GB1178488A - Improvements in Solid State Phase Shifter Circuits, utilised in particular in the Field of Ultra High Frequencies and Microwave Frequencies - Google Patents

Improvements in Solid State Phase Shifter Circuits, utilised in particular in the Field of Ultra High Frequencies and Microwave Frequencies

Info

Publication number
GB1178488A
GB1178488A GB1496667A GB1496667A GB1178488A GB 1178488 A GB1178488 A GB 1178488A GB 1496667 A GB1496667 A GB 1496667A GB 1496667 A GB1496667 A GB 1496667A GB 1178488 A GB1178488 A GB 1178488A
Authority
GB
United Kingdom
Prior art keywords
phase
diodes
ports
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
Application number
GB1496667A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Compagnie Francaise Thomson Houston SA
Original Assignee
Compagnie Francaise Thomson Houston SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Publication of GB1178488A publication Critical patent/GB1178488A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/74—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of diodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/10—Auxiliary devices for switching or interrupting
    • H01P1/15—Auxiliary devices for switching or interrupting by semiconductor devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/18—Phase-shifters
    • H01P1/185—Phase-shifters using a diode or a gas filled discharge tube

Landscapes

  • Waveguide Switches, Polarizers, And Phase Shifters (AREA)

Abstract

1,178,488. Phase-shifters. COMPAGNIE FRANCAISE THOMSON HOUSTONHOTCHKISS BRANDT. 31 March, 1967 [31 March, 1966], No. 14966/67. Heading H1W. A phase-shift of 0 or # in a microwave signal is obtained by variation in the impedance of a semi-conductor device (or devices) connected in series with the central conductor of a transmission line in the vicinity of a short-circuit. As shown, two such devices 341, 342, e.g. varactor diodes, are connected as shown in series with the central conductor 31, 312, 311 of a coaxial line which is short-circuited at 33. A bias signal, which alternates between the two extreme bias voltages of the diodes, is applied through leads 361, 362. Where the bias signal has a relatively high frequency, it is applied through appropriate matching quarterwave stubs. The inductance L of the sections 311, 312 is such that L = CZ 0 where C is the capacitance of the diodes in the back-biased condition and Z 0 is the characteristic impedance of the line. If, in addition, 1/#C # Z 0 and #L ½ Z 0 , the microwave signal in line 31, 32 suffers, upon reflection, phase-shifts of 0 and # respectively in the two opposite conductive states of the diode. A tri-plate line may be used. The diode or diodes may be directly connected to the short-circuit without interposition of the stub 311 if C is small enough. The phase-shift device may be connected to one of the ports of a three-port circulator, the other two ports furnishing input and output respectively. Alternatively, a phaseshifter may be connected to each of the conjugate ports of a 3db. directional coupler of which the other two port form the input and output respectively. A ring hybrid coupler -may be substituted for the 3db. coupler but, in this case, the diodes in the two phaseshifters must be controlled in phase opposition. To avoid this condition, the electrical lengths between the phase-shifters and the corresponding ports of the ring hybrid may be arranged to differ by one quarter-wavelength at the microwave frequency.
GB1496667A 1966-03-31 1967-03-31 Improvements in Solid State Phase Shifter Circuits, utilised in particular in the Field of Ultra High Frequencies and Microwave Frequencies Expired GB1178488A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR55837A FR1480369A (en) 1966-03-31 1966-03-31 Improvements to solid phase-shifting circuits, used in particular in the field of ultra-high frequencies and microwaves

Publications (1)

Publication Number Publication Date
GB1178488A true GB1178488A (en) 1970-01-21

Family

ID=8605205

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1496667A Expired GB1178488A (en) 1966-03-31 1967-03-31 Improvements in Solid State Phase Shifter Circuits, utilised in particular in the Field of Ultra High Frequencies and Microwave Frequencies

Country Status (4)

Country Link
DE (1) DE1591030B1 (en)
FR (1) FR1480369A (en)
GB (1) GB1178488A (en)
NL (1) NL6702971A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0335788A1 (en) * 1988-04-01 1989-10-04 Thomson-Csf Microwave phase shifter

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0335788A1 (en) * 1988-04-01 1989-10-04 Thomson-Csf Microwave phase shifter
FR2629641A1 (en) * 1988-04-01 1989-10-06 Thomson Csf HYPERFREQUENCY DEHASE CIRCUIT
US4967172A (en) * 1988-04-01 1990-10-30 Thomson-Csf Microwave phase shifter circuit

Also Published As

Publication number Publication date
NL6702971A (en) 1967-10-02
FR1480369A (en) 1967-05-12
DE1591030B1 (en) 1970-07-23

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