학술논문
An Antenna Characterization Demo System Using an RFID Hemispherical Dome [Education Corner]
Document Type
Periodical
Author
Source
IEEE Antennas and Propagation Magazine IEEE Antennas Propag. Mag. Antennas and Propagation Magazine, IEEE. 62(3):107-123 Jun, 2020
Subject
Language
ISSN
1045-9243
1558-4143
1558-4143
Abstract
Antenna measurement is crucial for characterizing the performance of an antenna. This article proposes a measurement technique that can be used for demo purposes in a class or laboratory for characterizing ultrahigh frequency (UHF) antennas. This approach measures the antenna under test (AUT) semispherical pattern simultaneously without any mechanical rotation as commonly applied. The measured data are then processed using a laptop connected to a radio-frequency identification (RFID) reader (transceiver) to identify various antenna properties. The setup limitations, considerations, and measurement demonstration are presented in detail. The system was successful in characterizing several antenna properties, including antenna polarization, frequency of operation, and efficiency, as well as constructing a 2D and full 3D radiation pattern for different test antennas. The in-class measurements were verified with simulations and anechoic chamber measurement data.