Field trial of an HTS filter system on a CDMA base station

• 作 者: H.PIEL B.AMINOV F.AMINOVA M.GETTA S.KOLESOV A.KNACK N.PUPETER D.WEHLER
• 机 构: Cryoelectra GmbH Wettinerstr. 6H,D-42287 Wuppertal,Germany,Cryoelectra GmbH,Wettinerstr. 6H,D-42287
• 出 处: Chinese Science Bulletin
• 发表日期: 2007年02期
• 关键词: installed transmitting superconductor receiver figure fractional bandwidth runni

This paper presents the field trial results of a high temperature superconductor filter system (HTSFS) in a code division multiple access (CDMA) mobile communication base station (BTS) in Tangshan, China. The center frequency of the HTSFS is 830 MHz with 1.4% fractional bandwidth. The noise figure (NF) of the HTSFS, including connectors and cables, is 0.8 dB. The field trial results show that after the HTSFS was installed in the receiver front-end of a CDMA base station, the transmitting power of handset was decreased by 3.1 dB on average. Up to now, the HTSFS has been running steadily in the base station for more than 22 months, demonstrating the reliability and stability of the system.

This paper presents the field trial results of a high temperature superconductor filter system (HTSFS) in a code division multiple access (CDMA) mobile communication base station (BTS) in Tangshan, China. The center frequency of the HTSFS is 830 MHz with 1.4% The noise figure (NF) of the HTSFS, including connectors and cables, is 0.8 dB. The field trial results show that after the HTSFS was installed in the receiver front-end of a CDMA base station, the transmitting power of handset was decreased by 3.1 dB on average. Up to now, the HTSFS has been running steadily in the base station for more than 22 months, demonstrating the reliability and stability of the system.