Design of a linear array antenna for shaped beam using genetic algorithm

Kundukulam, Sona O.; Beenamole, K. S.

doi:10.1002/mmce.20299

Cited by 11 publications

(5 citation statements)

References 15 publications

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“…Considering the total radiation pattern of an antenna array as in equation ( 1), the optimization problem that GA is trying to maximize is displayed as [41]…”

Section: Genetic Algorithmmentioning

confidence: 99%

Analysis, Optimization, and Hardware Implementation of Dipole Antenna Array for Wireless Applications

Malek

Seager

Flint

et al. 2022

International Journal of Antennas and Propagation

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The antenna pattern synthesis is one of the significant problems in the phased array antenna. Pattern synthesis refers to the optimized weight excitation of each antenna element in order to steer the beam electronically without mechanically rotating the antenna. It can be achieved by using a combination of phase shifters and attenuator circuits. In this paper, a 2 by 2 dipole antennas with an RF beamforming circuit has been designed to steer the main beam along the azimuth plane. The main beam coverage from 100° to 140° with a step size of 10° has been successfully optimized using a hybrid of the induced EMF method and a genetic algorithm. The optimization results were compared to the full-wave simulation technique implemented in Empire XCCel. The design is realistically implemented at 2.45 GHz, with both simulation and measurement results shown. The measured reflection coefficient of the phased array antenna is −48 dB at 2.56 GHz. The feasibility of the beam synthesis has been validated successfully with the main beam being steered at 110°. The possibility of a fabrication discrepancy resulting in minor radiation degradation is also discussed in this research. The dipole antenna system with RF beamformer circuit can be applied to indoor positioning systems such as Wi-Fi, wireless local area network (WLAN), and fifth-generation.

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“…Considering the total radiation pattern of an antenna array as in equation ( 1), the optimization problem that GA is trying to maximize is displayed as [41]…”

Section: Genetic Algorithmmentioning

confidence: 99%

Analysis, Optimization, and Hardware Implementation of Dipole Antenna Array for Wireless Applications

Malek

Seager

Flint

et al. 2022

International Journal of Antennas and Propagation

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“…Selection, crossover, and mutation. The crossover and the mutation methods are similar to the traditional genetic algorithm [26][27][28], as shown in Figure 2a,b, respectively.…”

Section: Description Of the Genetic Algorithm Flowmentioning

confidence: 99%

Design and Optimization for 77 GHz Series-Fed Patch Array Antenna Based on Genetic Algorithm

Yang

Zhang

et al. 2020

Sensors

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This paper proposes a method for designing a 77 GHz series-fed patch array antenna. Based on the traditional genetic algorithm, the study explores different array topologies consisting of the same microstrip patches to optimize the design. The main optimization goal is to reduce the maximum sidelobe level (SLL). A 77 GHz series-fed patch array antenna for automotive radar was simulated, fabricated, and measured by employing this method. The antenna length was limited to no longer than 3 cm, and the array only had a single compact series with the radiation patch about 1.54 mm wide. In the genetic algorithm used for optimization, the maximum sidelobe level was set equal to or less than −14 dB. The measurement results show that the gain of the proposed antenna was about 15.6 dBi, E-plane half-power beamwidth was about ±3.8°, maximum sidelobe level was about −14.8 dB, and H-plane half-power beamwidth was about ±30° at 77 GHz. The electromagnetic simulation and the measurement results show that the 77 GHz antenna designed with the proposed method has a better sidelobe suppression by over 4 dB than the traditional one of the same length in this paper.

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“…These four different algorithms include the GA [36][37][38][39], the particle swarm optimization (PSO) [40][41][42], the DE, and the DDE. In our simulation, when the cost function is less than the threshold value or algorithm does not find a better individual within 300 successive generations, the algorithm will be terminated, and a solution is then obtained.…”

Section: Comparison Of Ga Particle Swarm Optimization De and Ddementioning

confidence: 99%

Bit error rate reduction for circular ultrawideband antenna by dynamic differential evolution

Chiu

Liao

2011

Int J RF and Microwave Comp Aid Eng

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The dynamic differential evolution (DDE) is used to synthesize the radiation pattern of the directional circular arc array to minimize the bit error rate (BER) performance in indoor ultrawideband (UWB) communication system. Using the impulse response of multipath channel, the BER performance of the synthesized antenna pattern on binary pulse amplitude modulation system can be calculated. Based on the topography of the circular antenna array and the BER formula, the array pattern synthesis problem can be reformulated into an optimization problem and solved by the DDE algorithm. The novelties of our approach are not only choosing BER as the object function instead of sidelobe level of the antenna pattern but also considering the antenna feed length effect of each array element. The strong point of the DDE algorithm is that it can find out the solution even if the performance index cannot be formulated by simple equations. Simulation results show that the synthesized antenna array pattern is effective to focus maximum gain to the line of site path which scales as the number of array elements. In other words, the receiver can increase the received signal energy to noise ratio. The synthesized array pattern also can mitigate severe multipath fading in complex propagation environment. As a result, the BER can be reduced substantially in indoor UWB communication system. V C 2011 Wiley Periodicals, Inc. Int J RF and Microwave CAE 22:260-271, 2012.

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Design of a linear array antenna for shaped beam using genetic algorithm

Cited by 11 publications

References 15 publications

Analysis, Optimization, and Hardware Implementation of Dipole Antenna Array for Wireless Applications

Analysis, Optimization, and Hardware Implementation of Dipole Antenna Array for Wireless Applications

Design and Optimization for 77 GHz Series-Fed Patch Array Antenna Based on Genetic Algorithm

Bit error rate reduction for circular ultrawideband antenna by dynamic differential evolution

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