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Conductive material distribution optimization for ultrawideband antennas
Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.ORCID-id: 0000-0002-1318-7519
Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.
Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för datavetenskap.ORCID-id: 0000-0003-0473-3263
2013 (engelsk)Inngår i: Proceedings 11th International Conference on Mathematical and Numerical Aspects of Waves: Waves 2013, Tunis: ENIT-LAMSIN , 2013, s. 171-172Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

An Ultrawideband (UWB) planar monopole an-tenna is designed using the material distribution ap-proach to topology optimization. The design variablesare the local conductivity values in a 75 × 75 mm areawhere the radiating element can be located. Theantenna is optimized for maximum reception, in anattached coaxial cable, of incoming plane waves. Thewave propagation is modeled using the time domain3D Maxwell equations discretized using FDTD, andthe optimization is carried out using a gradient-basedoptimization method, in which the derivatives aresupplied through solving corresponding adjoint equa-tions. The outer dimensions of the optimized antennais 75 × 60 mm, and its reflection coefficient |S11 |,with respect to a feeding signal in the coaxial cable,stays below −10 dB throughout the frequency band1.2–9.7 GHz.

sted, utgiver, år, opplag, sider
Tunis: ENIT-LAMSIN , 2013. s. 171-172
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URN: urn:nbn:se:umu:diva-87770OAI: oai:DiVA.org:umu-87770DiVA, id: diva2:711090
Konferanse
The 11th International Conference on Mathematical and Numerical Aspets of Waves, June 3-7 2013, Gammarth, Tunisia
Tilgjengelig fra: 2014-04-09 Laget: 2014-04-09 Sist oppdatert: 2018-06-08bibliografisk kontrollert

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http://www.lamsin.tn/waves13/proceedings.pdf

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Hassan, EmadeldeenWadbro, EddieBerggren, Martin

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