A circular loop antenna is often numerically modeled using a regular polygon. This approach is simple and robust, yet it alters the circumference of the loop and may thus shift the resonance frequency in the numerical model. This letter introduces a simple analytical formula for predicting and relating the accuracy of resonance frequency determination to the number of segments used. The result of testing on commercial software WIPL-D showed an excellent match between the prediction and numerically derived results. It is expected that the approach can be extended onto other structures with curvatures.
Reference:
Lysko, A.A. 2012. On equivalent radius of curvature for PWL geometrical modeling a loop antenna. IEEE Antennas and Wireless Propagation Letters, vol. 11, pp. 1323-1325, DOI 10.1109/LAWP.2012.2226230
Lysko, A. A. (2012). On equivalent radius of curvature for PWL geometrical modeling a loop antenna. http://hdl.handle.net/10204/6494
Lysko, Albert A "On equivalent radius of curvature for PWL geometrical modeling a loop antenna." (2012) http://hdl.handle.net/10204/6494
Lysko AA. On equivalent radius of curvature for PWL geometrical modeling a loop antenna. 2012; http://hdl.handle.net/10204/6494.
Copyright: 2012 IEEE. This is the post-print version of the work. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works. Published in IEEE Antennas and Wireless Propagation Letters, vol. 11, pp. 1323-1325, DOI 10.1109/LAWP.2012.2226230
