Volume 14, Issue 2 (2014)
MJEE 2014, 14(2): 1-9 |
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Nasirian M, Zaker Hossein F, Maddah-Ali M, Askari G R. Design guidelines for proximity coupled U-slot microstrip antennas. MJEE 2014; 14 (2) :1-9
URL: http://mjee.modares.ac.ir/article-17-1762-en.html
URL: http://mjee.modares.ac.ir/article-17-1762-en.html
1- MSc., Electrical engineering, communication - Field and wave
Dept. of Electrical and Computer Engineering,Isfahan University of Technology (IUT)
2- PhD., Electrical engineering, communication - Field and wave Assistant professor, Dept. of Electrical and Computer Engineering, Isfahan University of Technology (IUT)
3- MSc., Electrical engineering, communication - Field and wave Instructor, Information and Communication Technology Institute (ICTI), Isfahan University of Technology (IUT)
2- PhD., Electrical engineering, communication - Field and wave Assistant professor, Dept. of Electrical and Computer Engineering, Isfahan University of Technology (IUT)
3- MSc., Electrical engineering, communication - Field and wave Instructor, Information and Communication Technology Institute (ICTI), Isfahan University of Technology (IUT)
Abstract: (4667 Views)
The frequency bandwidth of microstrip patch antennas can be increased using both of U-slot and proximity feeding. Although some design rules have been already explained for the probe-fed U-slot antenna the proximity coupling causes to consider a lot of parameters for design procedure; consequently, to deal with all of them seems confusing. In this paper after investigating the effect of various parameters on the multiple resonant frequencies of the antenna and recognizing the most effective factors, some guidelines to design a proximity coupled U-slot microstrip antenna are proposed. In addition, an antenna element with 16% impedance bandwidth is designed at center frequency of 16.7GHz, and its broadband impedance and radiation characteristics are vastly considered. Also, 1×2 and 2×2 arrays of the antenna element are designed to use as subarrays for designing large arrays. The measurement results of return loss and radiation pattern, show good agreement with simulation results.
Received: 2016/01/20 | Accepted: 2014/11/22 | Published: 2016/08/2
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