发明名称 |
R.F. antenna switch for use with internal and external antennas |
摘要 |
An R.F. antenna switch (102) for coupling either a high-loss port (112) or a low-loss port (114) to a common port (110) includes an unequal power splitter (104) with the high-loss port (112), the low-loss port (114), and the common port (110). The unequal power splitter (104) further has at least one high-loss path (120) coupled between the common port (110) and the high-loss port (112) and a low-loss path (122) coupled between the common port (110) and the low-loss port (114). The R.F. antenna switch (102) further comprises a switching element (106) having an input (106A) coupled to the low-loss port (114) and an output (10B) coupled to a terminating element (108). The low-loss port (114) is terminated with the characteristic impedance of the unequal power splitter (104) when the switching element (106) is switched on.
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申请公布号 |
US6756859(B2) |
申请公布日期 |
2004.06.29 |
申请号 |
US20010989528 |
申请日期 |
2001.11.21 |
申请人 |
TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) |
发明人 |
KODIM WALTER |
分类号 |
H01P1/15;(IPC1-7):H01P1/10;H01P5/18 |
主分类号 |
H01P1/15 |
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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