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 language | English |
|---|---|
| Title of host publication | 2016 International Conference on Telecommunications and Multimedia, TEMU 2016 |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| Pages | 30-35 |
| Number of pages | 6 |
| ISBN (Electronic) | 9781467384094 |
| DOIs | |
| Publication status | Published - 24 Aug 2016 |
| Event | 2016 International Conference on Telecommunications and Multimedia - Heraklion, Crete, Greece Duration: 25 Jul 2016 → 27 Jul 2016 http://www.temu.gr/ (Link to Conference Website ) |
Conference
| Conference | 2016 International Conference on Telecommunications and Multimedia |
|---|---|
| Abbreviated title | TEMU 2016 |
| Country | Greece |
| City | Crete |
| Period | 25/07/16 → 27/07/16 |
| Internet address |
|
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Near optimal synthesis of exponential log-periodic dipole array geometry by applying invasive weed optimization. / Zaharis, Zaharias D.; Yioultsis, Traianos V.; Skeberis, Christos; Xenos, Thomas D.; Lazaridis, Pavlos I.; Stratakis, Dimitrios I.; Pallis, Evangelos.
2016 International Conference on Telecommunications and Multimedia, TEMU 2016. Institute of Electrical and Electronics Engineers Inc., 2016. p. 30-35 7551911.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
TY - GEN
T1 - Near optimal synthesis of exponential log-periodic dipole array geometry by applying invasive weed optimization
AU - Zaharis, Zaharias D.
AU - Yioultsis, Traianos V.
AU - Skeberis, Christos
AU - Xenos, Thomas D.
AU - Lazaridis, Pavlos I.
AU - Stratakis, Dimitrios I.
AU - Pallis, Evangelos
N1 - No record of this in Eprints. HN 25/10/2017
PY - 2016/8/24
Y1 - 2016/8/24
N2 - 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.
AB - 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.
KW - Antenna design
KW - antenna optimization
KW - invasive weed optimization
KW - log-periodic antenna
KW - log-periodic dipole array
UR - http://www.scopus.com/inward/record.url?scp=84988447246&partnerID=8YFLogxK
U2 - 10.1109/TEMU.2016.7551911
DO - 10.1109/TEMU.2016.7551911
M3 - Conference contribution
SP - 30
EP - 35
BT - 2016 International Conference on Telecommunications and Multimedia, TEMU 2016
PB - Institute of Electrical and Electronics Engineers Inc.
ER -