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[摘要]：Results are presented for micromachined plastic waveguide bandpass iris filters for W-band applications using a cost-effective polymer micro hot embossing process in Conjunction with metallic electroplating and sealing techniques. The prototype filter has an 8-mu m thick electroplated gold layer on a polymeric WR-10 waveguide with a 5-cavity Chebyschev-type design. Measurement results show center frequency of 96.77 GHz with a bandwidth of 3.15%, a loaded quality factor 31.73 and an unloaded quality factor for a single cavity resonator is 1210.6, respectively. A minimum insertion loss of -1.22 dB and return loss of better than -9.3 dB have been measured over the entire passband. (C) 2008 Elsevier B.V. All rights reserved. |
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