Reconfigurable phased-array design techniques for 5G and beyond communications

This paper presents the design of multi-band millimeter-wave (mmW) phased-array communication systems for wideband applications. A multi-band matching network (MN) design is proposed using a novel low-loss reconfigurable-inductor (RI). Furthermore, a reconfigurable-transformer (RT) is shown for an accurate neutralization of the gate-drain capacitance (C_gd), which improves the efficiency and stability of mmW power-amplifiers (PAs). The proposed reconfigurable design techniques can be used in the design of phased-array front-end circuits to maximize their power-efficiency and bandwidth (BW).

I. Introduction

Wireless communication is driving growth worldwide through a growing number of applications, e.g., internet of things, cloud computing, and healthcare. However, the current wireless networks operating below 6 GHz cannot meet the increasing demands due to the proliferation of data-hungry applications coupled with dramatic user growth enabled by low-cost mobile devices. The mmW bands are ideal to address the existing BW limitations [1].