GB839219A - Waveguide mixer circuit for microwaves - Google Patents

Waveguide mixer circuit for microwaves

Info

Publication number
GB839219A
GB839219A GB33390/57A GB3339057A GB839219A GB 839219 A GB839219 A GB 839219A GB 33390/57 A GB33390/57 A GB 33390/57A GB 3339057 A GB3339057 A GB 3339057A GB 839219 A GB839219 A GB 839219A
Authority
GB
United Kingdom
Prior art keywords
crystals
guide
wave
waves
waveguide
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
GB33390/57A
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 GB839219A publication Critical patent/GB839219A/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
    • H03D9/0616—Transference of modulation using distributed inductance and capacitance by means of diodes mounted in a hollow waveguide

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Waveguide Switches, Polarizers, And Phase Shifters (AREA)

Abstract

839,219. Impedance matching. STANDARD TELEPHONES & CABLES Ltd. Oct. 25, 1957 [Oct. 30, 1956], No. 33390/57. Class 40 (8). [Also in Group XL (c)] A microwave mixer circuit comprises mixer crystals arranged in a hollow guide which on one side of the crystals includes an axial conductor so that on one side H10 mode waves are supported and on the other TEM waves, the arrangement further being such that the H10 waves will not pass to the TEM wave source and vice versa. In the Figure two mixer crystals 7, 8 are connected to a central conductor 2 in a wave-guide 1. A first signal is applied to the waveguide to produce H10 waves and a second signal is applied to a second waveguide 3 and injected into the waveguide 1 in the form of a TEM wave by means of an adjustable probe 4. This wave cannot pass along guide 1 beyond the end of the conductor 2 and the H10 wave cannot pass through the coupling between the guides to guide 3. The two mixer crystals may be arranged in between laterally extending housings as shown in Fig. 4 between conducting strips 15, 26 extending to the side walls of the guide. The I.F. signal may be extracted from a coil 25, D.C. being applied to the crystal through a potentiometer 23 which may be adjusted so that the crystals are balanced. The circuit may be further balanced by means of a screw 27 which adjusts laterally the position of conductor 26. In alternative arrangements (Figs. 2 and 3, not shown), the two crystals are arranged in push-pull and parallel respectively.
GB33390/57A 1956-10-30 1957-10-25 Waveguide mixer circuit for microwaves Expired GB839219A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE839219X 1956-10-30

Publications (1)

Publication Number Publication Date
GB839219A true GB839219A (en) 1960-06-29

Family

ID=6761878

Family Applications (1)

Application Number Title Priority Date Filing Date
GB33390/57A Expired GB839219A (en) 1956-10-30 1957-10-25 Waveguide mixer circuit for microwaves

Country Status (1)

Country Link
GB (1) GB839219A (en)

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