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Multi-Dielectric & Multi-Band operations on RF MEMS
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 Title & Authors
Multi-Dielectric & Multi-Band operations on RF MEMS
Gogna, Rahul; Gaba, Gurjot Singh; Jha, Mayuri; Prakash, Aditya;
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 Abstract
Ever increasing demand for microwave operated applications has cultivated need for high-performance universal systems capable of working on multi-bands. This objective can be realized using Multi-Dielectrics in RF MEMS capacitive switch. In this study, we present a detailed analysis of the effect of various dielectrics on switch performance. The design consists of a capacitive switch and performance is analyzed by changing the dielectric layers beneath the switch. The results are obtained using three different dielectrics including Silicon nitride (7.6), Hafnium dioxide (25) and Titanium oxide (50). Testing of proposed switch yields high isolation (- 87.5 dB) and low insertion loss (- 0.1 dB at 50 GHz) which is substantially better than the conventional switches. The operating bandwidth of the proposed switch (DC to 95 GHz) makes it suitable for wide band microwave applications.
 Keywords
RF MEMS;Multi-band;Multi-dielectric;Low insertion;High isolation;Broadband antennas;
 Language
English
 Cited by
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