Pattern Synthesis of Conformal Antenna Array by the Hybrid Genetic Algorithm

Xu, Zhenlong; Liang, Hong; Qi-zhong, Liu; Li, and Jian-Ying

doi:10.2528/pier07091901

Cited by 79 publications

(64 citation statements)

References 14 publications

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“…There are a wide variety of techniques that have been developed for the synthesis of linear and planar arrays . To complete this kind of optimization, global optimization methods are usually used, such as genetic algorithms (GA) [3][4][5], particle swarm optimization (PSO) [6,7] and differential evolution (DE) algorithm. A hybrid genetic algorithm is used to synthesize desired far-field radiation patterns of conformal antenna array [3].…”

Section: Introductionmentioning

confidence: 99%

“…To complete this kind of optimization, global optimization methods are usually used, such as genetic algorithms (GA) [3][4][5], particle swarm optimization (PSO) [6,7] and differential evolution (DE) algorithm. A hybrid genetic algorithm is used to synthesize desired far-field radiation patterns of conformal antenna array [3]. A comparison study between phase-only and amplitudephase synthesis of symmetric dual-pattern linear antenna arrays using floating-point or real-valued genetic algorithms is given in [4].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Pattern Synthesis of Concentric Circular Antenna Array by Nonlinear Least-Square Method

Guo¹,

Guo²,

Qu³

et al. 2013

PIER B

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Abstract-An improved nonlinear least-square method is presented in this paper. This method changes the traditional least-square method's shortness of being sensitive to its initial conditions. Pattern synthesis for concentric circular arrays using nonlinear least-square method is introduced. The excitation amplitudes and phases of the array elements are optimized. This method can make the design of the feeding network much easier because the excitation amplitudes of the elements placed on the same ring are equal. The number of parameters to be optimized is reduced which leads to a faster simulation speed and makes the simulation results much more accurate. Also, the cost of designing the feeding network is reduced. The simulation results show the good agreement between the synthesized and desired radiation pattern. Also, the peak side lobe level (PSLL) of the synthesized radiation pattern is quite low.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Pattern Synthesis of Concentric Circular Antenna Array by Nonlinear Least-Square Method

Guo¹,

Guo²,

Qu³

et al. 2013

PIER B

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show abstract

“…SLL(θ, ϕ) and SLL 0 represent respectively the obtained and desired the side-lobe level of each beam, and k 1 , k 2 are weighting coefficients to control the importance of the items described in the above equation. Appropriate weighting coefficients could make all the parameter of DBF array optimized [17][18][19][20][21]. Utilizing the 16 × 61 = 976 complex phase and amplitude excitation coefficients calculated by GA, the simulated radiation pattern of 16-beam DBF array is depicted in Fig.…”

Section: Radiation Pattern Synthesis Of Shamentioning

confidence: 99%

Development of 61-Channel Digital Beamforming (Dbf) Transmitter Array for Mobile Satellite Communication

Li¹,

Gong²,

Liu³

et al. 2009

PIER

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Abstract-An 61-channel digital beamforming transmitter array antenna used in mobile satellite communication is presented in this paper.It can steer 16 beams simultaneously. The interface, architecture and subunits are described in detail. Standard hexagonal array (SHA) and 61-channel RF front ends are designed. Genetic Algorithm is adopted to realize the pattern synthesis with mutiobjective optimization. The signal flow and hardware platform of the digital beamforming network are discussed, which can complete the high speed array signal processing with maximum throughput of 34.16 Gbps. A novel calibration scheme with high feasibility of project implementation is also proposed. The measurements of array antenna match well with simulation result, which validates the rationality and feasibility of the algorithms.

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“…Its advantages include dramatic reduction of aerodynamic drag and the weight of arrays, wide angle coverage of 360 • , space-saving, reduction of radar cross-section, as well as potential increase in available aperture. Much of the existing research in conformal antenna array has mainly focused on the design of antenna elements [3][4][5], the pattern synthesis and optimization of conformal antenna [6][7][8][9][10]. The high resolution direction of arrival (DOA) estimation algorithms [11][12][13][14] based on conformal antenna array has not been studied as intensively [15,16].…”

Section: Introductionmentioning

confidence: 99%

Fast Estimation of Frequency and 2-D Doas for Cylindrical Conformal Array Antenna Using State-Space and Propagator Method

Si¹,

Wan²,

Liu³

et al. 2013

PIER

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Abstract-The pattern of each element in conformal array has a different direction for the curvature of conformal carrier, which results in polarization diversity of conformal array antenna. Polarization parameters of incident signals are considered in snapshot data model in order to describe the polarization diversity of conformal array antenna. It is required that the polarization parameters and direction of arrival (DOA) of incident signals are estimated together. An integrated frequency and DOA estimation method is proposed in this paper for cylindrical conformal array antenna. The frequency estimation of signal source is obtained by constructing state-space matrix. Through well-designed configuration of elements on cylindrical carriers along with estimation of signal parameters via propagator method (PM), the decoupling scheme for DOA and polarization parameters is implemented. A novel parameter pairing method for frequency and DOA of multiple sources utilizing the interpolation technique is given, based on which the fast frequency-DOA estimation algorithm is developed. Effectiveness of the proposed method is demonstrated by simulation experimental results.

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Pattern Synthesis of Conformal Antenna Array by the Hybrid Genetic Algorithm

Cited by 79 publications

References 14 publications

Pattern Synthesis of Concentric Circular Antenna Array by Nonlinear Least-Square Method

Pattern Synthesis of Concentric Circular Antenna Array by Nonlinear Least-Square Method

Development of 61-Channel Digital Beamforming (Dbf) Transmitter Array for Mobile Satellite Communication

Fast Estimation of Frequency and 2-D Doas for Cylindrical Conformal Array Antenna Using State-Space and Propagator Method

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