GB900199A - Improvements in or relating to electrical high frequency crystal mixer arrangements - Google Patents

Improvements in or relating to electrical high frequency crystal mixer arrangements

Info

Publication number
GB900199A
GB900199A GB759161A GB759161A GB900199A GB 900199 A GB900199 A GB 900199A GB 759161 A GB759161 A GB 759161A GB 759161 A GB759161 A GB 759161A GB 900199 A GB900199 A GB 900199A
Authority
GB
United Kingdom
Prior art keywords
slider
pin
crystal
variable
relating
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
GB759161A
Inventor
George Frederick Craven
Minoo Rustom Iranl
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 GB759161A priority Critical patent/GB900199A/en
Publication of GB900199A publication Critical patent/GB900199A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D9/00—Demodulation or transference of modulation of modulated electromagnetic waves
    • H03D9/06—Transference of modulation using distributed inductance and capacitance
    • H03D9/0608—Transference of modulation using distributed inductance and capacitance by means of diodes
    • H03D9/0633—Transference of modulation using distributed inductance and capacitance by means of diodes mounted on a stripline circuit

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Waveguide Aerials (AREA)

Abstract

900,199. Frequency changing. STANDARD TELEPHONES & CABLES Ltd. March 2, 1961, No. 7591/61. Class 40 (6). A crystal mixer 12 is held in a coaxial mount comprising an outer cylinder 10 attached by means of a flange 14 to mounting-block 15 which is soldered to one element 16 of a strip line. The central conductor of the crystal engages a pin 11 passing through insulators 20, 25 and an aperture in the line element 16, and which is coupled to the other line element 18 by means of a fixed condenser comprising plates 21, 22 and dielectric 23. The shunt capacity between the pin 11 and line element 16 is made variable by means of a variable condenser comprising conductive disc 24 attached to the pin, dielectric washer 25 and a movable element comprising slider 26. Slot 27 in slider 26 prevents contact with the pins 10, and the slider may be held by means of a clamp 28. The arrangement is such that the crystal mount is inductive and resonates at the working frequency with the fixed and variable condensers which form an adjustable impedance-matching network.
GB759161A 1961-03-02 1961-03-02 Improvements in or relating to electrical high frequency crystal mixer arrangements Expired GB900199A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB759161A GB900199A (en) 1961-03-02 1961-03-02 Improvements in or relating to electrical high frequency crystal mixer arrangements

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB759161A GB900199A (en) 1961-03-02 1961-03-02 Improvements in or relating to electrical high frequency crystal mixer arrangements

Publications (1)

Publication Number Publication Date
GB900199A true GB900199A (en) 1962-07-04

Family

ID=9836072

Family Applications (1)

Application Number Title Priority Date Filing Date
GB759161A Expired GB900199A (en) 1961-03-02 1961-03-02 Improvements in or relating to electrical high frequency crystal mixer arrangements

Country Status (1)

Country Link
GB (1) GB900199A (en)

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