Planar Reflective Phaser and Synthesis for Radio Analog Signal Processing (R-ASP)

TL;DR

This paper introduces a novel planar reflective phaser that combines high resolution and compactness, demonstrated through a synthesized 4th-order microstrip device suitable for Radio Analog Signal Processing applications.

Contribution

It presents the first planar reflective phaser that merges high resolution with compact planar circuit design, along with a practical synthesized and experimentally validated example.

Findings

Achieved a 4-ns swing in phase over 4.9-5.5 GHz

Demonstrated a 4th-order microstrip phaser with linear group delay

Validated the design through experimental measurements

Abstract

A planar reflective phaser based on an open-ended edge-coupled-line structure is proposed. This phaser is the first reported phaser that combines the benefits of high resolution, inherent to cross-coupled resonator reflective phasers, and of compactness, inherent to planar circuits. A 4-ns swing 4.9-5.5 GHz quadratic phase (linear group delay) 4th-order microstrip phaser is synthesized and experimentally demonstrated. Given its advantages, this phaser may find vast applications in Radio Analog Signal Processing (R-ASP) systems.