Trade-off Between Antenna Efficiency and Q-Factor
Applied Physics
2019-03-07 v2
Abstract
The trade-off between radiation efficiency and antenna bandwidth, expressed in terms of Q-factor, for small antennas is formulated as a multi-objective optimization problem in current distributions of predefined support. Variants on the problem are constructed to demonstrate the consequences of requiring a self-resonant current as opposed to one tuned by an external reactance. The resulting Pareto-optimal sets reveal the relative cost of valuing low radiation Q-factor over high efficiency, the cost in efficiency to require a self-resonant current, the effects of lossy parasitic loading, and other insights.
Cite
@article{arxiv.1802.01476,
title = {Trade-off Between Antenna Efficiency and Q-Factor},
author = {Mats Gustafsson and Miloslav Capek and Kurt Schab},
journal= {arXiv preprint arXiv:1802.01476},
year = {2019}
}
Comments
11 pages, 9 figures