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Graphical design method for unequal power dividers based on phase-balanced SIW tee-junctions

Published online by Cambridge University Press:  18 June 2013

Soraya Contreras  and
Alain Peden
Soraya Contreras*
Affiliation:
Lab-STICC, Télécom Bretagne, Technopôle Brest-Iroise, CS 83818, 29200 Brest Cedex 3, France. Phone: +33 229 00 10 15
Alain Peden
Affiliation:
Lab-STICC, Télécom Bretagne, Technopôle Brest-Iroise, CS 83818, 29200 Brest Cedex 3, France. Phone: +33 229 00 10 15
*
Corresponding author: S. Contreras Email: soraya.contreras@telecom-bretagne.eu
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Abstract

This paper presents a detailed procedure to design substrate integrated waveguide (SIW) Tee-junctions with wide-range split-power ratio (from 1:1 to 1:8) and phase-balanced outputs. A set of curves was generated using an electromagnetic (EM) simulator to graphically determine the required parameters for the desired junction. Since such curves are provided, no further electromagnetic simulation is required when applying the proposed method. Input return loss at central frequency is guaranteed to be better than 18 dB. If an optimization procedure is required, the parameters obtained from this methodology may be used as initial values for such a process. Moreover, design rules are given for implementing 1 → 2N unequal power dividers with phase-balanced outputs. To demonstrate the accuracy of the proposed graphical method, three implementation examples are provided: two Tee-junctions and a 1 → 4 power divider.

Keywords

Passive components and circuitsModelingSimulation and characterizations of devices and circuits
Type
Research Papers
Information
International Journal of Microwave and Wireless Technologies , Volume 5 , Issue 5 , October 2013 , pp. 603 - 610
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2013 

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