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GB461089A - Improvements in coupling networks for high frequency circuits - Google Patents

Improvements in coupling networks for high frequency circuits

Info

Publication number
GB461089A
GB461089A GB2583435A GB2583435A GB461089A GB 461089 A GB461089 A GB 461089A GB 2583435 A GB2583435 A GB 2583435A GB 2583435 A GB2583435 A GB 2583435A GB 461089 A GB461089 A GB 461089A
Authority
GB
United Kingdom
Prior art keywords
coupling
high frequency
frequency circuits
circuits
coupling networks
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
GB2583435A
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.)
EK Cole Ltd
Original Assignee
EK Cole Ltd
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 EK Cole Ltd filed Critical EK Cole Ltd
Priority to GB2583435A priority Critical patent/GB461089A/en
Publication of GB461089A publication Critical patent/GB461089A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H03H7/01—Frequency selective two-port networks
    • H03H7/0153—Electrical filters; Controlling thereof
    • H03H7/0161—Bandpass filters

Landscapes

  • Amplifiers (AREA)

Abstract

461,089. Impedance networks. COLE, Ltd., E. K., BRADFIELD, G., and INSKIP, F. A. Sept. 18, 1936, No. 25834. [Class 40 (iii)] In a band-pass filter comprising two circuits L1 C1, L2 C2, tuned to the same frequency, the selectivity can be varied by varying a resistance R1 included in one of the circuits. Simultaneously the coupling is varied so as to keep the sensitivity constant ; to this end a condenser Cm is connected in series with the resistance. The network may be used as shown for coupling a frequencychanger valve V1 to an intermediate-frequency amplifier V2, or for coupling an intermediate-frequency amplifier to a diode detector, Fig. 4 (not shown).
GB2583435A 1935-09-18 1935-09-18 Improvements in coupling networks for high frequency circuits Expired GB461089A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2583435A GB461089A (en) 1935-09-18 1935-09-18 Improvements in coupling networks for high frequency circuits

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2583435A GB461089A (en) 1935-09-18 1935-09-18 Improvements in coupling networks for high frequency circuits

Publications (1)

Publication Number Publication Date
GB461089A true GB461089A (en) 1937-02-10

Family

ID=10234100

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2583435A Expired GB461089A (en) 1935-09-18 1935-09-18 Improvements in coupling networks for high frequency circuits

Country Status (1)

Country Link
GB (1) GB461089A (en)

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