CA921562A - Overload compensation circuit for antenna tuning system - Google Patents

Overload compensation circuit for antenna tuning system

Info

Publication number
CA921562A
CA921562A CA081290A CA81290A CA921562A CA 921562 A CA921562 A CA 921562A CA 081290 A CA081290 A CA 081290A CA 81290 A CA81290 A CA 81290A CA 921562 A CA921562 A CA 921562A
Authority
CA
Canada
Prior art keywords
compensation circuit
tuning system
antenna tuning
overload compensation
overload
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
CA081290A
Other languages
English (en)
Inventor
Y. Jabbar Kamil
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.)
Motorola Solutions Inc
Original Assignee
Motorola Inc
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 Motorola Inc filed Critical Motorola Inc
Application granted granted Critical
Publication of CA921562A publication Critical patent/CA921562A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/3052—Automatic control in amplifiers having semiconductor devices in bandpass amplifiers (H.F. or I.F.) or in frequency-changers used in a (super)heterodyne receiver
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J3/00—Continuous tuning
    • H03J3/02—Details
    • H03J3/16—Tuning without displacement of reactive element, e.g. by varying permeability
    • H03J3/18—Tuning without displacement of reactive element, e.g. by varying permeability by discharge tube or semiconductor device simulating variable reactance
    • H03J3/185—Tuning without displacement of reactive element, e.g. by varying permeability by discharge tube or semiconductor device simulating variable reactance with varactors, i.e. voltage variable reactive diodes
CA081290A 1969-05-15 1970-04-28 Overload compensation circuit for antenna tuning system Expired CA921562A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US82486469A 1969-05-15 1969-05-15

Publications (1)

Publication Number Publication Date
CA921562A true CA921562A (en) 1973-02-20

Family

ID=25242510

Family Applications (1)

Application Number Title Priority Date Filing Date
CA081290A Expired CA921562A (en) 1969-05-15 1970-04-28 Overload compensation circuit for antenna tuning system

Country Status (5)

Country Link
US (1) US3613008A (de)
JP (1) JPS4930567B1 (de)
CA (1) CA921562A (de)
FR (1) FR2047732A5 (de)
GB (1) GB1273315A (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL156008B (nl) * 1970-06-06 1978-02-15 Philips Nv Ingangsschakeling van een televisie-afstemeenheid.
US3706846A (en) * 1970-12-07 1972-12-19 Gte Sylvania Inc Television receiver intermediate frequency amplifier circuitry
US3792359A (en) * 1971-04-14 1974-02-12 Rca Corp High frequency automatic gain control circuits
US3983490A (en) * 1975-08-05 1976-09-28 Zenith Radio Corporation Signal overload protection circuit for varactor tuner
JPS6043696B2 (ja) * 1978-03-15 1985-09-30 三洋電機株式会社 Ｖｈｆチユ−ナの段間同調結合回路
US4339827A (en) * 1980-11-25 1982-07-13 Rca Corporation Automatic tuning circuit arrangement with switched impedances
IT1150715B (it) * 1982-03-19 1986-12-17 Marco Clementi Autoradio con dispositivi che ne permettono la manovra a distanza
US6055420A (en) * 1990-06-19 2000-04-25 Bose Corproation Antenna system having a high Q circuit
US8228194B2 (en) * 2004-10-28 2012-07-24 University Of Pittsburgh - Of The Commonwealth System Of Higher Education Recharging apparatus
JP2008529392A (ja) * 2005-01-31 2008-07-31 エヌエックスピー ビー ヴィ 利得制御可能な入力段を有する受信装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3165700A (en) * 1962-10-19 1965-01-12 Motorola Inc Mixer circuit for autodyne receiver in which untuned coil couples signal to intermediate frequency transformer
US3192491A (en) * 1962-12-06 1965-06-29 Gen Dynamics Corp Tuneable double-tuned circuits with variable coupling
US3341780A (en) * 1964-02-03 1967-09-12 Motorola Inc Delayed automatic gain control system utilizing the plateau region of an amplifier transistor
US3348154A (en) * 1965-12-14 1967-10-17 Scott Inc H H Signal mixing and conversion apparatus employing field effect transistor with squarelaw operation

Also Published As

Publication number Publication date
FR2047732A5 (de) 1971-03-12
DE2023894A1 (de) 1971-03-04
US3613008A (en) 1971-10-12
GB1273315A (en) 1972-05-10
JPS4930567B1 (de) 1974-08-14
DE2023894B2 (de) 1972-07-27

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