Design, optimization, and realization of a wire antenna with a 25:1 bandwidth ratio for terrestrial communications
Wire antennas can be made wideband if the antenna is loaded with passive elements and connected to a lossless matching network. However, realization of the load component values and matching network can easily become impractical. In this study, using only a surface mount and standard component values, antenna loads and a matching network are optimized using genetic algorithms. The optimized design achieves a 25:1 bandwidth ratio, from 20 MHz to 500 MHz, with a maximum voltage standing wave ratio (VSWR) of 3.5 and minimum system gain of --5 dBi. The antenna system gain at azimuth is taken as the objective function and an exact penalty function is formulated to take into account the VSWR over the design frequency band. A loaded antenna is built and measured to corroborate the simulations results. The realized antenna is only 0.14 lambda long at 20 MHz.
| Dergi Adı | Turkish Journal of Electrical Engineering and Computer Sciences |
| Cild | 22 |
| Dergi Sayısı | 2 |
| Sayfalar | 371 - 379 |
| Yayın Tarihi | 2014 |
| Eser Adı [dc.title] | Design, optimization, and realization of a wire antenna with a 25:1 bandwidth ratio for terrestrial communications |
| Yazar [dc.contributor.author] | Yeğin, Korkut |
| Yayın Türü [dc.type] | article |
| Özet [dc.description.abstract] | Wire antennas can be made wideband if the antenna is loaded with passive elements and connected to a lossless matching network. However, realization of the load component values and matching network can easily become impractical. In this study, using only a surface mount and standard component values, antenna loads and a matching network are optimized using genetic algorithms. The optimized design achieves a 25:1 bandwidth ratio, from 20 MHz to 500 MHz, with a maximum voltage standing wave ratio (VSWR) of 3.5 and minimum system gain of --5 dBi. The antenna system gain at azimuth is taken as the objective function and an exact penalty function is formulated to take into account the VSWR over the design frequency band. A loaded antenna is built and measured to corroborate the simulations results. The realized antenna is only 0.14 lambda long at 20 MHz. |
| Kayıt Giriş Tarihi [dc.date.accessioned] | 2020-03-18 |
| Yayın Tarihi [dc.date.issued] | 2014 |
| Açık Erişim Tarihi [dc.date.available] | 2020-03-18 |
| Dil [dc.language.iso] | eng |
| Konu Başlıkları [dc.subject] | Mühendislik |
| Konu Başlıkları [dc.subject] | Elektrik ve Elektronik |
| Haklar [dc.rights] | info:eu-repo/semantics/openAccess |
| ISSN [dc.identifier.issn] | 1300-0632 |
| ISSN [dc.identifier.issn] | 1300-0632 |
| Yayının ilk sayfa sayısı [dc.identifier.startpage] | 371 |
| Yayının son sayfa sayısı [dc.identifier.endpage] | 379 |
| Dergi Adı [dc.relation.journal] | Turkish Journal of Electrical Engineering and Computer Sciences |
| Dergi Sayısı [dc.identifier.issue] | 2 |
| Cild [dc.identifier.volume] | 22 |
| Tek Biçim Adres [dc.identifier.uri] | http://www.trdizin.gov.tr/publication/paper/detail/TWpFek9UTXdNQT09 |
| Tek Biçim Adres [dc.identifier.uri] | https://hdl.handle.net/20.500.11831/5341 |
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