| 发明名称 | Power amplifier | ||
| 摘要 | A power amplifier includes: an amplifier; an input matching circuit connected to an input of the amplifier; an output matching circuit connected to an output of the amplifier; and a low-frequency processing circuit connected to the input matching circuit or the output matching circuit, wherein the low-frequency processing circuit includes a first line having a first end connected to the input matching circuit or the output matching circuit, a first shot stub connected to a second end of the first line and including a second line and a first capacitor connected in series each other, and a second short stub connected to the second end of the first line in parallel with the first short stub and including a third line and a second capacitor which are connected in series each other, the first line has a length of λ/8, the second line has a length of λ/4, and the third line has a length of λ/8 with respect to a wavelength λ of a fundamental frequency. | ||
| 申请公布号 | US9543902(B2) | 申请公布日期 | 2017.01.10 |
| 申请号 | US201514926913 | 申请日期 | 2015.10.29 |
| 申请人 | Mitsubishi Electric Corporation | 发明人 | Matsuzuka Takayuki;Udomoto Junichi;Kunii Tetsuo;Utsumi Hiromitsu |
| 分类号 | H03F3/04;H03F1/02;H03F1/56;H03F3/193;H03F3/21 | 主分类号 | H03F3/04 |
| 代理机构 | Studebaker & Brackett PC | 代理人 | Studebaker & Brackett PC |
| 主权项 | 1. A power amplifier comprising: an amplifier; an input matching circuit connected to an input of the amplifier; an output matching circuit connected to an output of the amplifier; and a low-frequency processing circuit connected to the input matching circuit or the output matching circuit, wherein the low-frequency processing circuit includes a first line having a first end connected to the input matching circuit or the output matching circuit, a first shot stub connected to a second end of the first line and including a second line and a first capacitor connected in series each other, and a second short stub connected to the second end of the first line in parallel with the first short stub and including a third line and a second capacitor which are connected in series each other, the first line has a length of λ/8, the second line has a length of λ/4, and the third line has a length of λ/8 with respect to a wavelength λ of a fundamental frequency. | ||
| 地址 | Tokyo JP | ||