Title :
Feeding structure contribution to radiation by patch antennas with rectangular boundaries
Author :
Wu, Shih-Chang ; Alexopoulos, Nicolaos G. ; Fordham, Owen
Author_Institution :
Dept. of Electr. & Comput. Eng., New Jersey Inst. of Technol., Newark, NJ, USA
fDate :
10/1/1992 12:00:00 AM
Abstract :
A combination of piecewise sinusoidal-pulse functions and semi-infinite microstrip current expansion functions is 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 line-reflect-line de-embedding 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
Keywords :
antenna feeders; antenna radiation patterns; antenna theory; microstrip antennas; numerical analysis; spectral-domain analysis; arbitrary rectangular boundaries; edge-fed rectangular patches; feed line current; full-wave spectral-domain method; input impedance; inset fed patches; line-reflect-line de-embedding algorithm; microstrip antennas; numerical efficiency; piecewise sinusoidal-pulse functions; radiation patterns; radiation properties; semi-infinite microstrip current expansion functions; Antenna feeds; Antenna measurements; Antenna radiation patterns; Current distribution; Dielectric substrates; Impedance measurement; Integral equations; Microstrip antennas; Patch antennas; Transmission line measurements;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
