K-band MMIC active band-pass filters |
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| Authors: | Kang-Wei Fan Ching-Chih Weng Zou-Min Tsai Huei Wang Shyh-Kang Jeng |
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| Affiliation: | Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan; |
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| Abstract: | Two K-band active band-pass filters using 0.15-/spl mu/m GaAs pHEMT technology, with one fixed-frequency and the other tunable, are designed, fabricated, and tested. The fixed-frequency filter has its central frequency at 22.6 GHz, with 900-MHz bandwidth (4%). The tunable filter can be tuned from 19.5 to 21.5 GHz with the same bandwidth. Both circuits have a common size of 1 mm /spl times/ 1 mm. To our knowledge, the tunable filter is the highest frequency tunable active filter ever reported. |
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