Title :
Analysis and design of a low sidelobe level and wide-band aperture coupled microstrip antenna array using FDTD
Author :
Loghmannia, P. ; Kamyab, M. ; Ranjbar Nikkhah, M. ; Rashed-Mohassel, Jalil ; Nickpay, M.R.
Author_Institution :
Dept. of Electr. Eng., K.N. Toosi Univ. of Technol., Tehran, Iran
Abstract :
This paper presents a low sidelobe level (SLL) and wide-band 8×8 aperture coupled microstrip antenna array. For rigorous analysis of element characteristics, a single aperture coupled microstrip antenna is analyzed using finite difference time domain (FDTD). Consideration imperfect ground planes in antenna and the finite structure, one finds that FDTD gives more precise results for element designing. To achieve improvement in SLL, Dolf-Chebyshev power distribution is used in the antenna design. Measured results demonstrate that the impedance bandwidth of the proposed antenna is 12% at the center frequency of 5 GHz and average E-plane and H-plane SLL are less than -23 dB. The average gain of the antenna array is 22.5 dB.
Keywords :
aperture antennas; broadband antennas; finite difference time-domain analysis; microstrip antenna arrays; Dolf-Chebyshev power distribution; E-plane SLL; FDTD; H-plane SLL; antenna design; center frequency; element characteristics; element designing; finite difference time domain; finite structure; ground planes; impedance bandwidth; low sidelobe level; rigorous analysis; single aperture coupled microstrip antenna; wide-band aperture coupled microstrip antenna array; Antenna measurements; Aperture coupled antennas; Arrays; Microstrip; Microstrip antenna arrays; Microstrip antennas;
Conference_Titel :
Electrical Engineering (ICEE), 2013 21st Iranian Conference on
Conference_Location :
Mashhad
DOI :
10.1109/IranianCEE.2013.6599840
