Abstract

Based on the requirement of IPD RF SIP application, the silicon based inductor and capacitor and rules have been studied at first. Meanwhile, a two-order silicon-based 2.4GHz bandpass filter with the size of 1.8mm*1.8mm was obtained by the combination of inductances and capacitors. The insertion loss at 2.4GHz is −1.35dB. Furthermore, to improve the selective of the bandpass filter, one transmission zero has been introduced by adding extra parallel inductances to the original structure. The size of the improved filter is 2.3mm*1.7mm, and the insertion loss at 2.4GHz is −1.63dB. The electromagnetic field simulation software HFSS was applied to design and optimize the characters of these structures.

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