Reconfigurable double-stub tuners using MEMS switches for intelligent RF front-ends

This paper presents novel planar dynamically reconfigurable double-stub tuners that utilize electrostatically activated microelectromechanical system (MEMS) switches. The tuners operate in the 10-20 GHz frequency range and have stubs that consist of a digital capacitor bank. Each bank has a predetermined number of capacitors that can be selected through the activation of appropriate MEMS switches. The value and number of capacitors is dictated by the range of loads that needs to be matched. Simulated and measured results from several designs are presented. A 4 bit * 4 bit tuner that can match loads with 1.5 (omega)< systems-ona-chip. and microsystems front-end RF intelligent low-power low-cost future of part be will circuits these that expected is It arrays. antenna broad-band very multipliers, ultra-wide-band amplifiers, power-added-efficiency increased power output high as such millimeter-wave microwave integrated highly novel several development the include Applications operation. system during values change loads for matching reconfiguration real-time provide tuners demonstrated The designs. other well time, first GHz 10 at (Omega)