AFI Suppressing Effect of an HTS RF Receive Filter with High Selectivity for Base Stations of Digital Wireless Communications

Kazunori YAMANAKA  Masafumi SHIGAKI  Kazuaki KURIHARA  Akihiko AKASEGAWA  

IEICE TRANSACTIONS on Electronics   Vol.E91-C   No.3   pp.364-365
Publication Date: 2008/03/01
Online ISSN: 1745-1353
DOI: 10.1093/ietele/e91-c.3.364
Print ISSN: 0916-8516
Type of Manuscript: Special Section LETTER (Special Section on Recent Progress in Superconductive Digital Electronics)
HTS,  RF filter,  bit error rate,  digital wireless communication,  

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We report on suppressing adjacent-frequency interference (AFI) by using a RF receive bandpass-filter (BPF) with high-selectivity. By considering a high temperature superconducting (HTS) multi-pole BPF as a high selective BPF, the effect was estimated by numerical simulations. The simulations of the RF signals with an OFDM modulation transmitted to the demodulator via the BPF were carried out using the HTS BPF for 5 GHz band. The results confirmed the improvement of the bit error rate (BER) characteristic with the assumed HTS BPF with the high multi-poles under a strong AFI.