## 8 Conclusions  
The proposed design can be used for broadband radio applications within the first resonance, long-distance radio telecommunications; sub-6 GHz and other C-Band applications can be served by utilizing the second to fifth spectrum; X-Band radar applications can be supported by the sixth spectrum (7.6-8.2) GHz, and space communications, terrestrial broadband, satellite communications, amateur radio systems aided by the last vast spectrum (9.27-13.83) GHz. In addition, it can support the fifth generation (5G) FR1 band that is intended to cover up to 7.125 GHz. The achieved notches are intended to avoid interfering with WiMAX through the first notch, aeronautical radio navigation, which falls within the second and the sixth notches, the 5 GHz Wi-Fi band within the third rejecting band, and fixed and mobile satellite transmission within the fourth and fifth stopbands. A printed microstrip meandered bowtie antenna is investigated and fabricated on an FR-4 substrate. The upper layer contains the two portions of the bowtie, where the right segment of the bowtie is coupled to the feedline, and the left portion is linked to the ground in the back layer through a shorting pin. Although the structure seems small and simple, the antenna exhibits seven resonating bands and six rejecting bands by optimizing the meandered arm's length, width, number, and spacing, making the antenna suitable for sub-6 GHz and UWB 5G communications. The antenna has a maximum gain and radiation efficiency of 4.46 dB and 90.3%, respectively. The MIMO configuration of the proposed antenna shows an acceptable value for ECC, DG, MEG, and CCL. The antenna is best suited for an end-user customer to accept and reject different communication services by just utilizing the corresponding band. Conceptualization, Y.S.F. and S.A.; methodology, Y.S.F. and S.A.; software, Y.S.F. ; validation, Y.S.F., N.O.P., C.H.S., R.A.-A. and S.A.; formal analysis, N.O.P., C.H.S., R.A.-A. and Y.S.F. ; investigation, Y.S.F. and S.A.; resources, Y.S.F. and S.A.; data curation, Y.S.F. and R.A.-A. writing--original draft preparation, Y.S.F. ; writing--review and editing, Y.S.F., C.H.S. and S.A.; visualization, Y.S.F., N.O.P., C.H.S. and R.A.-A. ; supervision, Y.S.F. ; project administration, Y.S.F., funding; N.O.P., C.H.S., R.A.-A. All authors have read and agreed to the published version of the manuscript. \begin{table}
\begin{tabular}{c c c c c c c} \hline
**Ref.** & **Radiator Shape** & **Resonances (GHz)** & **Gain (dB)** & **Size (mm\({}^{2}\))** & **No. of Spectrums** & **Covered Bands** \\ \hline
[16] & Split Ring & 2.45, 52, 9.7 & 7 & 40 \(\times\) 30 & 3 & S, C, X \\ \hline
[17] & Split Ring metamaterial & 4.27, 5.42, 12.4 & - & 20 \(\times\) 20 & 3 & C, X \\ \hline
[18] & Bowtie and & & & & & \\ meandered lines & 1.62, 4.22, 7.13 & 8.2 & 20 \(\times\) 10.4 & 3 & L, C \\ \hline
[19] & Triangle and & 2.88, 3.64, 3.95, & 10.5 & 70 \(\times\) 50 & 6 & S, C \\  & V-parasitic & 4.36, 4.81, 5.6 & & & & \\ \hline
[20] & Slotted conical patch & 2.4, 5.2, 5.8, 27.5 & 5.85 & 30 \(\times\) 30 & 4 & S, C, Ka \\ \hline
[21] & F-shape element on a & 2.1, 2.4, 33.35, 3.5, & 3.88 & 40 \(\times\) 35 & 6 & S, C \\  & truncated ground plane & 5.28, 5.97 & & & & \\ \hline Proposed Antenna & Meandered Bowtie & 2.7, 4.05, 5.05, 6.04, & & & & \\  & 7.15, 7.9, 11.55 & 4.46 & 30 \(\times\) 30 & 7 & S, C, X \\ \hline \end{tabular}
\end{table} 
Table 6: Comparison of this work with other multiband antennas. **Funding:** This paper is also partially funded by British Council \"2019 UK-China-BRI Countries Partnership Initiative\" program, with project titled \"Adapting to Industry 4.0 oriented International Education and Research Collaboration. **Data Availability Statement:** The data is available with the author upon request. **Acknowledgments:** The authors would like to thank the Deanship of Scientific Research at the University of Jordan for providing the facilities for conducting this research for the year 2019-2022.