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Design and analysis of a high-power radial multi-way combiner

Published online by Cambridge University Press:  16 October 2013

Akhilesh Jain ,
Alok K. Gupta ,
Deepak Kumar Sharma ,
Pundlik Rama Hannurkar  and
Surya Kant Pathak
Akhilesh Jain*
Affiliation:
RF Systems Division, Raja Ramanna Centre for Advanced Technology, Indore452013, MP, India. Phone: +91 731 2442725
Alok K. Gupta
Affiliation:
RF Systems Division, Raja Ramanna Centre for Advanced Technology, Indore452013, MP, India. Phone: +91 731 2442725
Deepak Kumar Sharma
Affiliation:
RF Systems Division, Raja Ramanna Centre for Advanced Technology, Indore452013, MP, India. Phone: +91 731 2442725
Pundlik Rama Hannurkar
Affiliation:
RF Systems Division, Raja Ramanna Centre for Advanced Technology, Indore452013, MP, India. Phone: +91 731 2442725
Surya Kant Pathak
Affiliation:
Electromagnetics and Microwave Engineering, Institute for Plasma Research, Gandhinagar382 428, Gujarat, India
*
Corresponding author: A. Jain Email: ajain@rrcat.gov.in
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Abstract

In this paper, the design analysis of a multi-way and high-power radial combiner is presented. This combiner incorporates a rigid stripline-type combining structure. This analysis, based on an equivalent circuit model and segmentation of the radial transmission line, provides simple design formulae. The developed methodology, after fine-tuning with the help of an electromagnetic full-wave simulator, is physically demonstrated by developing a high-power (16 kW average) and high combining-efficiency (98.9%) 16-way combiner at the center frequency of 505.8 MHz. Its efficient and repeatable performance, fabrication-friendly structure, and absence of the heat-related problem, caused by the isolation resistor, are the main features of this design.

Keywords

RF power combinerRadial transmission lineSolid-state amplifierParticle accelerator
Type
Research Papers
Information
International Journal of Microwave and Wireless Technologies , Volume 6 , Issue 1: IJMWT Special Issue on the 2013 National Microwave Days in France , February 2014 , pp. 83 - 91
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2013 

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