| 发明名称 |
ANTENNA TUNING CIRCUITRY WITH REDUCED INTERFERENCE |
| 摘要 |
Antenna tuning circuitry includes an antenna tuning node, an antenna tuning switch, and a resonant tuning circuit. The antenna tuning node is coupled to a resonant conduction element of an antenna. The antenna tuning switch and the resonant tuning circuit are coupled in series between the antenna tuning switch and the antenna tuning node, such that the resonant tuning circuit is between the antenna tuning node and the antenna tuning switch. The resonant tuning circuit is configured to resonate at one or more harmonic frequencies generated by the antenna tuning switch such that a high impedance path is formed between the antenna tuning switch and the antenna tuning node at harmonic frequencies generated by the antenna tuning switch. Accordingly, harmonic interference generated by the antenna tuning switch is prevented from reaching the antenna, while simultaneously allowing for tuning of the antenna. |
| 申请公布号 |
US2015054698(A1) |
申请公布日期 |
2015.02.26 |
| 申请号 |
US201414465142 |
申请日期 |
2014.08.21 |
| 申请人 |
RF Micro Devices, Inc. |
发明人 |
Kerr Daniel Charles;Iversen Christian Rye;Bolton Eric K.;Bauder Ruediger;Khlat Nadim |
| 分类号 |
H01Q5/00 |
主分类号 |
H01Q5/00 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. Antenna tuning circuitry comprising:
an antenna tuning node coupled to a resonant conduction element of an antenna; an antenna tuning switch; and a resonant tuning circuit coupled between the antenna tuning switch and the antenna tuning node and configured to resonate at one or more harmonic frequencies generated by the antenna tuning switch such that a high impedance path is formed between the antenna tuning switch and the antenna tuning node at the one or more harmonic frequencies generated by the antenna tuning switch. |
| 地址 |
Greensboro NC US |
