (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
Abstract
725,628. Phase-shifting. METROPOLITANVICKERS ELECTRICAL CO., Ltd. June 26, 1953 [June 27, 1952], No. 17826/53. Class 38 (2). [Also in Group XL (c)] A variable phaseshifting network, particularly applicable to the phase modulation of a carrier wave, comprises two or more similar phase-shifting circuits arranged in cascade and fed from the wave source, a control or modulating voltage being applied to vary the phase characteristic of all the circuits so as to produce a resultant phase shift which is the sum of the individual phase shifts. Fig. 4 shows a system employing two similar phase-shifting networks 4, 5, each comprising two condensers 24, 25 in series in one lead from a source feeding carrier current through the networks to a load. An inductance coil 22 shunts each pair of condensers, and a coil 23 is connected between the condenser junction and the other carrier lead. The condensers may be of the type in which the capacity varies with the applied voltage. As shown, a modulating signal applied at the terminals 34, 35 appears across each condenser, the coils 22, 23 and the carrier choke 33 having negligible impedance at the modulating frequencies. The aerial or other load is connected at the points 29, 30 and an impedance 6 matches the line to the load. In Fig. 5, the modulation signal is applied at terminals 40, 41 to coils 37, 39 arranged to vary the inductance of the series and shunt coils 22, 23 of each unit 4, 5. The positions of the coils and condensers in the networks may be interchanged; and an additional condenser 26 may be connected across the coil 22.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1066187T | 1952-06-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB725628A true GB725628A (en) | 1955-03-09 |
Family
ID=9602584
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB17826/53A Expired GB725628A (en) | 1952-06-27 | 1953-06-26 | Improvements relating to variable phase-shifting networks |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR1066187A (en) |
GB (1) | GB725628A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5125301B1 (en) * | 1970-03-18 | 1976-07-30 | ||
FR2833779A1 (en) * | 2001-12-14 | 2003-06-20 | Thales Sa | High frequency wide band electronically swept antennas having switch switching elementary pass all phase shifter channels with switching producing phase shift |
DE19850446B4 (en) * | 1997-11-03 | 2011-07-21 | BAE SYSTEMS plc, Hampshire | Phased Radio Frequency Pulse Generator Group |
-
1952
- 1952-06-27 FR FR1066187D patent/FR1066187A/en not_active Expired
-
1953
- 1953-06-26 GB GB17826/53A patent/GB725628A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5125301B1 (en) * | 1970-03-18 | 1976-07-30 | ||
DE19850446B4 (en) * | 1997-11-03 | 2011-07-21 | BAE SYSTEMS plc, Hampshire | Phased Radio Frequency Pulse Generator Group |
FR2833779A1 (en) * | 2001-12-14 | 2003-06-20 | Thales Sa | High frequency wide band electronically swept antennas having switch switching elementary pass all phase shifter channels with switching producing phase shift |
EP1322038A1 (en) * | 2001-12-14 | 2003-06-25 | Thales | Broadband phase shifter |
Also Published As
Publication number | Publication date |
---|---|
FR1066187A (en) | 1954-06-02 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2117752A (en) | Harmonic producer | |
US1705993A (en) | Voltage-limiting device | |
US2304135A (en) | Modulating system | |
US2393785A (en) | Carrier modulation | |
GB725628A (en) | Improvements relating to variable phase-shifting networks | |
US1745378A (en) | High-frequency-control system | |
US4194128A (en) | Ripple control systems | |
US2244799A (en) | Electrical frequency translating device | |
GB485959A (en) | System for amplitude modulation employing impedance inversion for high-frequency electric signalling | |
US3348160A (en) | Isolator network for providing a plurality of output signals from a single signal source | |
US1462038A (en) | Modulating system | |
US2935703A (en) | Echo waveform correctors | |
GB470543A (en) | Improvements in phase shifting circuits for radio and like purposes and in systems embodying such circuits | |
US1416077A (en) | System for electrical signaling | |
GB755219A (en) | Improvements in or relating to impedance transformer networks | |
US2506132A (en) | Modulating system | |
US2676308A (en) | Device for deriving phase-shifted voltages from an input voltage of varying frequency | |
US1584327A (en) | Electric-wave transmission system | |
US1714697A (en) | Electric-wave transmission system | |
US1687225A (en) | Frequency-translating circuits | |
GB625197A (en) | Improvements in or relating to networks for the transmission of electrical oscillations | |
US1787950A (en) | System of reaction control | |
US2824955A (en) | Radio transmitting system | |
US1669142A (en) | Static frequency changer | |
GB555402A (en) | Improvements in or relating to control systems for electric discharge devices |