Abstract
A compact ultra-wideband (UWB) multiple-input–multiple-output (MIMO) slot antenna with dual band-notched performance is presented. Unlike the traditional slot and Vivaldi antennas, the novel slot-line to coplanar waveguide (S-CPW) transmission structure improves the impedance of the antenna matching and realizes the wideband characteristics. By utilizing the odd mode operation of the S-CPW structure, the in-phase superposition radiation of four-way open slots is realized. The isolation and the band-notched characteristics are achieved by etching the T-slot structure and loading the split-ring resonators (SRRs), respectively. The actual design with the overall size of 0.25 × 0.25 × 0.006 λ03 (λ0 is the free space wavelength at the lowest operating frequency) has been fabricated and measured. The measured results demonstrate that the impedance bandwidth of the antenna is 2.5‑10.8 GHz for |S11| < −10 dB, and the notched band is 5.2–5.9 GHz and 6.6–7.3 GHz, respectively. Besides, the isolation of the proposed antenna is higher than 20 dB, and the antenna maintains relatively stable radiation characteristics and gain, as well as a lower envelope correlation coefficient (ECC < 0.004).
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: International Journal of RF and Microwave Computer-Aided Engineering
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
