Near optimal synthesis of exponential log-periodic dipole array geometry by applying invasive weed optimization

Zaharias D. Zaharis, Traianos V. Yioultsis, Christos Skeberis, Thomas D. Xenos, Pavlos I. Lazaridis, Dimitrios I. Stratakis, Evangelos Pallis

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A new geometry of log-periodic dipole array (LPDA) is presented in this work. Unlike the traditional LPDA geometry, where all dipoles are considered to be inside the same angular sector, the proposed LPDA adopts an exponential geometry, described by two parameters called exponential scale factor and exponential relative spacing. By properly adjusting these two parameters, the exponential LPDA (ELPDA) geometry obtains wideband behavior with excellent radiation characteristics. A near optimal ELPDA geometry that achieves the desired radiation characteristics inside the required bandwidth is found in the present work by applying a recently developed method called invasive weed optimization (IWO). In particular, the ELPDA is required to operate in the 800-3300MHz frequency range under specific constraints concerning standing wave ratio, forward gain, gain flatness, front-to-back ratio and side lobe level. A comparison with a traditional LPDA of the same total antenna length exhibits the superiority of the proposed geometry.

Original languageEnglish
Title of host publication2016 International Conference on Telecommunications and Multimedia, TEMU 2016
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages30-35
Number of pages6
ISBN (Electronic)9781467384094
DOIs
Publication statusPublished - 24 Aug 2016
Event2016 International Conference on Telecommunications and Multimedia - Heraklion, Heraklion, Greece
Duration: 25 Jul 201627 Jul 2016
http://www.temu.gr/

Conference

Conference2016 International Conference on Telecommunications and Multimedia
Abbreviated titleTEMU 2016
CountryGreece
CityHeraklion
Period25/07/1627/07/16
Internet address

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Zaharis, Z. D., Yioultsis, T. V., Skeberis, C., Xenos, T. D., Lazaridis, P. I., Stratakis, D. I., & Pallis, E. (2016). Near optimal synthesis of exponential log-periodic dipole array geometry by applying invasive weed optimization. In 2016 International Conference on Telecommunications and Multimedia, TEMU 2016 (pp. 30-35). [7551911] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/TEMU.2016.7551911