학술논문
Power Handling and Spectral Density Considerations in the Design of Reflectarray Antennas for Wireless High-Power Transfer Applications
Document Type
Periodical
Author
Source
IEEE Journal of Radio Frequency Identification IEEE J. Radio Freq. Identif. Radio Frequency Identification, IEEE Journal of. 6:505-514 2022
Subject
Language
ISSN
2469-7281
2469-729X
2469-729X
Abstract
Power handling and power spectral density (EIRP-SD) considerations in the design of reflectarray antennas are outlined for wireless high power transfer applications. The impact of fast Fourier Transform (FFT) based pattern analysis methods is considered, including the accuracy of EIRP-SD calculations for regulatory considerations, as well as how to compute those limits. A hybrid pattern analysis appropriate for the practical design of high EIRP-SD reflectarray systems is proposed. To illustrate these concepts, a reflectarray is designed and modeled with this method and the results exhibit agreement with predicted patterns from a full-wave simulation while showing dramatic simulation time improvement. Finally, the power handling, EIRP-SD and gain characteristics are related to each other.