JPH02141111U - - Google Patents
Info
- Publication number
- JPH02141111U JPH02141111U JP5034989U JP5034989U JPH02141111U JP H02141111 U JPH02141111 U JP H02141111U JP 5034989 U JP5034989 U JP 5034989U JP 5034989 U JP5034989 U JP 5034989U JP H02141111 U JPH02141111 U JP H02141111U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- mixer
- bandpass filter
- output terminal
- frequency
- 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.)
- Pending
Links
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 230000010355 oscillation Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Superheterodyne Receivers (AREA)
- Transmitters (AREA)
Description
第１図はこの考案の一実施例による周波数変換
回路の構成を示す回路図、第２図は第１図の入力
端子２および出力端子７における減衰特性を示す
図、第３図および第５図はそれぞれ従来の周波数
変換回路の構成例を示す回路図、第４図は第３図
のＨＰＦ３およびＬＰＦ５のそれぞれの減衰特性
を示す図である。
４……混合器、７……出力端子、８……ＢＰＦ
、９，１０……タンク回路。
FIG. 1 is a circuit diagram showing the configuration of a frequency conversion circuit according to an embodiment of this invention, FIG. 2 is a diagram showing attenuation characteristics at the input terminal 2 and output terminal 7 of FIG. 1, and FIGS. 3 and 5. 4 is a circuit diagram showing a configuration example of a conventional frequency conversion circuit, and FIG. 4 is a diagram showing the attenuation characteristics of the HPF 3 and LPF 5 in FIG. 3. 4...Mixer, 7...Output terminal, 8...BPF
, 9, 10...tank circuit.
Claims (1)
パスフイルタと、高周波信号を前記バンドパスフ
イルタの出力信号と混合して中間周波信号に変換
する混合器と、該混合器と出力端子との間に介挿
され、前記局部発振周波数を共振周波数とする第
１のタンク回路と、前記出力端子と基準電位端と
の間に介挿され、前記中間周波数を共振周波数と
する第２のタンク回路とを具備することを特徴と
する周波数変換回路。 A bandpass filter that passes the fundamental wave component of the local oscillation signal, a mixer that mixes the high frequency signal with the output signal of the bandpass filter and converts it into an intermediate frequency signal, and an intervening device between the mixer and the output terminal. A first tank circuit is inserted between the output terminal and the reference potential terminal and has a resonance frequency at the intermediate frequency. A frequency conversion circuit characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5034989U JPH02141111U (en) | 1989-04-28 | 1989-04-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5034989U JPH02141111U (en) | 1989-04-28 | 1989-04-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02141111U true JPH02141111U (en) | 1990-11-27 |
Family
ID=31568817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5034989U Pending JPH02141111U (en) | 1989-04-28 | 1989-04-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02141111U (en) |
-
1989
- 1989-04-28 JP JP5034989U patent/JPH02141111U/ja active Pending
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