GB707520A - Radio modulators comprising variable reactors in aerial feed circuits - Google Patents

Radio modulators comprising variable reactors in aerial feed circuits

Info

Publication number
GB707520A
GB707520A GB25438/52A GB2543852A GB707520A GB 707520 A GB707520 A GB 707520A GB 25438/52 A GB25438/52 A GB 25438/52A GB 2543852 A GB2543852 A GB 2543852A GB 707520 A GB707520 A GB 707520A
Authority
GB
United Kingdom
Prior art keywords
conductor
reactance
high impedance
outer conductor
variable
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
GB25438/52A
Other languages
English (en)
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
Publication of GB707520A publication Critical patent/GB707520A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C7/00—Modulating electromagnetic waves
    • H03C7/02—Modulating electromagnetic waves in transmission lines, waveguides, cavity resonators or radiation fields of antennas
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
    • G01S1/02—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Electromagnetism (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Transmitters (AREA)
GB25438/52A 1951-11-10 1952-10-10 Radio modulators comprising variable reactors in aerial feed circuits Expired GB707520A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US255766A US2660709A (en) 1951-11-10 1951-11-10 Mechanical modulator

Publications (1)

Publication Number Publication Date
GB707520A true GB707520A (en) 1954-04-21

Family

ID=22969760

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25438/52A Expired GB707520A (en) 1951-11-10 1952-10-10 Radio modulators comprising variable reactors in aerial feed circuits

Country Status (7)

Country Link
US (1) US2660709A (enrdf_load_stackoverflow)
BE (1) BE515436A (enrdf_load_stackoverflow)
CH (1) CH309360A (enrdf_load_stackoverflow)
DE (1) DE939881C (enrdf_load_stackoverflow)
FR (1) FR1066424A (enrdf_load_stackoverflow)
GB (1) GB707520A (enrdf_load_stackoverflow)
IT (1) IT500059A (enrdf_load_stackoverflow)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2840700A (en) * 1954-06-30 1958-06-24 Jewel D Browder Electrode very low frequency radio receiving antenna for submarines
US2857553A (en) * 1956-02-23 1958-10-21 Gordon Van B King Spiral sweep generator
FR1458197A (fr) * 1965-06-02 1966-03-04 Montages Electr Atel Modulateur mécanique et applications
US5839062A (en) * 1994-03-18 1998-11-17 The Regents Of The University Of California Mixing, modulation and demodulation via electromechanical resonators

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2228692A (en) * 1938-10-14 1941-01-14 Washington Inst Of Technology Load stabilizing means for modulation systems
BE456046A (enrdf_load_stackoverflow) * 1939-08-03
US2368693A (en) * 1942-07-04 1945-02-06 Standard Telephones Cables Ltd Modulation system
FR954971A (enrdf_load_stackoverflow) * 1943-11-06 1950-01-06

Also Published As

Publication number Publication date
CH309360A (de) 1955-08-31
FR1066424A (fr) 1954-06-04
IT500059A (enrdf_load_stackoverflow) 1900-01-01
US2660709A (en) 1953-11-24
DE939881C (de) 1956-03-08
BE515436A (enrdf_load_stackoverflow) 1900-01-01

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