JPS63147018U - - Google Patents
Info
- Publication number
- JPS63147018U JPS63147018U JP3980987U JP3980987U JPS63147018U JP S63147018 U JPS63147018 U JP S63147018U JP 3980987 U JP3980987 U JP 3980987U JP 3980987 U JP3980987 U JP 3980987U JP S63147018 U JPS63147018 U JP S63147018U
- Authority
- JP
- Japan
- Prior art keywords
- transistor
- collector
- mixed
- emitter
- injected
- 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
- 230000010355 oscillation Effects 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 5
- 239000002131 composite material Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
Landscapes
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
- Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
- Superheterodyne Receivers (AREA)
Description
第１図はこの考案の一実施例の構成を示す回路
図、第２図は同実施例における合成トランジスタ
Ｑ２′のエミツタ回路を示す回路図、第３図はサ
テライト信号のスペクトラムを示す図、第４図は
周波数変換を行う受信回路の構成を示すブロツク
図、第５図は従来の周波数変換回路の構成を示す
回路図である。
Ｑ１…発振トランジスタ、Ｑ２′…混合トラン
ジスタ（ベース接地された混合トランジスタ）、
Ｒ１１…コレクタ抵抗、Ｒ１２…結合抵抗。
FIG. 1 is a circuit diagram showing the configuration of an embodiment of this invention, FIG. 2 is a circuit diagram showing the emitter circuit of the composite transistor Q 2 ' in the same embodiment, and FIG. 3 is a diagram showing the spectrum of a satellite signal. FIG. 4 is a block diagram showing the configuration of a receiving circuit that performs frequency conversion, and FIG. 5 is a circuit diagram showing the configuration of a conventional frequency conversion circuit. Q1 ...Oscillation transistor, Q2 ' ...Mixed transistor (base-grounded mixed transistor),
R11 ...Collector resistance, R12 ...Coupling resistance.
Claims (1)
レクタにコレクタ抵抗を設け、前記コレクタ抵抗
に得られる発振出力信号を結合抵抗を介して混合
トランジスタのエミツタに注入するとともに、前
記混合トランジスタのベースを接地し、かつ、周
波数変換されるべき入力信号を前記混合トランジ
スタのエミツタに注入したことを特徴とする周波
数変換回路。 A collector resistor is provided in the collector of an oscillation transistor constituting a local oscillation circuit, an oscillation output signal obtained at the collector resistor is injected into the emitter of the mixed transistor via a coupling resistor, and the base of the mixed transistor is grounded, and . A frequency conversion circuit, characterized in that an input signal to be frequency converted is injected into the emitter of the mixed transistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3980987U JPS63147018U (en) | 1987-03-18 | 1987-03-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3980987U JPS63147018U (en) | 1987-03-18 | 1987-03-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63147018U true JPS63147018U (en) | 1988-09-28 |
Family
ID=30853329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3980987U Pending JPS63147018U (en) | 1987-03-18 | 1987-03-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63147018U (en) |
-
1987
- 1987-03-18 JP JP3980987U patent/JPS63147018U/ja active Pending