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2023-01-27
Efficient Computation of Sideband Power Losses in Pulse-Shifted Non-Uniform Time-Modulated Array with Arbitrary Element Pattern
By
Progress In Electromagnetics Research B, Vol. 98, 59-75, 2023
Abstract
This paper presents the mathematical formulation for the generalized closed-form expressions to calculate sideband power (PSR) of a nonuniform period time modulated array (NTMA) antenna with volumetric geometry by using pulse shifting strategy. For the arbitrary array geometry, the generalized expression of PSR is obtained by considering the universal omnidirectional element pattern in the form sinaθ|cosθ|b, a > -1, b > -1/2. Then, corresponding to different array structures such as linear, planar, and volumetric ones, the derived expression is simplified for different element patterns with possible combination of `a' and `b'. Through representative numerical results it is demonstrated that the obtained simplified expressions without hypergeometric function are useful to accurately calculate the amount of power losses due to sideband radiations with significantly less time than the conventional numerical integration (NI) method.
Citation
Sujoy Mandal, and Sujit Kumar Mandal, "Efficient Computation of Sideband Power Losses in Pulse-Shifted Non-Uniform Time-Modulated Array with Arbitrary Element Pattern," Progress In Electromagnetics Research B, Vol. 98, 59-75, 2023.
doi:10.2528/PIERB22091106
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