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This paper presents an analysis of MIMO antennas consisting of notch antenna and loop antenna for a wide area mobile communication system with bi-directional radiation patterns. The notch antenna radiates a horizontally polarized wave while the loop antenna radiates a vertically polarized wave. The MIMO antenna is designed for 4G applications with the resonance frequency at 3.5 GHz. The antenna produces...
This paper presents two-notch antenna consisting of I-shaped ground plane and microstrip feeding lines excited out of phase. Its radiation pattern is omni- or bi-directional in E plane by changing the antenna geometry. Antenna pattern control of this notch antenna is discussed in this paper based on the geometry optimization by characteristic modes analysis. Three symmetrical modes are excited by...
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