Millimeter Wave Subarray Based on an Innovative Design to Attain Improved Characteristics Uniformly Across All Radiation Planes

Abstract

This work explores an advance design of millimeter wave (mm-wave) subarray using microstrip elements by mitigating the issues of back side and cross-polarized (XP) radiations. A K-band design has been presented. A simple and straight forward technique in the form of ground plane shaping has been employed. Strategic truncation of the ground corners reveals a significant improvement in back-radiation across all planes. It also helps in improving XP characteristics over both orthogonal and diagonal planes. This simple technique should find potential uses in mm-wave domain for industry applications.