This book discusses surrogate modeling of high-frequency structures including antenna and
microwave components. The focus is on constrained or performance-driven surrogates. The …

In this article, a new design approach for developing hybrid couplers with arbitrary power
division and the phase difference is presented. The design is based on a transformer-based …

Communication systems are witnessing an outstanding revolution that has a clear impact on
all aspects of life. The world technology is drifting towards high frequency and data rate …

To address the issues of the inconvenient fabrication and integration for millimeter-wave
(MMW) dielectric resonator antennas (DRAs), a new configuration is proposed. First, a …

A wideband circularly polarized (CP) dielectric resonator antenna (DRA) with filtering
response was proposed in this communication. To combine additional filtering and harmonic …

There is an ever increasing demand for both function integration and improved performance
in wireless communication devices. Therefore, the integration of efficient linearizing …

A tunable directional coupler with outputs that have continuously tuned phase difference
and constant magnitude is presented. The initial design is based on a 3-dB branch-line …

For the first time, this paper presents a novel approach for designing a coupler with arbitrary
division, optional phase difference, and alternative input/output impedances. In the section …

The evolution of a wireless communication system to the fifth generation is accompanied by
a huge improvement in the performance of the communication system through providing …

A compact ultra-wideband printed ridge gap waveguide directional couplers for millimeter-
wave applications are presented in this paper. A multi-layer coupling technique between two …