Millimeter-wave RF-MEMS SPDT switch networks in a SiGe BiCMOS process technology
2012
This paper presents mm-wave capacitive RF-MEMS based Single-Pole-Double-Throw (SPDT) switches fabricated in a SiGe BiCMOS process technology. Three different SiGe RF-MEMS based SPDTs (targeting the 40–80 GHz range) present 3–4 dB of in-band losses and up to 20–25 dB of isolation, respectively. The measured in-band attenuation of the characterized SiGe MEMS SPDTs corresponds to a loss of 2–3 dB when close to 1 dB of combined losses within the RF pads has been removed. The experimental s-parameter data was obtained from RF-tests of more than 300 characterized SPDT switch networks indicating a high fabrication yield and process repeatability of the fabricated SiGe MEMS circuits. The validated SiGe MEMS switch circuits can enable single-chip reconfigurable ICs for wireless communication and sensing applications up to 100 GHz.
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