Chalipa, A Novel Wideband Circularly Polarized Microstrip Fractal Antenna
Conference: EuCAP 2009 - 3rd European Conference on Antennas and Propagation
03/23/2009 - 03/27/2009 at Berlin, Germany
Proceedings: EuCAP 2009
Pages: 4Language: englishTyp: PDF
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Authors:
Rahmani, Maryam; Tavakoli, A.; Amindavar, H. R.; Reza, Ali M.; Dehkhoda, P. (Electrical Engineering Department, Amirkabir University of Technology (Tehran Polytechnic), 424 Hafez Ave., Tehran, Iran)
Abstract:
An improved wideband circularly polarized microstrip antenna is here proposed and analyzed. The radiating structure consists of a simple patch with a basic shape “Chalipa”, two rotated broken and crossed “S”, which has been iterated by a fractal pattern achieving a multiband or even wideband, structure. The basic shape represents a clockwise rotation that results in the same rotation of current direction and therefore the electromagnetic fields. This special characteristic of the antenna makes a significantly wideband circular polarization and compensates the bandwidth restrictions of microstrip antennas.