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Progress In Electromagnetics Research
ISSN: 1070-4698, E-ISSN: 1559-8985
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SIERPINSKIZED KOCH-LIKE SIDED MULTIFRACTAL DIPOLE ANTENNA

By D. Li and J.-F. Mao

Full Article PDF (526 KB)

Abstract:
Koch-like fractal curve and Sierpinski Gasket are syncretized into a novel Sierpinskized Koch-like sided bow-tie (SKLB) multifractal in superior-inferior way. A K4S4 SKLB multifractal dipole fed by a linearly tapered microstrip Balun is designed, simulated, fabricated and measured. The well consistent results from measurement and experiment corroborate validity of design and the multifractal antenna's superiority and advantages over its monofractal counterparts in impedance, bandwidth, directivity, efficiency, and dimension. Six good matched bands(S11 ≤ -10 dB) with moderate gain (2.12 dBi-9.55 dBi) and high efficiency (87%-97%) are obtained within band 1.5 GHz-14.5 GHz, of which f1 = 1.92 GHz, f2 = 3.94 GHz, and f3 = 5.09 GHz are generally useful. The multibands are all almost omnidirectional or quasi-omnidirectional in H-plane (Phi=0°, XOZ) and doughnut-shaped or dented doughnut-shaped in E-plane (Phi = 90°, YOZ). So it is an attractive candidate for applications like PCS, IMT2000, UMTS, WLAN, WiFi, WiMAX and other fixed or mobile wireless multiband communication systems.

Citation:
D. Li and J.-F. Mao, "Sierpinskized Koch-Like Sided Multifractal Dipole Antenna," Progress In Electromagnetics Research, Vol. 130, 207-224, 2012.
doi:10.2528/PIER12060108
http://www.jpier.org/PIER/pier.php?paper=12060108

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