In this letter, we present an efficient technique based on the extension of the adaptive integral method (AIM) that allows the full-wave analysis of electrically large multilayered printed arrays that have one or more planar metallizations and vertical conductors. The array patches can be of arbitrary shape and orientation and are modeled with subdomain triangular basis functions. This method makes use of a 2D-FTT/CG scheme, reducing the CPU time per iteration to O( log 2 ) and the memory requirement to O( ).
The Microwaves and Radar Institute at the German Aerospace Center operate an airborne multi-frequency, polarimetric, imaging SAR system. The F-SAR sensor is equipped with a variety of different antennas, based on patch technology. A new antenna element is developed for the P-Band frequency range from 400 to 470 MHz. Due to the requirements of the aircraft the size of the antenna array and therefore of each single element, is reduced to a minimum. A cavity backed, capacitively coupled stacked patch element is designed and presented in this paper.Index Terms-patch antenna, SAR sensor, cavity backed, pband.
This paper addresses the design of a broadband reflectarray which takes advantage of the introduction of a suitable non-conventional shape radiating element to assure a large gain bandwidth. The element shape presents sufficient degrees of freedom to compensate the frequency variation of the differential spatial phase delay even when single-layer printed patches are employed
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