@inproceedings{40ec698398a94f199c0ed83a815a50b1,
title = "Transverse permittivity gradient (TPG) superstrates or lens: a critical perspective",
abstract = "This paper presents a quantitative comparison of superstrates with transverse permittivity gradient (STPG) when used in RCAs, as compared to stand-alone lens configurations. RCAs with TPG superstrates are often compared with lens antennas, considering the apparent structural similarity between the two. However, these two classes of antennas present inherent differences in terms of characteristics as well as principle of operation. Detailed comparisons are carried out using full-wave simulations. It was found that nearly 50% reduction in 3dB bandwidth was observed when a TPG superstrate was used as a lens antenna, as opposed to in an RCA.",
keywords = "RCAs, Lens Antennas, High-Gain, Partially Reflecting Superstrate, TPG, EBG Resonator Antenna",
author = "Hashmi, {R. M.} and Baba, {A. A.} and Esselle, {K. P.}",
year = "2018",
doi = "10.1109/APUSNCURSINRSM.2018.8608499",
language = "English",
isbn = "9781538671030",
publisher = "Institute of Electrical and Electronics Engineers (IEEE)",
pages = "831--832",
booktitle = "2018 IEEE Antennas and Propagation Society International Symposium",
address = "United States",
note = "2018 IEEE Antennas and Propagation Society International Symposium and USNC/URSI National Radio Science Meeting, APSURSI 2018 ; Conference date: 08-07-2018 Through 13-07-2018",
}