Title :
A compact dual frequency antenna with Sierpinski gasket based slots
Author :
Krishna, Deepti Das ; Chandran, Anupam R. ; Aanandan, C.K.
Author_Institution :
Cochin Univ. of Sci. & Technol. Cochin, Cochin
Abstract :
A compact dual band microstrip patch antenna with fractal based slots is proposed in this paper. The structure consists of a square patch with modified Sierpinski gasket based slots, electromagnetically fed by a microstrip line. The antenna resonates at two distinct frequencies with linear polarization in the same plane. The simulated current distribution over the antenna establishes that the higher resonance is due to the smaller slots and the lower due to the central slot. In addition to the dual frequency behaviour, the antenna exhibits a size reduction of 77% at the lower resonance. Also it has broad radiation characteristics with cross-polarization levels better than -20dB.
Keywords :
antenna feeds; electromagnetic wave polarisation; fractal antennas; microstrip antennas; microstrip lines; multifrequency antennas; slot antennas; Sierpinski gasket based slots; current distribution; dual frequency antenna; electromagnetic feed; fractal based slots; linear polarization; microstrip line; microstrip patch antenna; Current distribution; Dual band; Electromagnetic wave polarization; Fractals; Frequency; Gaskets; Microstrip antennas; Patch antennas; Resonance; Slot antennas; Dual band antenna; Fractal patch antenna; Sierpinski gasket slot antenna;
Conference_Titel :
Microwave Conference, 2007. European
Conference_Location :
Munich
Print_ISBN :
978-2-87487-001-9
DOI :
10.1109/EUMC.2007.4405384
