Title :
Characteristics of infinite arrays of subarrayed microstrip antennas
Author_Institution :
Dept. of Electr. & Comput. Eng., Massachusetts Univ., Amherst, MA, USA
Abstract :
The author presents an analysis of infinite arrays composed of arbitrary subarrays of microstrip antenna elements and presents results of the application of this theory to several cases of practical interest. A full-wave moment method solution is used, which includes mutual coupling between elements in the subarray as well as the coupling between subarrays. Examples include the use of rectangular subarrays where all subarray elements are fed in phase, subarrays with parasitic elements, synchronous subarrays for generating circular polarization, and hexagonal subarrays. One particularly interesting result is that scan blindness can be eliminated by subarraying, at the expense of a reduced scan range. Other results show the amount of power lost to grating lobes as a result of subarraying, and the axial ratio for the synchronous subarray case.<>
Keywords :
antenna theory; microstrip antennas; microwave antenna arrays; axial ratio; circular polarization; full-wave moment method solution; grating lobes; hexagonal subarrays; infinite arrays; microstrip antenna elements; mutual coupling; parasitic elements; rectangular subarrays; scan range; subarray elements; subarrayed microstrip antennas; synchronous subarrays; Antennas and propagation; Blindness; Feeds; Gratings; Impedance; Microstrip antenna arrays; Microstrip antennas; Mutual coupling; Polarization; Synchronous generators;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1992. AP-S. 1992 Digest. Held in Conjuction with: URSI Radio Science Meeting and Nuclear EMP Meeting., IEEE
Conference_Location :
Chicago, IL, USA
Print_ISBN :
0-7803-0730-5
DOI :
10.1109/APS.1992.221977
