An HTS 21-pole microstrip filter for IMT-2000 base stations with steep attenuation
An HTS 21-pole microstrip filter for IMT-2000 base stations with steep attenuation
复制标题
用于具有陡峭衰减的 IMT-2000 基站的 HTS 21 极微带滤波器
DOI：
10.1109/tasc.2001.962260
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发表时间：
2001
影响因子：
1.8
通讯作者：
K. Takahashi
中科院分区：
文献类型：
--
作者：
W. Hattori;T. Yoshitake;K. Takahashi
研制了一种21极高温超导薄膜微带滤波器。该滤波器适用于国际移动的电信-2000（IMT-2000）基站接收机系统，其中需要高选择性以避免来自刚好低于IMT-2000频带的个人手持电话系统（PHS）频带中的信号的干扰。该滤波器在通带边缘以下1 MHz的带外抑制大于40 dB。由于设计和制造工艺的改进，我们还消除了制造过程中对调谐过程的需要，以降低生产成本和周转时间。
We developed a 21-pole high-temperature superconductor thin-film microstrip filter with steep attenuation. This filter is applicable in the International Mobile Telecommunications-2000 (IMT-2000) base station receiver system, where high selectivity is needed to avoid interference from signals in the personal handyphone system (PHS) band just below the IMT-2000 band. The out-of-band rejection of this filter 1 MHz below the passband edge is more than 40 dB. Owing to the improvements of the design and the fabrication processes, we also eliminated the need for a tuning process in the fabrication processes in order to reduce the production costs and the turnaround time.