In this paper, the authors present a design technique that enables inter-resonator and
external coupling control for high-quality-factor (Q) tunable bandpass filters. The design …

The prospects for and the state of the art of adaptable RF hardware are reviewed, focusing
primarily on the traditional frequency planning bottleneck, the filtering stages. First, a case is …

This paper presents the development of tunable filters using ohmic contact
microelectromechanical system switches. It is shown that this type of switch is very well …

A class of input reflectionless dual-behavior resonator (DBR)-based bandpass filters (BPFs)
with reconfigurable center frequency, bandwidth, out-of-band attenuation, and intrinsic …

A new type of reconfigurable asymmetric frequency response bandpass filter using dual-
mode open-loop resonator is investigated. It explores the unique characteristic of the dual …

A new class of reconfigurable bandpass filter based on parallel-coupled switched delay line
approach is presented in this paper. The approach allows both center frequency and …

A reconfigurable band-pass filter for wireless applications has been designed and
demonstrated. The topology has been designed on Duroid, a low cost organic substrate …

This paper demonstrates a six-state reconfigurable band-pass filter intended to add
frequency tunability to antenna systems. The present topology produces filter responses with …

This paper describes a discretely tunable filter topology based on lumped-distributed
coupled transmission lines, particularly suitable for microelectromechanical systems …

In this paper, fully monolithic reconfigurable millimeter-wave filters are proposed using the
CPW-based periodic structures with novel multiple-contact MEMS switches. Millimeter-wave …