GB1023106A - Antenna tuning system - Google Patents

Antenna tuning system

Info

Publication number
GB1023106A
GB1023106A GB22992/64A GB2299264A GB1023106A GB 1023106 A GB1023106 A GB 1023106A GB 22992/64 A GB22992/64 A GB 22992/64A GB 2299264 A GB2299264 A GB 2299264A GB 1023106 A GB1023106 A GB 1023106A
Authority
GB
United Kingdom
Prior art keywords
rectifiers
current
june
loading coil
transmitter
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
GB22992/64A
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.)
CBS Corp
Original Assignee
Westinghouse Electric Corp
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 Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Publication of GB1023106A publication Critical patent/GB1023106A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H2/00—Networks using elements or techniques not provided for in groups H03H3/00 - H03H21/00
    • H03H2/005—Coupling circuits between transmission lines or antennas and transmitters, receivers or amplifiers
    • H03H2/006—Transmitter or amplifier output circuits
    • 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
    • H03H7/38—Impedance-matching networks
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/02—Automatic frequency control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/18—Input circuits, e.g. for coupling to an antenna or a transmission line

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transmitters (AREA)
  • Amplifiers (AREA)

Abstract

1,023,106. Radio transmitters; tuning amplifiers. WESTINGHOUSE ELECTRIC CORPORATION. June 3, 1964 [June 28, 1963], No. 22992/64. Headings H3T and H4L. In order to tune aerial 22 to transmitter 20 by shunting portion 15 of loading coil 10 silicon controlled rectifiers 24, 30 are provided as shown, trigger pulses, Fig. 2b, 2d, being applied alternately via transformers 36, 40 at respective times when the current through loading coil portion 14, Fig. 2a, is a minimum. Curves, Fig. 2c, 2e represent the current flow through respective rectifiers 24, 30 and Fig. 2f represents the current through portion 15. If the losses associated with the rectifiers, albeit low, are to be reduced further, D.C. voltage sources are placed in series with them, Fig. 3 (not shown). Various transmitter frequencies may be catered for by utilizing sets of such circuits associated with a multi-tapped portion 15, Figs. 4, 5 (neither shown).
GB22992/64A 1963-06-28 1964-06-03 Antenna tuning system Expired GB1023106A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US291561A US3319168A (en) 1963-06-28 1963-06-28 Antenna tuning apparatus which shorts selected portions of loading coil over complete output cycle

Publications (1)

Publication Number Publication Date
GB1023106A true GB1023106A (en) 1966-03-16

Family

ID=23120807

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22992/64A Expired GB1023106A (en) 1963-06-28 1964-06-03 Antenna tuning system

Country Status (4)

Country Link
US (1) US3319168A (en)
DE (1) DE1279123B (en)
FR (1) FR1401683A (en)
GB (1) GB1023106A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3414833A (en) * 1965-04-30 1968-12-03 Gen Dynamics Corp Electronically tunable high frequency network using pin diodes
US3395351A (en) * 1967-11-09 1968-07-30 Westinghouse Electric Corp System for shifting resonant frequency of an antenna
US3939422A (en) * 1974-02-12 1976-02-17 Westinghouse Electric Corporation Dynamic antenna tuner
DE4012265A1 (en) * 1990-04-17 1991-10-24 Toepholm & Westermann CIRCUIT ARRANGEMENT FOR AN OUTPUT TANK CIRCUIT OF A TRANSMITTER END STAGE OPERATED WITH FREQUENCY REVERSING
US5367537A (en) * 1993-05-24 1994-11-22 Delco Electronics Corp. Saw-based FSK modulating circuit

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE737560C (en) * 1936-01-21 1943-07-16 Siemens Ag Electrical wound capacitor with several assignments
US2712061A (en) * 1948-11-03 1955-06-28 Westinghouse Electric Corp Means for high speed keying at low radio frequency
US2825030A (en) * 1949-01-19 1958-02-25 Westinghouse Electric Corp Frequency modulated v.l.f. transmitter
US2989624A (en) * 1949-08-06 1961-06-20 Westinghouse Electric Corp Radio transmitter with tunable antenna
US2679581A (en) * 1950-05-20 1954-05-25 Westinghouse Electric Corp Antenna tuning system
FR1049912A (en) * 1952-01-28 1954-01-04 Telecommunications Sa Variable frequency oscillator
US3193725A (en) * 1961-03-03 1965-07-06 Ward Leonard Electric Co Control system for solid state controlled rectifiers
US3155922A (en) * 1961-11-21 1964-11-03 Bell Telephone Labor Inc Oscillator frequency control with switching
US3188568A (en) * 1961-12-05 1965-06-08 Marelli Lenkurt S P A Arrangement for tuning of the transmitting antenna of a data transmission system
US3117279A (en) * 1962-06-04 1964-01-07 Collins Radio Co Automatically controlled antenna tuning and loading system

Also Published As

Publication number Publication date
US3319168A (en) 1967-05-09
DE1279123B (en) 1968-10-03
FR1401683A (en) 1965-06-04

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