Hybrid-pair ratio adjustable power splitters for add-on RF shimming and array-compressed parallel transmission.

ABSTRACT:

Purpose

A ratio adjustable power splitter (RAPS) circuit was recently proposed for add-on RF shimming and array-compressed parallel transmission. Here we propose a new RAPS circuit design based on off-the-shelf components for improved performance and manufacturability.

Theory and methods

The original RAPS used a pair of home-built Wilkinson splitter and hybrid coupler connected by a pair of connectorized coaxial cables. Here we propose a new hybrid-pair RAPS (or HP-RAPS) circuit that replaces the home-built circuits with two commercially available hybrid couplers and replaces connectorized cables with interchangeable microstrip lines. We derive the relation between the desired splitting ratio and the required phase shifts for HP-RAPS and investigate how to generate arbitrary

SUBMITTER: Zhu Y 

PROVIDER: S-EPMC8568636 | biostudies-literature | 2021 Dec

REPOSITORIES: biostudies-literature