Summary
International Symposium on Antennas and Propagation
2011
Session Number:FrA4
Session:
Number:FrA4-4
Dispersion-Compensation Technique for Log-Periodic Antennas using C-section All-Pass Dispersive Delay Structures
Shulabh Gupta, Christophe Caloz,
pp.-
Publication Date:2011/10/25
Online ISSN:2188-5079
Summary:
A general technique to compensate for pulse distortion induced in log-periodic antennas, due to their frequency dispersive response, is presented and demonstrated by full-wave simulations for the case of log-periodic dipole array (LPDA). A C-section based all-pass dispersive delay structure (DDS) exhibiting a dispersion profile opposite to that of an LPDA is used as a predistorter before the antenna. A faithful reconstruction of the pulse is demonstrated using timedomain simulations.