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A novel approach for the analysis and optimal design of a spherical lens antenna (SLA) with practical feed model (PFM) is proposed. The vector spherical wave function expansions (VSWE) combined with differential evolution (DE) algorithm is adopted for the optimal design of SLAs. The near-field aperture distributions of the dielectric loaded horn feed (Ku band) and the corrugated horn feed (Ka band) were obtained using the full wave simulation and were then taken into account in the DE optimization. The radiation characteristics of an optimized 650mm 2-layer SLA are presented and compared to simulation results. Good agreement is obtained. By substituting these optimal structural parameters of SLA into the corresponding hemispherical lens antenna (HLA), the gain of HLA can be readily predicted.
Published in:
Antennas and Propagation (APSURSI), 2011 IEEE International Symposium on
Date of Conference: 3-8 July 2011
- Page(s):
- 926 - 929
- ISSN :
- 1522-3965
- Print ISBN:
- 978-1-4244-9562-7
- INSPEC Accession Number:
- 12214300
- Conference Location :
- Spokane, WA
- Digital Object Identifier :
- 10.1109/APS.2011.5996428
- Product Type:
- Conference Publications
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