GB1155603A - Automatic Phase Control for Radio Transmitters - Google Patents

Automatic Phase Control for Radio Transmitters

Info

Publication number
GB1155603A
GB1155603A GB4766165A GB4766165A GB1155603A GB 1155603 A GB1155603 A GB 1155603A GB 4766165 A GB4766165 A GB 4766165A GB 4766165 A GB4766165 A GB 4766165A GB 1155603 A GB1155603 A GB 1155603A
Authority
GB
United Kingdom
Prior art keywords
phase
channels
circuit
phase shift
combining circuit
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
GB4766165A
Inventor
Kenneth Frederick Treen
Donald Brearley Munday
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB4766165A priority Critical patent/GB1155603A/en
Priority to FR83277A priority patent/FR1510906A/en
Publication of GB1155603A publication Critical patent/GB1155603A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D13/00—Circuits for comparing the phase or frequency of two mutually-independent oscillations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)

Abstract

1,155,603. Automatic phase control systems. STANDARD TELEPHONES & CABLES Ltd. 4 Nov., 1966 [10 Nov., 1965], No. 47661/65. Heading H3A. A radio transmitter wherein signals, e.g. from a master oscillator, are fed via two channels to a combining circuit 8 and a load, e.g. an aerial, is characterized in that one of the channels includes a phase modulator 4, and an output of the combining circuit feeds an amplitude detector 6 the output of which is compared with the phase modulation source 9 to control a phase shift circuit 5 disposed in one of the channels. In the system shown the motor 10 driving the phase shift circuit 5 is of the two phase type which rotates only when its two inputs are out of phase. The channels include amplifiers 2a and 2b the outputs of which are equalized by an amplitude control unit 7. The combining circuit 8 may comprise a hybrid ring circuit, Fig. 2 (not shown), and when the channels each include a travelling wave amplifier, Fig. 4 (not shown), the phase modulation and the phase shift may be applied by supplying appropriate voltages to the helix of the travelling wave tube.
GB4766165A 1965-11-10 1965-11-10 Automatic Phase Control for Radio Transmitters Expired GB1155603A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB4766165A GB1155603A (en) 1965-11-10 1965-11-10 Automatic Phase Control for Radio Transmitters
FR83277A FR1510906A (en) 1965-11-10 1966-11-10 Electrical signal combination device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4766165A GB1155603A (en) 1965-11-10 1965-11-10 Automatic Phase Control for Radio Transmitters

Publications (1)

Publication Number Publication Date
GB1155603A true GB1155603A (en) 1969-06-18

Family

ID=10445815

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4766165A Expired GB1155603A (en) 1965-11-10 1965-11-10 Automatic Phase Control for Radio Transmitters

Country Status (2)

Country Link
FR (1) FR1510906A (en)
GB (1) GB1155603A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2126172A1 (en) * 1971-02-24 1972-10-06 Hughes Aircraft Co
DE3704201A1 (en) * 1987-02-11 1988-09-01 Bbc Brown Boveri & Cie SHORT WAVE DIPOLE GROUPS

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2126172A1 (en) * 1971-02-24 1972-10-06 Hughes Aircraft Co
DE3704201A1 (en) * 1987-02-11 1988-09-01 Bbc Brown Boveri & Cie SHORT WAVE DIPOLE GROUPS

Also Published As

Publication number Publication date
FR1510906A (en) 1968-01-26

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