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60 GHz dual-band bandpass filter using LTCC

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3 Author(s)
Xin Xu ; Ministerial Key Lab. of JGMT, Nanjing Univ. of Sci. & Technol., Nanjing, China ; Jianpeng Wang ; Gang Zhang

A dual-band bandpass filter with quasi-elliptic response using a substrate integrated waveguide for 60 GHz dual-band wireless communication systems is proposed. It is fabricated with standard low-temperature co-fired ceramic (LTCC) technology. The measured results indicate that the filter is operating at 59.78 and 61.56 GHz with fractional bandwidths of 2.1 and 2.2%, and minimum in-band insertion losses of 3.61 and 3.55 dB, respectively. Furthermore, the proposed filter exhibits an electrical size (including the CPW measurement pads) of 2.38λg × 3.14λg, where λg is the guided wavelength at 60 GHz.

Published in:

Electronics Letters  (Volume:49 ,  Issue: 16 )