G. Zheng

TL;DR: In this article, the authors presented the development of tunable filters using ohmic contact microelectromechanical system switches, which is very well suited for the fabrication of low-loss high tuning-range microwave filters.

TL;DR: In this article, a via-less coplanar waveguide (CPW) to microstrip transition is discussed and design rules based on simulations and experimental results are presented, which demonstrates a maximum insertion loss of 1 dB over the frequency range from 10 GHz to 40 GHz with a value of 0.4 dB at 20 GHz.

TL;DR: In this article, a self-similar multiband reconfigurable antenna includes a planar antenna structure formed on a surface of a substrate, the antenna structure including symmetrically opposed selfsimilar geometry antenna arms defining a selfsimilar or Sierpinski gasket configuration for each arm of the antenna.

TL;DR: In this article, the use of series ohmic contact cantilever RF MEMS switches in coordination with a simple self-similar antenna is exploited, which can lead to large increases in antenna performance, since not only a wider selection of frequencies but also several different radiation patterns can be radiated with a single antenna.