Ultra-Wideband (UWB) Antenna for Medical Imaging and Sensing Applications

This research work proposes a design of a wine glass shape two-port MIMO for Ultra-Wideband (UWB) applications. UWB technology is a pivotal component in various fields, notably in medical imaging and sensing applications. The frequency range of 3.1 GHz to 10.6 GHz allocated for UWB systems by the Federal Communications Commission (FCC) provides immense potential for high-resolution imaging and data communication. The suggested wine glass shape MIMO has an overall dimension of <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$100 ~\text{mm} \times 40 ~\text{mm} \times 1.6 ~\text{mm}$</tex> on FR4 substrate in its construction. The results of the MIMO antenna provide good isolation (20 dB) and maximum gain (4.7 dB) with Efficiency (<tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$&gt;75 \%$</tex>). Resonance Frequency (2.4 GHz and 5 GHz) is achieved at a frequency range by using DGS. DGS functions act as a reflector and decrease spatial coupling currents. Hence, good isolation in its resonant band extends. The operating bandwidth of the MIMO design is between 2.17 GHz and 10 GHz. MIMO Diversity Performance metrics such as ECC (<0.01), DG(>9.95dB), MEG (1), TARC (<10 dB), and characteristic results like <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$S$</tex>-parameters and radiation patterns are better satisfied.