1.89 dB insertion-loss UWB BP-filter with three finite transmission zeros using standard 0.18 μm CMOS technology
1.89 dB insertion-loss UWB BP-filter with three finite transmission zeros using standard 0.18 μm CMOS technology
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DOI：
10.1049/el:20093203
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发表时间：
2009
影响因子：
1.1
通讯作者：
Mei-Ching Lu;Jin-Fa Chang;Y. Lin;Li-Chun Lu
中科院分区：
文献类型：
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作者：
Mei-Ching Lu;Jin-Fa Chang;Y. Lin;Li-Chun Lu
介绍了一种采用0.18µm CMOS技术的低插入损耗超宽带（UWB）带通滤波器（BP-filter）。低插入损耗是通过采用2.34微米厚的微带线和优化的地平面模式作为所需的电感来实现的，以最大限度地减少金属和衬底损耗。该滤波器在3.9-9.4 GHz频率范围内的插入损耗（1/S21）低于3 dB，在0-2.1和13.5-42.2 GHz频率范围内的阻带抑制优于20 dB，在3.1-12.8 GHz频率范围内的输入回波损耗（S11）优于−10 dB。在6.8 GHz时，最小插入损耗为1.89 dB。这被认为是有史以来报道的工作频率高于3ghz的CMOS bp滤波器的最佳结果。
A low insertion-loss ultra-wideband (UWB) bandpass filter (BP-filter) with three finite transmission zeros by 0.18 µm CMOS technology is demonstrated. Low insertion loss is achieved by adopting a 2.34 µm-thick microstrip-line with an optimised ground-plane pattern as the needed inductors to minimise the metal and substrate loss. This filter achieved insertion loss (1/S21) lower than 3 dB over the frequency range 3.9–9.4 GHz, stop-band rejection better than 20 dB over the frequency range 0–2.1 and 13.5–42.2 GHz, and input return loss (S11) better than −10 dB over the frequency range 3.1–12.8 GHz. Minimum insertion loss was 1.89 dB at 6.8 GHz. This is believed to be the best result ever reported for a CMOS BP-filter with operation frequencies higher than 3 GHz.