发明名称 |
RESONATOR, DUPLEXER, AND COMMUNICATION DEVICE |
摘要 |
PROBLEM TO BE SOLVED: To provide a resonator corresponding to a plurality of frequency bands by expanding the frequency variable range when compared with general variable frequency duplexers, and to provide a duplexer and a communication device.SOLUTION: Frequency characteristics are changed continuously by using a resonator of a hollow conductor. A duplexer having a transmission side resonator for passing a transmission signal with low loss at the transmission frequency and attenuating a reception signal at the reception frequency, and a reception side resonator for attenuating a transmission signal at the transmission frequency and passing a reception signal with low loss at the reception frequency, and separating the transmission signal and reception signal is constituted of a resonator of a hollow conductor. Consequently, the frequency variable range of the duplexer can be expanded, and the number of components can be reduced. |
申请公布号 |
JP2014112769(A) |
申请公布日期 |
2014.06.19 |
申请号 |
JP20120266150 |
申请日期 |
2012.12.05 |
申请人 |
HITACHI MEDIA ELECTORONICS CO LTD |
发明人 |
IKEDA KAZUKI;YAMAMOTO AKIO;TONE MASAZUMI;SHIBA TAKASHI;HIKINO OSAMU |
分类号 |
H04B1/40;H01P1/213;H01P3/08;H01P7/04 |
主分类号 |
H04B1/40 |
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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