Rocca, Paolo and Morabito, Andrea and Isernia, Tommaso and Massa, Andrea (2011) Synthesis of Arbitrary Sidelobes Sum and Difference Patterns with Common Excitation Weights. UNSPECIFIED.
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Abstract
The synthesis of sum and difference patterns is a canonical problem widely dealt with by researchers working on antenna array synthesis. As a matter of fact, they are used as transmitting/receiving devices for search‐and‐track systems (e.g., monopulse radars [1]). In this framework, several procedures have been proposed to reduce the complexity of the beam forming network aimed at generating at least a couple of radiation patterns. Among them, the generation of an optimal sum pattern and a difference one has been carried out by means of a sub‐arraying strategy [2,3]. The simplification of the hardware complexity has also been addressed by sharing some excitations for the sum and difference channels [4]. Recently, the synthesis of low‐sidelobe sum and difference patterns with a common aperture has been carried out by perturbing the roots of the Bayliss distribution to match as much as possible a given Taylor distribution [5]. The discrete linear arrays have been successively obtained by sampling the resulting continuous apertures. In this work, the same array synthesis problem dealt with in [5] is addressed, and an innovative approach based on a deterministic optimization strategy is presented wherein the problem is formulated as the minimization of a linear function over a convex set. Taking advantage from the approaches proposed in [6] and [7] for the optimal synthesis of sum and difference patterns respectively, the proposed method allows one to synthesize patterns with arbitrary sidelobes (unlike [5]).
Item Type: | Departmental Technical Report |
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Department or Research center: | Information Engineering and Computer Science |
Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK7885 Computer Engineering Q Science > QC Physics (General) > QC661 Electromagnetic Theory Q Science > QC Physics (General) > QC760 Electromagnetism |
Additional Information: | This version is a pre-print of the final version available at IEEE. |
Report Number: | DISI-11-165 |
Repository staff approval on: | 04 Jul 2011 |
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