Vol. 104

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2020-07-23

Design of Airborne Radome Using Novel Temperature Dependent Electromagnetic Modeling

By Aparna Parameswaran and Hrishikesh Sonalikar
Progress In Electromagnetics Research C, Vol. 104, 37-52, 2020
doi:10.2528/PIERC20041704

Abstract

In this paper, a novel temperature dependent electromagnetic modeling for the design of airborne radome is presented. A smooth spatial temperature distribution on the radome surface is modeled using a piecewise cubic hermite interpolating polynomial as well as piecewise linear interpolation. The temperature gradient across the radome wall is modeled using the inhomogeneous planar layer. The performance of a radome is computed using the 3D ray tracing method in conjunction with aperture integration. A unique radome wall configuration is obtained for each ray for accurate representation of a hot radome. A streamlined radome designed using the proposed model shows a significant performance improvement over the radome designed at the average temperature. The designed radome has the minimum insertion loss of 0.015 dB and the maximum boresight error of 1.8 mrad. The proposed method can be easily used with the experimentally obtained temperature distribution to predict the changes in radome performance in changing hypersonic environment.

Citation


Aparna Parameswaran and Hrishikesh Sonalikar, "Design of Airborne Radome Using Novel Temperature Dependent Electromagnetic Modeling," Progress In Electromagnetics Research C, Vol. 104, 37-52, 2020.
doi:10.2528/PIERC20041704
http://jpier.org/PIERC/pier.php?paper=20041704

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