GB676306A - Improvements in or relating to signal transmission arrangements - Google Patents

Improvements in or relating to signal transmission arrangements

Info

Publication number
GB676306A
GB676306A GB1819649A GB1819649A GB676306A GB 676306 A GB676306 A GB 676306A GB 1819649 A GB1819649 A GB 1819649A GB 1819649 A GB1819649 A GB 1819649A GB 676306 A GB676306 A GB 676306A
Authority
GB
United Kingdom
Prior art keywords
impedance
source
load
resistive
short
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
GB1819649A
Inventor
Edward Cecil Cork
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.)
EMI Ltd
Electrical and Musical Industries Ltd
Original Assignee
EMI Ltd
Electrical and Musical Industries 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 EMI Ltd, Electrical and Musical Industries Ltd filed Critical EMI Ltd
Priority to GB1819649A priority Critical patent/GB676306A/en
Publication of GB676306A publication Critical patent/GB676306A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P5/00—Coupling devices of the waveguide type
    • H01P5/02—Coupling devices of the waveguide type with invariable factor of coupling

Landscapes

  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

Abstract

676,306. Impedance networks. ELECTRIC & MUSICAL INDUSTRIES, Ltd. July 10, 1950 [July 9, 1949], No. 18196/49. Class 40 (viii). A signal transmission arrangement comprises a resistive load impedance and a source of energy whose resistive impedance is matched to the load at two frequencies by a length of transmission line connecting the load and source, an impedance being connected in shunt with the source to balance out the reactance produced by this arrangement at the two frequencies of operation. The Specification contains a mathematical treatment for obtaining the required values of the parts of this circuit for particular cases. The impedance in shunt with the source may be a short-circuited section of line. In order to avoid too high a ratio of transformation in one step, as shown, a number of short-circuited lines Z20, Z21 and Z22 may be arranged at intervals along the line connecting terminals 2 and 3, to which the source is connected, with the resistive load 1. Each short-circuited line with its accompanying section of the transmission line acts to transform a resistive impedance and balance out reactance as in the simple case first described.
GB1819649A 1949-07-09 1949-07-09 Improvements in or relating to signal transmission arrangements Expired GB676306A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1819649A GB676306A (en) 1949-07-09 1949-07-09 Improvements in or relating to signal transmission arrangements

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1819649A GB676306A (en) 1949-07-09 1949-07-09 Improvements in or relating to signal transmission arrangements

Publications (1)

Publication Number Publication Date
GB676306A true GB676306A (en) 1952-07-23

Family

ID=10108297

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1819649A Expired GB676306A (en) 1949-07-09 1949-07-09 Improvements in or relating to signal transmission arrangements

Country Status (1)

Country Link
GB (1) GB676306A (en)

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