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2020-10-26
Low RCS Microstrip Patch Array with Hybrid High Impedance Surface Based Ground Plane
By
Progress In Electromagnetics Research Letters, Vol. 94, 75-84, 2020
Abstract
For a radiating structure such as dipole/patch array mounted on an aerospace platform, the radiation mode radar cross section (RCS) plays a significant role compared to the structural mode RCS. Thus the estimation and control of array RCS without degrading its radiating characteristics poses a challenge for an antenna engineer. In this paper, a novel design of a low profile 4-element patch array with hybrid HIS-based ground plane is presented to demonstrate both in-band and out-of-band structural RCS reductions. A significant broadband reduction in structural RCS has been achieved from 1 GHz to 80 GHz. The radiation mode RCS of the patch array is computed and controlled through optimized design parameters without degrading the radiation characteristics. The computed array RCS shows that even radiation mode RCS can be reduced except in operating frequency range.
Citation
Avinash Singh, and Hema Singh, "Low RCS Microstrip Patch Array with Hybrid High Impedance Surface Based Ground Plane," Progress In Electromagnetics Research Letters, Vol. 94, 75-84, 2020.
doi:10.2528/PIERL20072704
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