GB533717A - Improvements in or relating to aerial coupling circuits - Google Patents

Improvements in or relating to aerial coupling circuits

Info

Publication number
GB533717A
GB533717A GB23882/39A GB2388239A GB533717A GB 533717 A GB533717 A GB 533717A GB 23882/39 A GB23882/39 A GB 23882/39A GB 2388239 A GB2388239 A GB 2388239A GB 533717 A GB533717 A GB 533717A
Authority
GB
United Kingdom
Prior art keywords
transmission line
dipole
short
waves
transformer
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
GB23882/39A
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
Priority to BE475932D priority Critical patent/BE475932A/xx
Application filed by Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB23882/39A priority patent/GB533717A/en
Priority to FR867362D priority patent/FR867362A/en
Publication of GB533717A publication Critical patent/GB533717A/en
Priority to ES0177216A priority patent/ES177216A1/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H01Q5/50—Feeding or matching arrangements for broad-band or multi-band operation
    • 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
    • H01Q5/30—Arrangements for providing operation on different wavebands
    • H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
    • H01Q5/314—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors
    • H01Q5/321—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors within a radiating element or between connected radiating elements

Landscapes

  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Noise Elimination (AREA)

Abstract

533,717. Wireless receiving systems. STANDARD TELEPHONES & CABLES, Ltd., BEATTY, W. A., and CHATTERJEA, P. K. Aug. 18, 1939, No. 23882. [Class 40 (v)] In an aerial arrangement of the kind described in Specification 523,074, a dipole is located outside the reach of interference due to car ignition, a co-axial down-lead being coupled at an intermediate point, through an impedance-matching network, to a lower line which is screened against local static. The dipole is used alone for short waves, and in combination with the transmission line for long waves. Short-wave signals from the dipole (not shown) pass down the transmission line 11 through by-pass condensers 23, 24 and along the lower transmission line 20 and then via an input transformer 32 to the receiver. Chokes 14, 18, 21 block the short waves from the transformer 15, 17, which feeds the longer waves picked up by the dipole and line 11 to a long-wave receiver through a transformer 27 provided with short-wave chokes 25, 28. The sheath of the lower transmission line is earthed at E. Fig. 3 shows an alternative arrangement in which the lower transmission line consists of twin conductors 19 in an earthed screen 20, the bypassing condensers being paralleled at 24, 29 and at 38, 31.
GB23882/39A 1939-08-18 1939-08-18 Improvements in or relating to aerial coupling circuits Expired GB533717A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
BE475932D BE475932A (en) 1939-08-18
GB23882/39A GB533717A (en) 1939-08-18 1939-08-18 Improvements in or relating to aerial coupling circuits
FR867362D FR867362A (en) 1939-08-18 1940-10-02 Antenna systems
ES0177216A ES177216A1 (en) 1939-08-18 1947-03-13 IMPROVEMENTS IN OR RELATED TO ANTENNAS SYSTEMS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB23882/39A GB533717A (en) 1939-08-18 1939-08-18 Improvements in or relating to aerial coupling circuits

Publications (1)

Publication Number Publication Date
GB533717A true GB533717A (en) 1941-02-19

Family

ID=10202843

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23882/39A Expired GB533717A (en) 1939-08-18 1939-08-18 Improvements in or relating to aerial coupling circuits

Country Status (4)

Country Link
BE (1) BE475932A (en)
ES (1) ES177216A1 (en)
FR (1) FR867362A (en)
GB (1) GB533717A (en)

Also Published As

Publication number Publication date
ES177216A1 (en) 1947-04-16
FR867362A (en) 1941-10-20
BE475932A (en) 1900-01-01

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