New coplanar waveguide feed network for 2 × 2 linearly tapered slot antenna subarray

Abstract

A new technique for exciting 2 × 2 subarray of linearly tapered slot antennas (LTSAs) with coplanar waveguide (CPW) is presented. rf power is coupled to each element through a CPW‐to‐slotline transition by a coax‐to‐CPW in‐phase four‐way radial power divider. The transition and the power divider are coupled by a novel nonplanar CPW right‐angle bend. Measured results at 18 GHz show excellent radiation patterns and return‐loss characteristics. © 1992 John Wiley & Sons, Inc.

Theoretical and experimental study of microstrip-to-slot line uniplanar transition

“…In this paper, the finite element method and the finite difference time domain technique have been employed for the characterization of the microstrip-to-slotline transition shown in Figure 1. This type of transition has potential to integrate MMIC based components such as phase shifters and amplifiers in the feed network of linearly tapered slot antenna arrays [3]. Derived theoretical data are compared to measurements.…”