An open ring resonator (ORR) loaded with a varactor diode is designed and implemented in order to achieve high-performance tunable band-stop filters in planar technology with a compact size. This varactor-loaded ORR (VLORR) is versatile. It allows a shunt connection with different planar waveguide sections. In this paper, it has been connected to a coplanar waveguide (CPW) and a half-mode subst...

This paper describes a novel Substrate Integrated Waveguide (SIW) bandpass filter using Chebyshev approximation and Half Mode (HMSIW) modeling technique. The developed 3 rd order structure uses an inductive iris post station in way it resonates Ka frequency band serving wireless applications. presents details steps of the design formed by specific analytical equations to extract its different s...

A comprehensive survey of the reconfigurable leaky-wave antennas (LWAs) is made in this paper. Beam-steering and unique radiating features LWA are highlighted particularly. Therefore, radiation mechanism different types LWA, including uniform, quasi-uniform, periodic, metamaterial LWAs discussed detail. The guiding structures for realizing LWAs, namely microstrip, waveguide, substrate integrate...