This paper presents a concept of a tunable cavity resonator composed of a resonating cavity
and a dielectric perturber. This tunable resonator is designed and measured to prove the …

Dual-mode and/or dual-band microwave filters often employ high quality factor (Q),
physically large, and frequency static cavity resonators or low Q, compact, and tunable …

This paper introduces a new concept capable of obtaining a wide frequency excursion,
kee** high electrical performances. To reach such performances, the use of waveguide …

A microwave characterization of (Ba, Sr) TiO 3 (BST) thin films of different thickness has
been carried out by means of a fully comprehensive equivalent circuit applied to …

This paper presents a novel uniplanar tunable bandpass filter. In this filter, each resonator
can be reconfigured easily using PIN diodes or MEMS switches. Design equations are …

The voltage-and frequency-dependent material properties of (Ba, Sr) TiO3 (BST) thin film
have been extracted up to 67 GHz by means of a lumped elements equivalent circuit …

Актуальность работы. Частотно-селективные и электрически управляемые устройства
сверхвысоких частот (СВЧ) являются важнейшими элементами современных …

A type of tunable narrow-bandpass filter is proposed in this paper. Fourth-order microstrip
ring resonator with magnetic coupling is employed and loaded with varactors for achieving …

Software defined radio and cognitive radio (SDR/CR) are promising concepts toward more
optimally using the electromagnetic spectrum for communications and data transfer. These …

In a wireless system, the frequency-reconfigurable RF components are highly desired
because one such component can replace multiple RF components to reduce the size, cost …