JPH0273819U - - Google Patents
Info
- Publication number
- JPH0273819U JPH0273819U JP15351788U JP15351788U JPH0273819U JP H0273819 U JPH0273819 U JP H0273819U JP 15351788 U JP15351788 U JP 15351788U JP 15351788 U JP15351788 U JP 15351788U JP H0273819 U JPH0273819 U JP H0273819U
- Authority
- JP
- Japan
- Prior art keywords
- frequency power
- amplification section
- preamplifier
- differential amplifier
- resistor
- 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
- 239000003990 capacitor Substances 0.000 claims description 3
- 230000003321 amplification Effects 0.000 claims 5
- 238000003199 nucleic acid amplification method Methods 0.000 claims 5
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Control Of Amplification And Gain Control (AREA)
- Amplifiers (AREA)
Description
第１図は本考案の全体構成を示すブロツク図、
第２図は従来の２段並列形の高周波電力増幅器の
ブロツク図。
１，２：チヨークコイル、３：抵抗値の小さい
抵抗、４：チヨークコイル、５：ピンダイオード
、６：コイル、７：コンデンサ、８：ＰＮＰトラ
ンジスタ、９，１０：差動増幅器を構成するトラ
ンジスタ、１１，１２，１３，１４，１５，１６
，１７：差動増幅器のバイアス抵抗。
Figure 1 is a block diagram showing the overall configuration of the present invention.
FIG. 2 is a block diagram of a conventional two-stage parallel high-frequency power amplifier. 1, 2: Chiyoke coil, 3: Resistor with small resistance value, 4: Chiyoke coil, 5: Pin diode, 6: Coil, 7: Capacitor, 8: PNP transistor, 9, 10: Transistor constituting a differential amplifier, 11, 12, 13, 14, 15, 16
, 17: Bias resistance of differential amplifier.
Claims (1)
幅部を並列に接続し、両者で得られる出力を合成
する方式の高周波電力増幅器において、前置増幅
器と第１の高周波電力増幅部はピンダイオードと
、コンデンサを介し接続され又、前置増幅器と第
２の高周波電力増幅部の間に固定減衰器が入り、
当該高周波電力増幅部と電源との間に抵抗を入れ
、該抵抗の高周波電力増幅部側から、差動増幅器
を構成するトランジスタの片方のベースに別の抵
抗を介し接続し、さらに上記差動増幅器で電流制
御するＰＮＰトランジスタを有し、該ＰＮＰトラ
ンジスタのコレクタと上記差動増幅器を構成する
トランジスタのベースを接続し、又上記ＰＮＰト
ランジスタのコレクタを、上記ピンダイオード及
びコンデンサを介し第１の高周波電力増幅部に接
続することを特徴とする高周波電力増幅部。 In a high-frequency power amplifier that divides the output of a preamplifier into two, connects a high-frequency power amplification section in parallel, and combines the output obtained from both, the preamplifier and the first high-frequency power amplification section are pin diodes. and a fixed attenuator is connected between the preamplifier and the second high frequency power amplification section through a capacitor,
A resistor is inserted between the high frequency power amplifying section and the power supply, and the high frequency power amplifying section side of the resistor is connected to one base of a transistor constituting the differential amplifier via another resistor, and the differential amplifier The collector of the PNP transistor is connected to the base of the transistor constituting the differential amplifier, and the collector of the PNP transistor is connected to the first high-frequency power via the pin diode and capacitor. A high frequency power amplification section, characterized in that it is connected to an amplification section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15351788U JPH0273819U (en) | 1988-11-28 | 1988-11-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15351788U JPH0273819U (en) | 1988-11-28 | 1988-11-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0273819U true JPH0273819U (en) | 1990-06-06 |
Family
ID=31429428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15351788U Pending JPH0273819U (en) | 1988-11-28 | 1988-11-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0273819U (en) |
-
1988
- 1988-11-28 JP JP15351788U patent/JPH0273819U/ja active Pending