Microwave band pass filters play an important function in radio frequency for suppressing
out-of-band emissions that are necessary in today's wireless communication. The study …

The cognitive radio paradigm for developing next-century wireless communication systems
is rapidly entering the mainstream, and various aspects of it are currently being applied in …

RF MEMS technology was initially developed as a replacement for GaAs HEMT switches
and pin diodes for low-loss switching networks and X-band to mm-wave phase shifters …

This dissertation presents three new approaches to the design of phased array antennas in
order to reduce their complexity. The first approach is based on extended resonance …

A tunable third-order combline bandpass filter using thin-film barium-strontium-titanate
varactors and fabricated on a sapphire substrate is reported. Application of 0-200-V bias …

This paper presents the modeling, design, fabrication, and measurement of
microelectromechanical systems-enabled continuously tunable evanescent-mode …

This paper presents a state-of-the-art RF microelectromechanical systems wide-band
miniature tunable filter designed for 6.5-10-GHz frequency range. The differential filter …

A method is introduced for designing bandpass frequency-selective surfaces (FSSs) using
arrays of antenna-filter-antenna (AFA) modules. An AFA module is a filter with radiation …

A new combline filter structure with a continuous tunability for both the center frequency and
bandwidth is presented in this paper. The passband-width tunability is achieved by placing …

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 …