Feeding Structure Contribution to Radiation by Patch Antennas with Rectangular Boundaries
S.-C. Wu, N.G. Alexopoulos, and O. Fordham
A combination of piecewise sinusoidal-pulse functions (PWS-P) and semi-infinite microstrip (SIM) current expansion functions are used in the full-wave spectral-domain method to analyze microstrip antennas with arbitrary rectangular boundaries. Radiation properties are formulated in the spectral domain to achieve high numerical efficiency. Two types of microstrip antennas, edge-fed rectangular and inset fed patches, have been analyzed and measured. A LRL de-emhedding algorithm has been implemented to measure the input impedance of both antennas. The results show good agreement between measurement and calculated data. The radiation patterns from the edge-fed rectangular patch are measured and are compared with the theoretical data. Results show that the current on the feed line can disturb the antenna radiation pattern.
IEEE Transactions on Antennas and Propagation
1992
October
40
10
1245 - 1249
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