Design of improved ring Wilkinson power divider for millimetre wave applications

An improved millimetre wave microstrip power divider is presented. This circuit enhanced the conventional Wilkinson power divider (WPD) performance by adding transmission lines between the transformer arms and the resistor to reduce inherent undesirable mutual coupling. The proposed power divider de...

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Bibliographic Details
Published in:Electronics letters 2017-04, Vol.53 (8), p.542-544
Main Authors: Hammou, D, Nedil, M, Tatu, S.O
Format: Article
Language:English
Subjects:
Circuits
Design parameters
Electronics
frequency 61 GHz
Frequency bands
Frequency stability
high permittivity thin ceramic substrate
improved millimetre wave microstrip power divider
improved ring Wilkinson power divider design
input‐output matching
insertion loss
Microwave technology
millimetre wave devices
mutual coupling
permittivity
Power dividers
resistor
resistors
transformer arms
Transformers
Transmission lines
WPD performance
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Description
Summary:An improved millimetre wave microstrip power divider is presented. This circuit enhanced the conventional Wilkinson power divider (WPD) performance by adding transmission lines between the transformer arms and the resistor to reduce inherent undesirable mutual coupling. The proposed power divider design parameters show more stability over a wider frequency band compared to other valid design solutions. For comparison purposes, the proposed power divider along with the WPD are designed at 61 GHz using high permittivity thin ceramic substrate. The measurement results of the proposed circuit demonstrate improved bandwidth with high input/output matching and isolation of −15 and −24 dB, respectively, in the whole frequency band of 10 GHz. Furthermore, the excess insertion loss is reduced by 20% compared to the conventional one.
ISSN:0013-5194
1350-911X
1350-911X
DOI:10.1049/el.2017.0380