Modular Subarrayed Phased-Array Design by Means of Iterative Convex Relaxation Optimization

Dong, Wei; Xu, Zhiwei; Liu, Xinghua; Wang, Luo-Sheng-Bin

doi:10.1109/lawp.2019.2893946

Cited by 39 publications

(13 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Moreover, the modularity is advantageous in phased array antenna manufacturing since it enables the implementation of light and low profile structures [17], an easy maintenance, and integrated cooling systems [18]. The constrained clustering is also referred to as array tiling [14], tiles (i.e., physically contiguous clusters of elements) with the same shape (i.e., single-shape tiling [16,[19][20][21][22][23][24][25]) or a limited number of shapes (i.e., multi-shape tiling [12-14, 26, 27]), being used to cover the whole antenna aperture without overlapping and any gaps or leaving the minimum one. As a matter of fact, while a suitable shape/dimension of the antenna aperture is necessary to comply with the design constraints, modern radar/communication applications usually require high directive beams, which are admissible only when assuring the entire aperture overlay.…”

Section: Introductionmentioning

confidence: 99%

Mask-Constrained Synthesis of Domino-Like Tiled Phased Arrays

Tosi¹,

Benoni²

2022

PIER B

View full text Add to dashboard Cite

In this work, the mask-constrained synthesis of domino-tiled phased arrays is addressed. By exploiting tiling theorems and theory, optimal and sub-optimal methods for the synthesis of domino arrangements and the corresponding excitations that minimize the deviation of the radiation pattern from a user-defined power mask are presented. A set of numerical examples, carried out with full-wave simulators and concerned with different aperture sizes and various mask shapes, is reported to assess the effectiveness, limitations, and ranges of computationally-admissible applicability of the proposed methods.

show abstract

Section: Introductionmentioning

confidence: 99%

Mask-Constrained Synthesis of Domino-Like Tiled Phased Arrays

Tosi¹,

Benoni²

2022

PIER B

View full text Add to dashboard Cite

show abstract

“…In this framework, innovative unconventional array architectures have been recently proposed to implement better cost-performance trade-off solutions [ 12 ]. For instance, clustered/sub-arrayed PAs have been considered for reducing the number of control points by gathering multiple elements over a single input-output port to minimize the production and maintenance costs [ 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 ]. The main issue when resorting to clustered arrays is the unavoidable presence of undesired secondary lobes (i.e., the quantization lobes [ 21 , 22 ]).…”

Section: Introductionmentioning

confidence: 99%

“…The main issue when resorting to clustered arrays is the unavoidable presence of undesired secondary lobes (i.e., the quantization lobes [ 21 , 22 ]). To cope with this drawback, irregular arrangements of the array clusters have been exploited and the optimization of the sub-array configurations (i.e., sub-array position/size/shapes and excitations) has been carried out by means of various strategies [ 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 ].…”

Section: Introductionmentioning

confidence: 99%

“Conical” Frustum Multi-Beam Phased Arrays for Air Traffic Control Radars

Rocca

Anselmi

Hannan

et al. 2022

Sensors

View full text Add to dashboard Cite

The design of conical frustum phased array antennas for air traffic control (ATC) radar systems is addressed. The array architecture, which is controlled by a fully digital beam-forming (DBF) network, is composed by a set of equal vertical modules. Each module consists of a linear sparse array that generates on receive multiple instantaneous beams pointing along different directions in elevation. To reach the best trade-off between the antenna complexity (i.e., minimum number of array elements and/or radio frequency components) and radiation performance (i.e., matching a set of reference patterns), the synthesis problem is formulated in the Compressive Sampling (CS) framework. Then, the positions of the array elements and the complex excitations for generating each single beam are jointly determined through a customized version of the Bayesian CS (BCS) tool. Representative numerical results, concerned with ideal as well as real antenna models, are reported both to validate the proposed design strategy and to assess the effectiveness of the synthesized modular sparse array architecture also in comparison with conventional arrays with uniformly-spaced elements.

show abstract

“…Another research trend concentrates on the array-driven design [8]- [16] in which the goal is to optimize array-level properties such as directivity, array pattern shape, and sidelobe levels (SLL). There are numerous methods for optimizing these properties.…”

mentioning

confidence: 99%

“…There are numerous methods for optimizing these properties. For example, methods to design sub-arrays have been proposed [8], [9]. These methods first divide array elements into groups, and then, they aim to find optimal groups, and array weights.…”

mentioning

confidence: 99%

A Method to Co-Design Antenna Element and Array Patterns

et al. 2022

View full text Add to dashboard Cite

In this paper, we develop a novel method to design the elements of an antenna array and their feed weights simultaneously. The method is based on formulating the design problem as a nonlinear multi-objective optimization model that estimates the realized gain at certain angles as a function of the element-level port signals and impedances, and the array-level weights for the elements. This enables utilization of genetic algorithms to find optimal signals, impedances, and weights for given steering range requirements. As an example, an array consisting of multi-port antenna elements is simulated and modeled with its impedance and radiation matrices. These matrices are used in the calculation of realized gain with the model. The model is then applied as part of the method to find as wide scanning range for the array as possible. The antenna elements are designed such that the multi-port system can be reduced to a single feed with physically realizable matching components and a matching network. The array designed with the proposed method is also compared to a reference antenna array of the same size. Both the simulations and measurements verify that the method can provide substantial improvements in the scanning range as compared to the reference.INDEX TERMS Antenna arrays, antenna radiation patterns, Pareto optimization methods, phased arrays.

show abstract

Modular Subarrayed Phased-Array Design by Means of Iterative Convex Relaxation Optimization

Cited by 39 publications

References 14 publications

Mask-Constrained Synthesis of Domino-Like Tiled Phased Arrays

Mask-Constrained Synthesis of Domino-Like Tiled Phased Arrays

“Conical” Frustum Multi-Beam Phased Arrays for Air Traffic Control Radars

A Method to Co-Design Antenna Element and Array Patterns

Contact Info

Product

Resources

About