JPS6361811B2 - - Google Patents
Info
- Publication number
- JPS6361811B2 JPS6361811B2 JP55013719A JP1371980A JPS6361811B2 JP S6361811 B2 JPS6361811 B2 JP S6361811B2 JP 55013719 A JP55013719 A JP 55013719A JP 1371980 A JP1371980 A JP 1371980A JP S6361811 B2 JPS6361811 B2 JP S6361811B2
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- field effect
- effect transistor
- antenna
- transistor
- 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
Links
- 230000005669 field effect Effects 0.000 claims description 12
- 239000003990 capacitor Substances 0.000 claims description 8
- 229910000859 α-Fe Inorganic materials 0.000 claims description 5
- 239000000284 extract Substances 0.000 claims 1
- 230000035945 sensitivity Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 6
- 230000006866 deterioration Effects 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/189—High-frequency amplifiers, e.g. radio frequency amplifiers
- H03F3/19—High-frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only
- H03F3/193—High-frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only with field-effect devices
- H03F3/1935—High-frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only with field-effect devices with junction-FET devices
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J3/00—Continuous tuning
- H03J3/20—Continuous tuning of single resonant circuit by varying inductance only or capacitance only
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/16—Circuits
- H04B1/18—Input circuits, e.g. for coupling to an antenna or a transmission line
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
- Control Of Amplification And Gain Control (AREA)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1371980A JPS56111326A (en) | 1980-02-08 | 1980-02-08 | Antenna circuit of am radio receiver |
DE19813104242 DE3104242A1 (de) | 1980-02-08 | 1981-02-06 | Antennen-abstimmschaltung fuer am-rundfunkempfaenger |
US06/232,005 US4403347A (en) | 1980-02-08 | 1981-02-06 | Antenna tuning circuit for AM radio receiver |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1371980A JPS56111326A (en) | 1980-02-08 | 1980-02-08 | Antenna circuit of am radio receiver |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56111326A JPS56111326A (en) | 1981-09-03 |
JPS6361811B2 true JPS6361811B2 (US06330241-20011211-M00004.png) | 1988-11-30 |
Family
ID=11841045
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1371980A Granted JPS56111326A (en) | 1980-02-08 | 1980-02-08 | Antenna circuit of am radio receiver |
Country Status (3)
Country | Link |
---|---|
US (1) | US4403347A (US06330241-20011211-M00004.png) |
JP (1) | JPS56111326A (US06330241-20011211-M00004.png) |
DE (1) | DE3104242A1 (US06330241-20011211-M00004.png) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0549160B2 (US06330241-20011211-M00004.png) * | 1988-08-24 | 1993-07-23 | Rion Co |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4510500A (en) * | 1983-01-28 | 1985-04-09 | The United States Of America As Represented By The Secretary Of The Army | Aircraft shorted loop antenna with impedance matching and amplification at feed point |
DE3741324A1 (de) * | 1987-12-05 | 1989-06-15 | Alltronik Gmbh | Handsender zur aussendung codierter elektromagnetischer impulse und darauf abgestimmter empfaenger |
US5198825A (en) * | 1988-06-10 | 1993-03-30 | Nippon Sheet Glass Co., Ltd. | Reception system for a motor vehicle |
JPH0263313A (ja) * | 1988-08-30 | 1990-03-02 | Toko Inc | 電流制御型可変インダクタを用いた同調回路及び受信機 |
DE59010488D1 (de) * | 1989-06-03 | 1996-10-17 | Gimbel Karl Heinz Dipl Ing | Empfänger für codierte elektromagnetische Impulse |
DK164610C (da) * | 1990-08-06 | 1992-12-14 | Hugo Rasmussen | Fremgangsmaade til sporing af en underjordisk, metallisk leder og koblingskreds til anvendelse ved udoevelse af fremgangsmaaden |
GB9114720D0 (en) * | 1991-07-08 | 1991-08-28 | Electronic Advanced Research L | Radio receiving circuits |
SG55257A1 (en) * | 1996-12-30 | 1998-12-21 | Koninkl Philips Electronics Nv | Receiver with a turnable parallel resontant circuit |
JP2000174651A (ja) * | 1998-12-09 | 2000-06-23 | Sony Corp | 短波受信機およびそのアンテナアダプタ |
US6577229B1 (en) * | 1999-06-10 | 2003-06-10 | Cubic Corporation | Multiple protocol smart card communication device |
GB2351193A (en) * | 1999-06-17 | 2000-12-20 | Marconi Electronic Syst Ltd | AM receiver |
GB0200867D0 (en) * | 2002-01-15 | 2002-03-06 | Univ Glasgow | Electric motor monitoring system |
DE10222798A1 (de) * | 2002-05-23 | 2004-02-12 | Visteon Global Technologies, Inc., Dearborn | System für ein Kraftfahrzeug |
KR20040072581A (ko) * | 2004-07-29 | 2004-08-18 | (주)제이씨 프로텍 | 전자기파 증폭중계기 및 이를 이용한 무선전력변환장치 |
US8054235B2 (en) * | 2008-05-21 | 2011-11-08 | Samsung Electronics Co., Ltd | Active magnetic antenna with ferrite core |
US8185077B2 (en) * | 2009-01-20 | 2012-05-22 | Raytheon Company | Method and system for noise suppression in antenna |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3078348A (en) * | 1959-01-27 | 1963-02-19 | Frank H Mcintosh | Lecture broadcasting system |
DE1274204B (de) * | 1967-04-14 | 1968-08-01 | Blaupunkt Werke Gmbh | Eingangsschaltung fuer Empfaenger fuer hochfrequente elektrische Schwingungen |
US3827053A (en) * | 1970-07-23 | 1974-07-30 | E Willie | Antenna with large capacitive termination and low noise input circuit |
US4052674A (en) * | 1972-07-11 | 1977-10-04 | Matsushita Electric Industrial Co., Ltd. | Vhf tuner device |
US4263676A (en) * | 1979-07-23 | 1981-04-21 | Motorola, Inc. | RF amplifying system having image rejection |
-
1980
- 1980-02-08 JP JP1371980A patent/JPS56111326A/ja active Granted
-
1981
- 1981-02-06 US US06/232,005 patent/US4403347A/en not_active Expired - Fee Related
- 1981-02-06 DE DE19813104242 patent/DE3104242A1/de not_active Ceased
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0549160B2 (US06330241-20011211-M00004.png) * | 1988-08-24 | 1993-07-23 | Rion Co |
Also Published As
Publication number | Publication date |
---|---|
DE3104242A1 (de) | 1982-01-07 |
US4403347A (en) | 1983-09-06 |
JPS56111326A (en) | 1981-09-03 |
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