Space tapaering of linear and planar arrays

Willey, Ronald R.

doi:10.1109/tap.1962.1137887

Cited by 165 publications

(80 citation statements)

References 6 publications

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“…In fact, a proper fitting of the cumulative distributions corresponds to an L 2 weighted fitting of the corresponding plane wave spectra [15]. This result can be profitably exploited to devise a very simple deterministic procedure for the synthesis of thinned arrays.…”

Section: The Basic Idea and The Corresponding Synthesis Approachmentioning

confidence: 99%

A Deterministic Approach to the Synthesis of Pencil Beams Through Planar Thinned Arrays

Bucci¹,

Isernia²,

Morabito³

2010

PIER

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Abstract-This paper presents a simple and innovative deterministic approach to the synthesis of uniformly excited thinned arrays able to fulfill constraints concerning both the sidelobe level and the value of the radiated far field (and/or of the directivity) in a set of given directions. Starting from a reference regular (periodic or even aperiodic) lattice and from an optimal continuous reference source fulfilling at best the required specifications, the proposed approach finds out both the number and the location of the isophoric (i.e., equi-amplitude) radiating elements to withdraw in a fast and effective fashion. In fact, it is based on a deterministic best-fitting procedure which takes inspiration from existing density taper techniques. Examples are provided with reference to the synthesis of large circular arrays and confirm the interest of the proposed procedure.

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Section: The Basic Idea and The Corresponding Synthesis Approachmentioning

confidence: 99%

A Deterministic Approach to the Synthesis of Pencil Beams Through Planar Thinned Arrays

Bucci¹,

Isernia²,

Morabito³

2010

PIER

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“…A high number of degrees of freedom could be achieved by involving a high number of radiating elements, a high number of control parameters per element [8], including their positions [9][10][11][13][14][15][16], and a purposely shaped reflecting surface [17,23], possibly conformed around a specific shape in order to simplify deployability and installation [24].…”

Section: Introductionmentioning

confidence: 99%

“…tapering" or an array thinning, providing further degrees of freedom to the synthesis and thus helping satisfying the design specifications, have been reported since much time [9][10][11][12]. Opposite to this, in the framework of reflectarrays, and essentially due to computational issues, the antenna synthesis community has up to now mainly considered periodic lattices to enable the use of the "local periodicity" approximation [27] which, apart from possibly leading to locally significant errors, does not allow using at the best all the available degrees of freedom.…”

Section: Introductionmentioning

confidence: 99%

Phase-Only Synthesis of Flat Aperiodic Reflectarrays

Capozzoli¹,

Curcio²,

Liseno³

et al. 2013

PIER

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Abstract-A phase-only power pattern synthesis technique for flat (aperiodic) microstrip reflectarrays with elements arranged on a nonregular lattice is presented. The approach mitigates the typical design issues of reflectarray antennas related to the computational burden and to the possible occurrence of suboptimal solutions which are here even more significant due to the non-regular element lattice. This is done by a convenient two-stage procedure for choosing the starting point of the iterations and by proper representations of the unknowns of the problem. Design constraints on the element positions are also imposed to avoid overlapping as well as too large spacings. The algorithm, accelerated by parallel programming on Graphics Processing Units, has been analyzed against the cases of a pencil-beam and of a shapedbeam involving a typical South America coverage. In order to properly characterize the performance of the synthesis algorithm, it has been applied also to the design of reflectarrays with elements located on a non-regular lattice. The results show that in the case of non-regular lattice better directivities, better coverage behavior and better sidelobe levels are achievable as compared to reflectarrays characterized by a regular lattice.

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“…Although the synthesis of nonuniformly spaced arrays with fixed excitations has received a lot of attention these last 50 years [3]- [5], this problem remains challenging. The far field radiated by the array does indeed not depend linearly on the unknowns of the problem (the element locations), which makes the synthesis problem difficult to solve in an optimal way.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Uniform Amplitude Focused Beam Arrays

Fuchs

Skrivervik

Mosig

2012

Antennas Wirel. Propag. Lett.

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Abstract-An iterative procedure for the synthesis of uniform amplitude focused beam arrays is presented. Specifically, the goal is to optimize the locations of a fixed number of array elements with known excitations in order to synthesize narrow-beam low-sidelobe patterns. Any fixed elements excitations can be handled, although uniform amplitude and equiphase excitations are aimed because of their practical interest. Moreover, the method can be applied to both linear and planar arrays, and there is no restriction regarding the element patterns. On top of being easy to implement, the proposed procedure leads to solutions that either equal or outperform the ones found by previous approaches in various cases of interest.

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Space tapaering of linear and planar arrays

Cited by 165 publications

References 6 publications

A Deterministic Approach to the Synthesis of Pencil Beams Through Planar Thinned Arrays

A Deterministic Approach to the Synthesis of Pencil Beams Through Planar Thinned Arrays

Phase-Only Synthesis of Flat Aperiodic Reflectarrays

Synthesis of Uniform Amplitude Focused Beam Arrays

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