WFRF:(Modaresi M)
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- Modaresi, M. (author)
Efficient optimization of a Yagi-Uda antenna using genetic algorithm
- Article/chapterEnglish2017
Publisher, publication year, extent ...
- Institute of Electrical and Electronics Engineers (IEEE),2017
- printrdacarrier
Numbers
- LIBRIS-ID:oai:DiVA.org:kth-208115
- https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-208115URI
- https://doi.org/10.1109/ANTEM.2005.7852127DOI
Supplementary language notes
- Language:English
- Summary in:English
Part of subdatabase
- SwePubSwePub
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Notes
- QC 20170607
- In this paper, Yagi-Uda antenna is studied and analyzed considering a single mode cosine current distribution on all elements. A classical approach is taken for the analysis, by viewing Yagi antenna as a center-driven dipole array in which all but the actual exciter element are short-circuited at the terminals. Currents are induced in the elements via the mutual impedances, and radiation occurs as from a set of discrete sources. The mutual impedance matrix of the array is calculated using the induced EMF method and integral equations for the electric field. This analysis has led to a fast and efficient code to calculate Yagi parameters. The validity of the results has been checked with a MoM solution using NEC2 and good agreement has been observed. Then, the code is used together with a genetic algorithm in order to optimize Yagi-Uda antenna for gain maximization. A 31-element high gain Yagi with 19.2dB gain and the gain bandwidth of 8 percent is derived. Also the Pareto fronts are plotted for Yagi antennas with different number of elements which shows the trade off between the directivity and front to back lobe(F/B) ratio.
Subject headings and genre
- TEKNIK OCH TEKNOLOGIER Elektroteknik och elektronik Signalbehandling hsv//swe
- ENGINEERING AND TECHNOLOGY Electrical Engineering, Electronic Engineering, Information Engineering Signal Processing hsv//eng
- EMF Method
- Front to Back Lobe Ratio(F/B)
- Genetic Algorithm
- Method Of Moments(MoM)
- Mutual Impedance
- Pareto Fronts
Added entries (persons, corporate bodies, meetings, titles ...)
- Shafai, L. (author)
- Lindmark, BjörnKTH,Signalbehandling(Swepub:kth)u10doc6n (author)
- KTHSignalbehandling (creator_code:org_t)
Related titles
- In:ANTEM 2005 - 11th International Symposium on Antenna Technology and Applied Electromagnetics, Conference Proceedings: Institute of Electrical and Electronics Engineers (IEEE)9780973842500
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