| 发明名称 |
TRANSFORMER-TYPE PHASE SHIFTER, PHASE-SHIFT CIRCUIT, AND COMMUNICATION TERMINAL APPARATUS |
| 摘要 |
A transformer-type phase shifter or a phase-shift circuit includes a first coil and a second coil that is magnetically coupled to the first coil with a coupling coefficient of less than 1, a transformer including a parallel inductance component and a series inductance component, and an impedance adjustment circuit including a reactance element that performs impedance adjustment for the transformer, thus being advantageous in reducing the size, loss, and frequency dependency of the phase-shift amount. |
| 申请公布号 |
US2017117868(A1) |
申请公布日期 |
2017.04.27 |
| 申请号 |
US201715397763 |
申请日期 |
2017.01.04 |
| 申请人 |
Murata Manufacturing Co., Ltd. |
发明人 |
ISHIZUKA Kenichi;NISHIDA Hiroshi |
| 分类号 |
H03H7/18;H04B1/40;H01F27/28;H01F27/42;H03H7/38 |
主分类号 |
H03H7/18 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A transformer-type phase shifter comprising:
a transformer including a first coil and a second coil that is magnetically coupled to the first coil with a coupling coefficient of less than 1, the transformer including a parallel inductance component and a series inductance component; and an impedance adjustment circuit including a reactance element that provides impedance matching for the transformer. |
| 地址 |
Nagaokakyo-shi JP |
