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Export Reference (APA) 
Costa, J. R., Fernandes, C. A. & Silveirinha, M. G. (2008). Evaluation of a double-shell integrated scanning lens antenna. IEEE Antennas and Wireless Propagation Letters. 7 (1), 781-784
Export Reference (IEEE) 
J. M. Costa et al.,  "Evaluation of a double-shell integrated scanning lens antenna", in IEEE Antennas and Wireless Propagation Letters, vol. 7, no. 1, pp. 781-784, 2008
Export BibTeX 
@article{costa2008_1764921682169,
	author = "Costa, J. R. and Fernandes, C. A. and Silveirinha, M. G.",
	title = "Evaluation of a double-shell integrated scanning lens antenna",
	journal = "IEEE Antennas and Wireless Propagation Letters",
	year = "2008",
	volume = "7",
	number = "1",
	doi = "10.1109/LAWP.2008.2008403",
	pages = "781-784",
	url = "http://www.it.pt/papjourn_abs_p.asp?ID_PaperJournal=3221&id=1"
}
Export RIS 
TY  - JOUR
TI  - Evaluation of a double-shell integrated scanning lens antenna
T2  - IEEE Antennas and Wireless Propagation Letters
VL  - 7
IS  - 1
AU  - Costa, J. R.
AU  - Fernandes, C. A.
AU  - Silveirinha, M. G.
PY  - 2008
SP  - 781-784
SN  - 1536-1225
DO  - 10.1109/LAWP.2008.2008403
UR  - http://www.it.pt/papjourn_abs_p.asp?ID_PaperJournal=3221&id=1
AB  - This paper presents the design and evaluation of a high dielectric constant double-material integrated lens antenna for multi-beam or scanning applications. The lens is formed by two shaped embedded shells of different material permittivity to enhance both power transmission across the lens interfaces and the lens scanning characteristics over a broad frequency range, when the feeds are integrated at the lens base. Design is based on Geometrical Optics formulation and the lens performance is evaluated using the classic hybrid Geometrical Optics / Physical Optics approach (GO/PO). The proposed lens concept is experimentally validated with a fabricated MACOR/Acrylic prototype, showing less than 1 dB scan loss up to ±20º with Gaussissity better than 95% over 40% frequency band at millimeter-waves
ER  -