The ridge waveguide, which is a rectangular waveguide with one or more metal inserts
(ridges), is an important transmission line in microwave engineering, through which many …

A quarter-wave broadband ridged waveguide bandpass filter with improved attenuation has
been designed and realized. The two-step synthesis uses an equivalent network whose …

The problem of arbitrarily incident plane-wave scattering from rod structures of thick
conducting plates arranged with two-dimensional (2D) periodicity has been examined. The …

Modal network theory has proven to be a useful tool in analyzing waveguide discontinuities.
Ports of a modal network correspond to waveguide eigenmodes on either side of the …

A new microwave method proposed for modeling the plant leaves in the wave-guide is
presented. In our model, we introduce a model based on the geometrical structure of …

An extremely wideband ridge waveguide filter is presented. The fractional bandwidth of the
filter can be greater than 115%. An input and output transition from ridge waveguide to …

The design of waveguide low-pass filters is accomplished with a new method, where focus
is on the upper stopband performance rather than passband or roll-off requirements. Using …

A scale changing approach is proposed for the electromagnetic modeling of phase-shifter
elements used in reconfigurable microelectromechanical system (MEMS)-controlled …

Abstract The concept of Scale-Changing Network is reported for the electromagnetic
modeling of complex planar structures composed of a collection of metallic patterns printed …

Mode-converting metasurfaces are passive, lossless devices that can be designed to
transform a set of incident modes to a desired set of transmitted modes. In this paper, mode …