Direct radiating array design via convex aperture synthesis, pareto front theory, and deterministic sampling [antenna designer's notebook]

Kaifas, Theodorοs N.

doi:10.1109/map.2014.6867693

Cited by 16 publications

(6 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Convex Aperture Synthesis (CAS) is applied next, [4]. Directivity constraints are considered as input while the output is the Current Density Distribution (CDD) of an aperture producing a far-field that at best fulfills those constraints.…”

Section: The Applied Algorithmmentioning

confidence: 99%

See 1 more Smart Citation

A software tool for satellite advanced multibeam aperiodic array synthesis

Kaifas

Babas

Toso

et al. 2016

2016 5th International Conference on Modern Circuits and Systems Technologies (MOCAST)

Self Cite

View full text Add to dashboard Cite

The problem of optimized multibeam array synthesis is common in Modern Satellite Communications. In this work a new software tool for ADvanced Aperiodic Multibeam Array Synthesis (ADAMAS) is presented. It is based on the combination of Convex Aperture Synthesis with Pareto Front theory resulting both in the minimization of the computation time and the reduction of the number of required elements and the size of the host area. The software can handle demanding cases such as global coverage from a GEO satellite.

show abstract

Section: The Applied Algorithmmentioning

confidence: 99%

“…In recent years, the Radiocommunications Laboratory (RCL) -AUTH has been carrying out research on this area [1]- [4].…”

Section: Introductionmentioning

confidence: 99%

A software tool for satellite advanced multibeam aperiodic array synthesis

Kaifas

Babas

Toso

et al. 2016

2016 5th International Conference on Modern Circuits and Systems Technologies (MOCAST)

Self Cite

View full text Add to dashboard Cite

show abstract

“…There are many methods to solve these problems. Analytical techniques are good at the synthesis of regular arrays, such as projection methods and the matrix method using near-field data [1][2][3][4][5]. To synthesize complex arrays, various types of optimization methods [6][7][8][9] and a method based on the least squares method (LSM) [10][11][12] have been developed.…”

Section: Introductionmentioning

confidence: 99%

Fast Arrays Synthesis Algorithem by the Matrix Method With Embedded Patterns of Standard Cell

Xu¹,

Yang²,

Li³

et al. 2019

PIER C

View full text Add to dashboard Cite

In this paper, a standard cell radiation pattern is selected to accelerate the synthesis of a large-scale arrays pattern. The radiation patterns distortion of each cell in array is transformed to the additive perturbation in the array manifold matrix of the antenna array, and the weighted total least squares method is developed to solve this matrix problem. The examples of several antenna arrays are presented to verify the method. Benefiting from the direct solution of matrix with the standard cell's radiation pattern, the method is low in computation cost and fast in speed.

show abstract

“…Indeed there are promising and innovative methods limited to one-dimension arrays and others that are based on iterative techniques and/or complex optimisation methods for planar arrays. Recently, the authors following a rigorous theoretical approach have introduced a clear and solid mathematical framework that provides closed-form analytical Pareto-front results for the synthesis of planar arrays [18,19]. Adopting this strategy various estimations on possible array layout solutions can be obtained.…”

Section: Introductionmentioning

confidence: 99%

“…Assuming a priori that the array is constituted by an assigned number of element types (for instance small, medium and large radiators), the identification of the most appropriate number and position of elements per type is not trivial and implies the implementation of new design algorithms. In [18,19] both the appropriate number and the element position/orientation have been provided. Indeed, in these publications various examples were given, but the achieved result was limited to sub-continental coverages.…”

Section: Introductionmentioning

confidence: 99%

Multibeam antennas for global satellite coverage: theory and design

Kaifas

Babas

Toso

et al. 2016

IET Microwaves, Antennas & Propagation

View full text Add to dashboard Cite

Today there is an increasing request for high‐throughput communication payloads in satellite communications. Capacity in the order of 100 Gbit/s is becoming available and further significant improvement is expected in the coming years. A key element in order to guarantee this high performance is constituted by the multibeam antennas, able to generate multiple narrowly focused spot beams with frequency and polarisation reuse. Direct radiating arrays are able to generate multibeam coverage with a single aperture with the possibility of reconfiguring the coverage and the power distribution among the beams. Sparse arrays permit to reduce the number of radiators and to increase the DC to RF power efficiency by exploiting a ‘space tapering’ instead of an ‘amplitude tapering’, typically adopted in periodic arrays to control the sidelobe level. In this study, a deterministic procedure for the design of large planar sparse arrays is extended to the case, where the antenna, from a geostationary satellite, has to generate a multibeam coverage on the full Earth. The synthesis procedure is presented and validated with several numerical examples illustrating the scanning losses, array pattern deformation during the scanning and grating lobe effects.

show abstract

Direct radiating array design via convex aperture synthesis, pareto front theory, and deterministic sampling [antenna designer's notebook]

Cited by 16 publications

References 34 publications

A software tool for satellite advanced multibeam aperiodic array synthesis

A software tool for satellite advanced multibeam aperiodic array synthesis

Fast Arrays Synthesis Algorithem by the Matrix Method With Embedded Patterns of Standard Cell

Multibeam antennas for global satellite coverage: theory and design

Contact Info

Product

Resources

About