Design of a Compact Dual Band-Notched Ultra-Wideband Diversity Antenna for MIMO Applications

Abstract:

A compact dual band-notched ultra-wideband (UWB) diversity antenna for multiple-input-multiple-output (MIMO) application is presented in this letter. The antenna consists of two tapered microstrip feeding lines and two semi-circle patches as the radiators. The C-band and wireless local area network (WLAN) for IEEE 802.11a band-notched function is achieved by etching four split-ring resonators (SRR) in the patches. The simulated and measured results show that the proposed antenna has a broadband impedance bandwidth covering the UWB band with definition of |S₁₁|<-10dB and a dual band-notched function at C-band and WLAN band. As a multiple-input antenna, a good isolation |S₂₁| between two ports better than -15 dB across the UWB is also achieved. The radiation patterns, peak gain, and envelope correlation coefficient are also measured and discussed.

• Periodical: Applied Mechanics and Materials (Volume 711)
• Pages: 316-319
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.711.316
• Online since: December 2014
• Authors: Bao Jun Song*, Hui Zhao, Tong Xu, Qin Zhang
• Keywords: Band-Notched, Diversity, Multiple-Input-Multiple-Output (MIMO), Planar Antenna, Ultra-Wideband (UWB)

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