JPS6447107A - High efficiency semiconductor amplifier - Google Patents
High efficiency semiconductor amplifierInfo
- Publication number
- JPS6447107A JPS6447107A JP20380387A JP20380387A JPS6447107A JP S6447107 A JPS6447107 A JP S6447107A JP 20380387 A JP20380387 A JP 20380387A JP 20380387 A JP20380387 A JP 20380387A JP S6447107 A JPS6447107 A JP S6447107A
- Authority
- JP
- Japan
- Prior art keywords
- line
- capacitor
- fets
- short
- impedance
- 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
Abstract
PURPOSE:To improve the output level and the efficiency by splitting a line for output side impedance matching and providing a high frequency processing circuit to each path so as to approach the impedance of plural unit FETs with respect to a 2nd harmonic wave into the short-circuit state. CONSTITUTION:An impedance matching line 26 and a capacitor 30 are used for the impedance matching between the unit FETs 20, 21 and an output side radio frequency terminal 12. Similarly, the line 27 and the capacitor 31 are used for the matching between the FETs 22, 23 and the terminal 12. Then a capacitor 28 whose one terminal is connected to ground and a strip line 24 having a 1/4 wavelength at the fundamental wave are connected to the line 26 and similarly, a capacitor 29 and a line 25 are connected to the line 27. Thus, the drains of the FETs 20, 21 are short-circuited with respect to the 2nd harmonic waves. Thus, the impedance with respect to the 2nd harmonic wave of the unit FETs is approached to the short-circuit state in this way, then the output level and the efficiency are improved.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20380387A JPS6447107A (en) | 1987-08-17 | 1987-08-17 | High efficiency semiconductor amplifier |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20380387A JPS6447107A (en) | 1987-08-17 | 1987-08-17 | High efficiency semiconductor amplifier |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6447107A true JPS6447107A (en) | 1989-02-21 |
Family
ID=16479990
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP20380387A Pending JPS6447107A (en) | 1987-08-17 | 1987-08-17 | High efficiency semiconductor amplifier |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6447107A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011176752A (en) * | 2010-02-25 | 2011-09-08 | Mitsubishi Electric Corp | Amplifier |
-
1987
- 1987-08-17 JP JP20380387A patent/JPS6447107A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011176752A (en) * | 2010-02-25 | 2011-09-08 | Mitsubishi Electric Corp | Amplifier |
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