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Flexible and miniaturized power divider

Published online by Cambridge University Press:  23 March 2015

François Burdin ,
Florence Podevin  and
Philippe Ferrari
François Burdin
Affiliation:
IMEP-LAHC, Grenoble-Alpes University, CNRS, CS 50257, 38016 Grenoble cedex, France
Florence Podevin*
Affiliation:
IMEP-LAHC, Grenoble-Alpes University, CNRS, CS 50257, 38016 Grenoble cedex, France
Philippe Ferrari
Affiliation:
IMEP-LAHC, Grenoble-Alpes University, CNRS, CS 50257, 38016 Grenoble cedex, France
*
Corresponding author: F. Podevin, Email: florence.podevin@grenoble-inp.fr
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Abstract

A new flexible and miniaturized power divider (PD), based on the Wilkinson PD topology, is carried out in this paper. Flexibility and size reduction are achieved simultaneously thanks to both an open-stub loading the input port and additional transmission lines (TLines) connecting the output ports to the isolation resistance. Design equations and rules are given. As a proof-of-concept, two PDs working at 2.45 GHz were fabricated and measured. Then, on the basis of the previous developments, a 1:4 power-dividing feeding network was realized. It highlights the high performance and flexibility of the proposed PD. Agreement between simulation and measurement results is very good, for PDs as well as for the feeding network, thus validating the proposed approach. This concept is straightforward to be applied at higher frequencies, in particular in the millimeter-wave range on CMOS technologies, where flexibility in the choice of the TLines characteristic impedances and size reduction are mandatory.

Keywords

Wilkinson power dividersFlexibilityMiniaturization
Type
Research Paper
Information
International Journal of Microwave and Wireless Technologies , Volume 8 , Issue 3: Journee Nationale des Micro-ondes (JNM) 2015 , May 2016 , pp. 547 - 557
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2015 

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References

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