| 摘要 |
PROBLEM TO BE SOLVED: To provide an inexpensive OFDM signal receiver capable of obtaining high performance without the need for using a plurality of expensive broadband filters which hardly provide high performance characteristics. SOLUTION: The OFDM signal receiver is constituted in such a way that high performance and inexpensive narrow band filters 120, 121 are connected in parallel in a band limit section 111. The band limit section 111 can thereby compensate a cause to deterioration caused in a frequency band where pass bands of the filters 120, 121 are overlapped by utilizing the algorithm of an OFDM demodulation system. Thus, the OFDM receiver which uses the inexpensive high performance narrow band filters without the need for using the plurality of expensive broadband filters which hardly provide high performance characteristics can easily obtain high performance for various characteristics such as a passing loss, an in-band ripple, a noise suppressing amount, a temperature characteristic, and a VSWR. COPYRIGHT: (C)2006,JPO&NCIPI
|
