Analytical synthesis technique for linear uniform?amplitude sparse arrays

Analytical synthesis technique for linear uniform?amplitude sparse arrays

Caratelli, D.
Viganó, M.C.

Electrical Engineering, Mathematics and Computer Science

Telecommunications

2011-07-21

A novel analytical approach to the synthesis of linear sparse arrays with uniform?amplitude excitation is presented and thoroughly discussed in this paper. The proposed technique, based on the auxiliary array factor concept, is aimed at the deterministic determination of the optimal array element density and excitation phase tapering distributions useful to mimic a desired radiation pattern. In particular, the developed antenna placement method does not require any iterative or stochastic optimization procedure, resulting in a dramatic reduction of the antenna design times (typically on the order of a few seconds). Antenna mutual coupling is not taken into account within the developed methodology; hence, to assess the sensitivity of the design procedure to such nonideality, a dedicated numerical investigation has been carried out by using a rigorous full?wave electromagnetic field prediction technique. The obtained results prove the effectiveness and the versatility of the proposed array synthesis approach even in operative scenarios where a significant deviation from desired antenna operation is observed.

array synthesis
electromagnetics
sparse antenna array

http://resolver.tudelft.nl/uuid:1c7b72ae-a29b-497b-80fc-013f21a63c5b

https://doi.org/10.1029/2010RS004522

American Geophysical Union

2012-01-21

0048-6604

Radio Science, 46, 2011

Institutional Repository

journal article

(c) 2011 American Geophysical Union