Answers are grounded in this paper and cite their sources.
A new wideband circular high-impedance surface (HIS) is proposed. Two models are developed to analyze the reflection characteristics of the proposed HIS. It is also shown through simulations that a circular HIS as a ground plane for loop antennas is superior to a rectangular HIS ground plane. The circular HIS was fabricated and a loop antenna was placed above it. Measurements were then performed and their results were compared with simulations. An excellent agreement was indicated.
No takes yet. Share an insight, caveat, or question.
Amiri et al. (2015) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: