Analysis of NEMS Switch Using Changeable Space Domain

With the rapid development of RF-MEMS (NEMS) switch, high isolation, low insertion loss, good linear characteristic and low power consumption microwave switches are impending. Through analysis of electrics and mechanics of the RF switch, a novel NEMS switch with nano-scaling is presented in this paper. The measured data show the pull-in voltage of 24.1V and the good RF performance of the insertion loss of beyond -20dB @0-40GHz on the "on" state, the isolation of below -25dB at 0-40GHz on the "off" state, indicating that the witch is suitable for the 0-20GHz applications. The Haar-Wavelet-Based multiresolution time domain (MRTD) with compactly supported scaling function presented is used for modeling and analyzing the nanomachine switch for the first time. The algorithm of the method is real-time time and space adaptive grids through the efficient thresholding of the wavelet coefficients. Analysis shows that the NEMS switch not only can work in wide frequency bands, but also has better isolation performance in lower frequency, and thus extending the application to the lower band. Though there has errors about 3% between the measured and computed results, we analyze the main causes and do our best to find the solution for next work.