Electronically Reconfigurable WLAN Band-Notched MIMO Antenna for Ultra-wideband Applications

A low-profile electronically reconfigurable WLAN band-notched dual port multiple-input multipleoutput (MIMO) antenna design for ultra-wideband applications has been presented. Antenna elements exhibit good impedance match (S11 ≤ -10 dB) over entire ultrawideband (3.1 to 10.6 GHz) spectrum. The decou...

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Bibliographic Details
Published in:Applied Computational Electromagnetics Society journal 2021-08, Vol.36 (8), p.1108-1111
Main Authors: Quddus, Asim, Saleem, Rashid, Arain, Salman, Hassan, Syed Rizwan, Shafique, M. Farhan
Format: Article
Language:English
Subjects:
Antenna design
Antennas
Bias
Decoupling
Design
Diodes
Engineering
Finite element analysis
Frequencies
Local area networks
MIMO communication
Optimization
PIN diodes
Radiation
Radiators
Reconfiguration
Ultrawideband
Wireless communications
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Summary:A low-profile electronically reconfigurable WLAN band-notched dual port multiple-input multipleoutput (MIMO) antenna design for ultra-wideband applications has been presented. Antenna elements exhibit good impedance match (S11 ≤ -10 dB) over entire ultrawideband (3.1 to 10.6 GHz) spectrum. The decoupling structure is used to improve isolation (S12/S21) above 20 dB over entire UWB band. Moreover, reconfigurable band-notching is achieved by inserting PIN diodes along the inverted L-shaped slots, in each radiator. Notch at WLAN (5.5 GHz) frequency band is achieved by switching the PIN diode to ‘OFF’ state. The antenna design is fabricated as well as measured, and the results suggests that the proposed design with switchable WLAN band-notch characteristics is suitable candidate for ultra-wideband applications.
ISSN:1054-4887
1943-5711
DOI:10.47037/2021.ACES.J.360821