The Radiation Resistance of Folded Antennas
This technical paper highlights the ambiguity in the antenna technical literature regarding the radiation resistance of folded antennas.
For example, the half-wave folded dipole (or quarter-wave folded monopole), electrically small self-resonant folded antennas and multiple-tuned antennas.
The feed-point impedance of a folded antenna is increased over that of a single-element antenna but does this increase equate to an increase in the antenna’s radiation resistance or does the radiation resistance remain effectively the same and the increase in feed-point impedance is due to transformer action?
Through theoretical analysis and numerical simulations, this study shows that the radiation resistance of a folded antenna is effectively the same as its single-element counterpart.
This technical paper serves as an important point of clarification in the field of folded antennas. It also showcases Plextek’s expertise in antenna theory and technologies.
Practitioners in the antenna design field will find valuable information in this paper, contributing to a deeper understanding of folded antennas.
M. C. Walden, “On the Radiation Resistance of Folded Antennas”, 18th European Conference on Antennas and Propagation, EuCAP 2024, Glasgow, UK, 17–22 March 2024.
doi: 10.23919/EuCAP60739.2024.10501407
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