Abstract
For future healthcare in the terahertz (THz) band, a triple-band microstrip planar antenna integrated with metamaterial (MTM) based on a polyimide substrate is presented. The frequencies of operation are 500, 600, and 880 GHz. The triple-band capability is accomplished by etching metamaterial on the patch without affecting the overall antenna size. Instead of a partial ground plane, a full ground plane is used as a buffer to shield the body from back radiation emitted by the antenna. The overall dimension of the proposed antenna is 484 × 484 μm2. The antenna's performance is investigated based on different crucial factors, and excellent results are demonstrated. The gain for the frequencies 500, 600, 880 GHz is 6.41, 6.77, 10.1 dB, respectively while the efficiency for the same frequencies is 90%, 95%, 96%, respectively. Further research has been conducted by mounting the presented antenna on a single phantom layer with varying dielectric constants. The results show that the design works equally well with and without the phantom model, in contrast to a partially ground antenna, whose performance is influenced by the presence of the phantom model. As a result, the presented antenna could be helpful for future healthcare applications in the THz band.
Highlights
Terahertz (THz) technology has recently caught the interest of academicians, scientists, and researchers due to its numerous applications in communication, circular dichroism (CD) spectroscopy, radio astronomy, vehicular radar, explosive detection, planetary, health monitoring, sensing, imaging, and security, among others [1,2,3]
The results show that the MTM contributes to creating triple bands and improves the gain and radiation efficiency compared to conventional patches
6 Conclusion A triple-band microstrip planar antenna integrated with MTM based on a polyimide substrate is presented in the THz band for future healthcare applications
Summary
Terahertz (THz) technology has recently caught the interest of academicians, scientists, and researchers due to its numerous applications in communication, circular dichroism (CD) spectroscopy, radio astronomy, vehicular radar, explosive detection, planetary, health monitoring, sensing, imaging, and security, among others [1,2,3]. The main reason for this investigation is the THz band’s main advantages, which include but are not limited to high data rate, high confidentiality, low loss, low probability of interference, compact size, high smoke dust penetrability, lower power requirements, and high resolution [7,8,9] This investigation has resulted in efforts to integrate THz technology into wireless communication systems. The presented antenna integrated with MTM achieves stable performance such as efficiency, gain, and radiation pattern over the triple frequency bands. It studied while loaded on a single phantom model and shows performance equal to the case without the phantom model
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