Title :
A new compact koch fractal patch antenna on an EBG ground plane
Author :
Oliveira, Elder E C ; Assunção, Adaildo G D ; De Andrade Martins, Ronaldo ; Campos, Antonio L P S
Author_Institution :
Dept. of Electr. Eng., Fed. Univ. of Rio Grande do Norte, Natal, Brazil
Abstract :
A new antenna with Koch fractal patch elements of the first level (KR1) and electromagnetic bandgap in the ground plane (EBG-GP) is proposed in this paper. The design is based on Ansoft HFSSTM software and in order to validate the model several prototypes are built and measured. A better impedance matching for the device is obtained using the inset-fed technique. The measured return loss values for the proposed antennas at the resonant frequencies are lower than -20 dB. The KR1 EBG-GP antennas show corresponding resonant frequencies values lower than the rectangular patch antennas with inset-fed. That results in a size reduction factor around 28% for these structures resonating at 2.45 GHz.
Keywords :
fractal antennas; impedance matching; microstrip antennas; photonic band gap; Ansoft HFSSTM software; EBG ground plane; EBG-GP antennas; Koch fractal patch elements; compact Koch fractal patch antenna; electromagnetic bandgap; frequency 2.45 GHz; impedance matching; inset-fed technique; rectangular patch antennas; resonant frequency; size reduction factor; Antenna measurements; Electromagnetic measurements; Fractals; Impedance matching; Metamaterials; Patch antennas; Periodic structures; Resonant frequency; Software measurement; Software prototyping;
Conference_Titel :
Antenna Technology (iWAT), 2010 International Workshop on
Conference_Location :
Lisbon
Print_ISBN :
978-1-4244-4883-8
Electronic_ISBN :
978-1-4244-4885-2
DOI :
10.1109/IWAT.2010.5464698
