Mushroo
Mushroom-like EBG structure for Enhancement of Circular Polarization Array Antenna Performances
Sahar naserzadeh1,Faroukh Hojat kashani2, Manochehr Kamyab hesari3, Mohammad javad Asghari4
1, 4. Electrical Engineering Department Tehran South Branch Islamic Azad University (IAU) Tehran, Iran
2. Dept. of Electrical Engineering Iran University of Science & Technology (IUST) Tehran, Iran
3. Dept. of Electrical Engineering, Faculty of Electrical Engineering, K.N. Toosi University, Tehran, Iran
Corresponding author: sahar_naserzadeh @yahoo.com, Tel +98-910-2911161
Abstract: In this paper a microstrip array antenna with 4 truncated corner square patches surrounded with mushroom-like EBG structures have been widely developed in 2.48 GHz frequency. If the stop band of EBG structure is in the operational frequency of electromagnetic propagation wave with circularly polarized antenna, it can improve antenna applications. Results show that, these techniques cause axial ratio bandwidth (polarization quality) enhancement and gain improvement, also it decrease side lobe levels (SLL). In this paper we used HFSS 13 simulator to report antennas outputs with and without EBG surfaces.
[Sahar naserzadeh,Faroukh Hojat kashani, Manochehr Kamyab hesari, Mohammad javad Asghari.. Mushroom-like EBG structure for Enhancement of Circular Polarization Array Antenna Performances. Life Sci J2013;10(1):847-852]. (ISSN: 1097-8135). http://www.lifesciencesite.com. 3
Keyword: Circular Polarizatio Array Antenna (CPAA) Electromagnetic Band Gap (EBG), Axial Ratio Bandwidth (ARBW)
