Proceedings of the International Conference on Computer Information Systems and Industrial Applications

Design of Compact Wideband Circularly Polarized Conical Helix

Authors
J.N Mei, D.W Ding, G. Wang
Corresponding Author
J.N Mei
Available Online June 2015.
DOI
https://doi.org/10.2991/cisia-15.2015.37How to use a DOI?
Keywords
circular polarization; helical antenna; conical helix; wideband antenna
Abstract
A novel compact wideband circularly-polarized (CP) helix antenna is presented in this paper. Unlike conventional helical geometry, our design adopts a tapered metal strip which is rolled into a conical shape and is simply fed by attaching to a 50? coaxial cable. All the configuration parameters are optimized by using modified multiobjective evolutionary algorithm based on decomposition (MOEA/D) for broad operation bandwidth. The proposed helix antenna provides a -10 dB impedance bandwidth of more than 81% from 2.1GHz to above 5GHz, a 3-dB axial-ratio bandwidth of 58% (2.4GHz~4.36GHz), and a 8dBi axial gain bandwidth of 72.5% (2.18GHz~4.66GHz), which leads to an effective CP operation bandwidth of 58%. The overall size of the design is 40mm×40mm× 40mm, i.e., 0.45?×0.45?×0.45? at the centre frequency of 3.38GHz. The compact size and wideband CP performance of this antenna make it promising for high speed wireless communication systems today.
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Proceedings
International Conference on Computer Information Systems and Industrial Applications
Part of series
Advances in Computer Science Research
Publication Date
June 2015
ISBN
978-94-62520-72-1
DOI
https://doi.org/10.2991/cisia-15.2015.37How to use a DOI?
Open Access
This is an open access article distributed under the CC BY-NC license.

Cite this article

TY  - CONF
AU  - J.N Mei
AU  - D.W Ding
AU  - G. Wang
PY  - 2015/06
DA  - 2015/06
TI  - Design of Compact Wideband Circularly Polarized Conical Helix
BT  - International Conference on Computer Information Systems and Industrial Applications
PB  - Atlantis Press
UR  - https://doi.org/10.2991/cisia-15.2015.37
DO  - https://doi.org/10.2991/cisia-15.2015.37
ID  - Mei2015/06
ER  -