Genetic algorithm design of compressed log periodic dipole array

Mangoud, M.A.; Aboul-Dahab, Mohamed A.; Zaki, Amira I.; El‐Khamy, Said E.

doi:10.1109/mwscas.2003.1562507

Cited by 8 publications

(9 citation statements)

References 2 publications

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“…All the dipoles are composed of thin wires with a uniform radius of 2 millimeters. The average ground is assumed with a relative permittivity of 13 :. The designed antenna can be supported by two masts with heights of 7.1 meters and 10 meters.…”

Section: Resultsmentioning

confidence: 99%

“…Although optimization methods including particle swarm optimization (PSO) [12] and GA [13] have been employed to design LPDAs and achieved a great success, the effects of the lossy ground were not included. In this paper, we employ GA together with NEC-2 [14] to optimize the geometry parameters of a miniaturized HF inverted-V LPDA composed of thin metal wires and easily mounted over the ground.…”

Section: Introductionmentioning

confidence: 99%

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An optimum design of miniaturized high frequency inverted-V log-periodic dipole antenna

Zhang

Gao

2011

Proceedings of 2011 IEEE CIE International Conference on Radar

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

An optimum design of miniaturized high frequency inverted-V log-periodic dipole antenna

Zhang

Gao

2011

Proceedings of 2011 IEEE CIE International Conference on Radar

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“…In [21] and [22], GAs are employed to maintain the values of FG and SWR over the entire operating bandwidth, and simultaneously minimize the LPDA length as well as the number of LPDA elements. The non-dominated sorting genetic algorithm II (NSGA-II) is applied in [23] to optimize LPDAs for operation in the range 3-30 MHz under requirements for minimum SWR, maximum FG and minimum LPDA length.…”

Section: Related Work On Lpda Optimizationmentioning

confidence: 99%

Optimal Wideband LPDA Design for Efficient Multimedia Content Delivery Over Emerging Mobile Computing Systems

Zaharis

Skeberis

Lazaridis

et al. 2016

IEEE Systems Journal

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Abstract-An optimal synthesis of a wideband Log-Periodic Dipole Array (LPDA) is introduced in the present study. The LPDA optimization is performed under several requirements concerning the standing wave ratio, the forward gain, the gain flatness, the front-to-back ratio and the side lobe level, over a wide frequency range. The LPDA geometry that complies with the above requirements is suitable for efficient multimedia content delivery. The optimization process is accomplished by applying a recently introduced method called Invasive Weed Optimization (IWO). The method has already been compared to other evolutionary methods and has shown superiority in solving complex non-linear problems in telecommunications and electromagnetics. In the present study, the IWO method has been chosen to optimize an LPDA for operation in the frequency range 800-3300 MHz. Due to its excellent performance, the LPDA can effectively be used for multimedia content reception over future mobile computing systems.

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“…A GA, the Nelder-Mead downhill simplex method and a hybrid GA/Nelder-Mead method are used in [13] to optimize LPDAs under requirements concerning the average values of the gain and SWR as well as their maximum deviation over the entire bandwidth. GAs are used in [14] and [15] to maintain the gain and the SWR over the operating bandwidth, while the LPDA length and the number of dipoles are reduced compared to those of the initial array. In [16], a multi-objective optimization is applied to LPDAs for operation in the range 3-30 MHz under requirements for minimum SWR, minimum antenna length and maximum gain by employing the Non-dominated Sorting Genetic Algorithm II (NSGA-II).…”

Section: Related Workmentioning

confidence: 99%

IWO-based synthesis of log-periodic dipole array

Zaharis

Skeberis

Xenos

et al. 2014

2014 International Conference on Telecommunications and Multimedia (TEMU)

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The Invasive Weed Optimization (IWO) is an effective evolutionary and recently developed method. Due to its better performance in comparison to other well-known optimization methods, IWO has been chosen to solve many complex non-linear problems in telecommunications and electromagnetics. In the present study, the IWO is applied to optimize the geometry of a realistic log-periodic dipole array (LPDA) that operates in the frequency range 800-3300 MHz and therefore is suitable for signal reception from several RF services. The optimization is applied under specific requirements, concerning the standing wave ratio, the forward gain, the gain flatness and the side lobe level, over a wide frequency range. The optimization variables are the lengths and the radii of the dipoles, the distances between them, and the characteristic impedance of the transmission line that connects the dipoles. The optimized LPDA seems to be superior compared to the antenna derived from the practical design procedure.

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Genetic algorithm design of compressed log periodic dipole array

Cited by 8 publications

References 2 publications

An optimum design of miniaturized high frequency inverted-V log-periodic dipole antenna

An optimum design of miniaturized high frequency inverted-V log-periodic dipole antenna

Optimal Wideband LPDA Design for Efficient Multimedia Content Delivery Over Emerging Mobile Computing Systems

IWO-based synthesis of log-periodic dipole array

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