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Compact UWB–MIMO antenna with quad-band-notched characteristic

Published online by Cambridge University Press:  10 November 2016

Ling Wu*
Affiliation:
College of Physical Science and Technology, Huazhong Normal University, No.152 Luoyu Road, Wuhan, Hubei 430070, People's Republic of China
Yingqing Xia
Affiliation:
College of Physical Science and Technology, Huazhong Normal University, No.152 Luoyu Road, Wuhan, Hubei 430070, People's Republic of China
*
Corresponding author: L. Wu Email: [email protected]

Abstract

With quad-band-notched characteristic, a compact ultrawideband (UWB) multiple-input-multiple-output (MIMO) antenna is introduced in the paper. The UWB–MIMO system has two similar monopole elements and occupies 30 × 45 mm2. By inserting two L-shaped slots, CSRR and C-shaped stubs, four notched bands are achieved (3.25–3.9, 5.11–5.35, 5.5–6.06, and 7.18–7.88 GHz) to filter WiMAX, lower WLAN, upper WLAN, and X-band. Meanwhile, the isolation is obviously enhanced with three metal strips on the ground plane. Results indicate that the antenna covers UWB frequency band of 3.1 – 10.6 GHz except four rejected bands, isolation of better than −18 dB, envelope correlation coefficient of <0.02, and good radiation pattern, thus making it useful for UWB systems.

Type
Research Papers
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2016 

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References

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