A half‐mode substrate integrated waveguide filtering power divider with Fourier‐varying via holes

Abstract

In this article, a novel design methodology of a half‐mode substrate integrated waveguide (HM‐SIW) filtering Wilkinson power divider is proposed. The width between the two metallic rows of vias in the conventional HM‐SIW divider is governed by a truncated Fourier series expansion to obtain specific passband/stopband performance. The optimized varying width is obtained using the even‐mode analysis, whereas the odd‐mode analysis is used to find the optimum values of three isolation resistors that achieve acceptable isolation and output ports matching over specific frequency range. For validation, a HM‐SIW divider with a center frequency of 12.3 GHz and 3.7% 10‐dB fractional bandwidth is designed, simulated, and measured. Simulated and measured results show a good agreement with passband return loss and transmission losses better than −15 and −3.0 dB, respectively.

Investigation and Implementation of Integrated SIW System for Hexagonal Diamond of Lamda Shape Slots Fractal Array Antenna for X and KU-Band Applications

“…There are several types as dividers: T, Y and Wilkinson power divider. The proposed structure in this paper is a new shape of the SIW three ports rhombic wraparound power divider where input power at port 1 is equally (-3 dB) transmitted to two isolated output ports 2 and 3.The SIW power dividers are essential component in different applications such as phased array, slot array , fractal array antenna and feeding systems which require split and dividing power equally over a wide bandwidth [42][43][44][45]. The proposed SIW divider introduces an equal and in-phase output power division from isolated ports 2 and 3.…”

A three‐way fan‐shaped power divider as a feed‐network of aperture‐coupled antenna arrays

“…A power divider is one of the fundamental building blocks of microwave circuits like phased array antenna feed networks, mixers, and multiplexers. [1][2][3] As a reciprocal circuit, a power divider plays a vital role in feeding power to the elements of a phased array antenna (PAA). 4,5 Though the low-loss conventional rectangular waveguide power divider can handle high power, its bulkiness makes it unappealing for PAA.…”

“…A power divider is one of the fundamental building blocks of microwave circuits like phased array antenna feed networks, mixers, and multiplexers 1–3 . As a reciprocal circuit, a power divider plays a vital role in feeding power to the elements of a phased array antenna (PAA) 4,5 .…”