학술논문

Comments on “Transducer and Radiation Efficiency Figures of a Multiport Antenna Array”
Document Type
Periodical
Author
Source
IEEE Transactions on Antennas and Propagation IEEE Trans. Antennas Propagat. Antennas and Propagation, IEEE Transactions on. 72(1):1075-1077 Jan, 2024
Subject
Fields, Waves and Electromagnetics
Aerospace
Transportation
Components, Circuits, Devices and Systems
Antenna arrays
Impedance
Transducers
Antennas
Reflection coefficient
Linear systems
Scattering
Maximum power transfer theorem (MPTT)
multiport network
phased array
radiation efficiency
total active reflection coefficient (TARC)
Language
ISSN
0018-926X
1558-2221
Abstract
This commentary aims to explicate the veracity of the assertions posited by Capek and Jelinek in their article titled “Transducer and Radiation Efficiency Figures of a Multiport Antenna Array.” According to the authors, it is not feasible to employ the total active reflection coefficient (TARC) to determine the transducer and radiation efficiency figures they propose, in most instances. Our findings indicate that the TARC has already integrated the suggested figures, thereby obviating the need for further computation. The findings of our mathematical inquiry indicate that the assertion made by the authors is erroneous. We demonstrate the matching technique for a highly coupled asymmetric three-element dipole antenna array and show that the TARC for the worst case scenario is smaller than both conjugate and 50- $\Omega $ matchings.