发明名称 |
Multimode frontend circuit |
摘要 |
A multimode frontend circuit of the present invention comprises two transmission paths. Each of the transmission paths comprises two input/output lines, a first transmission line having one end connected to one of the input/output lines and the other end connected to the other input/output line, a second transmission line connected to the one of the input/output lines and the other end connected to the other input/output line, and one or more termination switch circuits. The termination switch circuit or circuits comprise a switch having one end connected to one of the first and second transmission lines and a termination circuit connected to the other end of the switch. Each of the transmission lines may comprise one or more short-circuiting switches. The short-circuiting switch or switches are capable of short-circuiting between the two transmission lines at positions at the same electrical length from one of the input/output lines. |
申请公布号 |
US8648666(B2) |
申请公布日期 |
2014.02.11 |
申请号 |
US201113216442 |
申请日期 |
2011.08.24 |
申请人 |
KAWAI KUNIHIRO;OKAZAKI HIROSHI;NARAHASHI SHOICHI;NTT DOCOMO, INC. |
发明人 |
KAWAI KUNIHIRO;OKAZAKI HIROSHI;NARAHASHI SHOICHI |
分类号 |
H01P1/24;H03H7/38 |
主分类号 |
H01P1/24 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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