Optimized Ultrawideband and Uniplanar Minkowski Fractal Branch Line Coupler

Autor:	Mohammad Jahanbakht, Mohammad Tondro Aghmyoni
Jazyk:	angličtina
Rok vydání:	2012
Předmět:	Electrical engineering. Electronics. Nuclear engineering TK1-9971 Cellular telephone services industry. Wireless telephone industry HE9713-9715
Zdroj:	International Journal of Antennas and Propagation, Vol 2012 (2012)
Druh dokumentu:	article
ISSN:	1687-5869 1687-5877
DOI:	10.1155/2012/695190
Popis:	The non-Euclidean Minkowski fractal geometry is used in design, optimization, and fabrication of an ultrawideband (UWB) branch line coupler. Self-similarities of the fractal geometries make them act like an infinite length in a finite area. This property creates a smaller design with broader bandwidth. The designed 3 dB microstrip coupler has a single layer and uniplanar platform with quite easy fabrication process. This optimized 180° coupler also shows a perfect isolation and insertion loss over the UWB frequency range of 3.1–10.6 GHz.
Databáze:	Directory of Open Access Journals
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