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This document describes a low-loss cavity filter for 60 GHz applications using low-temperature cofired ceramic (LTCC) technology. Rectangular cavity resonators are implemented using via fences as side walls. A slot excitation with a λg/4 open stub is used to excite the cavity resonators. Measurement results show the cavity resonator provides an insertion loss < 0.84 dB and return loss >20.6 dB over a 1.5% bandwidth (~0.89 GHz) centered at 58.7 GHz. A 3-pole band pass filter is developed using three coupled

Author

Sami

Language

EN