Ymm. Antar et al., MODIFIED WAVE-GUIDE MODEL (MWGM) FOR RECTANGULAR DIELECTRIC RESONATORANTENNA (DRA), Microwave and optical technology letters, 19(2), 1998, pp. 158-160
Based on the concept of effective dimensions, a modification to the co
nventional waveguide model (CWGM), usually used to predict the resonan
t frequency of rectangular DRA, is introduced. Compared with the exper
imental results, it is found that this newly introduced MWGM yields mo
re accurate results for the resonant frequency than the CWGM. Accuracy
of the results is also checked by comparison with numerically calcula
ted values using a TLM-based commercial software. Ir is also found tha
t the MWGM not only yields accurate values, but also results in consid
erable computation time savings. (C) 1998 John Whey & Sons, Inc.