Summary
International Symposium on Antennas and Propagation
2012
Session Number:3E2
Session:
Number:3E2-2
Advanced Wheeler Cap Method for Measuring the Antenna Efficiency
Chihyun Cho,
pp.-
Publication Date:2012/10/29
Online ISSN:2188-5079
Summary:
In this paper, we proposed the advanced Wheeler cap method based on the equivalent circuit model. We also proposed the high-order transformer circuit for an equivalent circuit model and the methodology to determine initial values for the heuristic optimization. To confirm the proposed method, we measured the efficiency of a quad-band microstrip antenna, and this showed a good agreement with the simulation, while the conventional Wheeler cap showed an unreliable measurement result.