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     Research Journal of Applied Sciences, Engineering and Technology


Unequal Divider with Asymmetric Shunt Open Stub for Reduced Size and Harmonic Suppression

Young Kim
School of Electronic Engineering, Kumoh National Institute of Technology, 61 Daehak-ro, Gumi, Gyungbuk, 39177, Korea
Research Journal of Applied Sciences, Engineering and Technology  2016  12:879-884
http://dx.doi.org/10.19026/rjaset.13.3760  |  © The Author(s) 2016
Received: September 23, 2016  |  Accepted: November 15, 2016  |  Published: December 15, 2016

Abstract

This study presents an unequal divider with asymmetric shunt open stubs to reduce circuit size and achieve harmonic suppression. The design method was derived from S- to admittance parameter conversion of unequal divider. We validated the use of the parameter conversion method to reduce the size and achieve harmonic suppression of the unequal divider by implementing the divider at a power ratio of 3 at a center frequency of 1 GHz. The measured characteristics agreed well with the results of the calculation and the harmonic suppression was improved by more than 14 dB between the 2nd and 4th harmonics with 20% reduction in size compared to a conventional divider.

Keywords:

Asymmetric shunt open stub, harmonic suppression, reduced size, S-parameter conversion, unequal divider,


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Competing interests

The authors have no competing interests.

Open Access Policy

This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

Copyright

The authors have no competing interests.

ISSN (Online):  2040-7467
ISSN (Print):   2040-7459
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