发明名称 |
High-frequency compound switch module and communication terminal using it |
摘要 |
A high-frequency compound switch module of this invention has a first communication system comprising a switch unit for switching connection of a signal from an antenna to one of a transmission circuit and a reception circuit of the first communication system based on a signal from a control terminal, a filter provided on a first reception circuit side, for filtering out a first reception signal, and a first phase shift line provided between the filter and the switch unit, and a second communication system comprising a second phase shift line provided between the switch unit and the first phase shift line, and a branching filter provided in series to the second phase shift line for branching a signal from the second phase shift line into a second transmission signal and a second reception signal. The switch module is capable of performing at least a receiving process of the first communication system while performing transmission/reception with the second communication system.
|
申请公布号 |
US6995630(B2) |
申请公布日期 |
2006.02.07 |
申请号 |
US20030471230 |
申请日期 |
2003.09.09 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
SATOH YUKI;ISHIZAKI TOSHIO;YASUHO TAKEO |
分类号 |
H03H9/70;H03H9/72;H04B1/48;H04B1/52 |
主分类号 |
H03H9/70 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|