GB768423A - Improvements in or relating to receiving apparatus comprising rod aerials - Google Patents

Improvements in or relating to receiving apparatus comprising rod aerials

Info

Publication number
GB768423A
GB768423A GB11103/55A GB1110355A GB768423A GB 768423 A GB768423 A GB 768423A GB 11103/55 A GB11103/55 A GB 11103/55A GB 1110355 A GB1110355 A GB 1110355A GB 768423 A GB768423 A GB 768423A
Authority
GB
United Kingdom
Prior art keywords
winding
aerial
circuit
tuned
april
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
GB11103/55A
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.)
Philips Electrical Industries Ltd
Original Assignee
Philips Electrical 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 Philips Electrical Industries Ltd filed Critical Philips Electrical Industries Ltd
Publication of GB768423A publication Critical patent/GB768423A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J3/00—Continuous tuning
    • H03J3/02—Details
    • H03J3/06—Arrangements for obtaining constant bandwidth or gain throughout tuning range or ranges

Landscapes

  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Circuits Of Receivers In General (AREA)

Abstract

768,423. Radio receiving circuits, aerial coupling arrangements. PHILIPS ELEC- - TRICAL INDUSTRIES, Ltd. April 18, 1955 [April 21, 1954], No. 11103/55. Classes 40(5) and 40(7) In a receiver comprising a ferro-mag- 'netic rod aerial 1, the winding 2 being'included in the input circuit of a high-frequency amplifier 3 negative feed-back is provided which decreases with increase in signal frequency. With this arrangement the cutting of sidebands on the longer wavelengths is reduced. The winding 2 is tuned by the variable capacitor 12. The cathode lead includes a circuit 8, 9 tuned to a frequency lower than the lowest at which the receiver is designed to operate. Negative feed-back is provided by a coupling coil 7 which is connected in the earth lead of winding 2 together with capacitor 10 shunted by resistor 11. An external aerial 13 may be switched into circuit.
GB11103/55A 1954-04-21 1955-04-18 Improvements in or relating to receiving apparatus comprising rod aerials Expired GB768423A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL768423X 1954-04-21

Publications (1)

Publication Number Publication Date
GB768423A true GB768423A (en) 1957-02-13

Family

ID=19827682

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11103/55A Expired GB768423A (en) 1954-04-21 1955-04-18 Improvements in or relating to receiving apparatus comprising rod aerials

Country Status (4)

Country Link
US (1) US2787704A (en)
BE (1) BE537486A (en)
FR (1) FR1133386A (en)
GB (1) GB768423A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1282744B (en) * 1965-07-02 1968-11-14 Csf Receiving loop antenna
US4103241A (en) * 1975-08-11 1978-07-25 Reach Electronics, Inc. Rf amplifier and antenna
US4314378A (en) * 1979-05-25 1982-02-02 Tractor, Inc. Antenna low-noise Q spoiling circuit
GB201111120D0 (en) 2011-06-29 2011-08-10 Roke Manor Research Reduced Q low frequency antenna

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2351934A (en) * 1944-06-20 Selectivity apparatus
BE441205A (en) * 1940-01-31
US2603723A (en) * 1947-06-03 1952-07-15 Philco Corp High-frequency amplifier circuit
BE504945A (en) * 1950-08-03

Also Published As

Publication number Publication date
US2787704A (en) 1957-04-02
FR1133386A (en) 1957-03-26
BE537486A (en)

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