Miniaturised implantable circular polarized antenna with a high ARBW
Rajiv Kumar Nehra, Ajay Dureja, Rajkumar Singh Rathore, Tiansheng Yang, Lu Wang, Mustafa Hikmet Ucar, Mustafa Hikmet Ucar, Mustafa Hikmet Ucar
TL;DR
A miniaturized implantable antenna with circular polarization is developed for biological applications, operating efficiently in the ISM band.
Contribution
The novel design incorporates metamaterial and a sorting pin to achieve strong circular polarization with a high ARBW and reduced SAR.
Findings
The antenna achieves an ARBW of 830 MHz with an H-shaped metamaterial on the superstrate.
The specific absorption rate is improved to 952.1 W/KG.
Simulated and measured impedance bandwidths are 110 MHz and 90 MHz, respectively.
Abstract
For biological applications, this communication uses an implanted antenna loaded with metamaterial and a sorting pin. The suggested antenna operates at 2.44 GHz in the ISM band. The first antenna’s resonant frequency is lowered from 2.53 GHz to 2.46 GHz by applying a sorting pin. This causes the antenna to become circularly polarized and have an ARBW of 580 MHz (2.15 GHz - 2.73 GHz). Strong CP behavior with an ARBW of 830 MHz from 2.01 GHz to 2.84 GHz in the ISM band is produced by incorporation of an H-shaped metamaterial on the antenna’s superstrate. Additionally, the reasonable value of the specific absorption rate improved from 960.5 to 952.1. Highlights of the suggested antenna include its miniature size (10.67 mm3), strong CP properties, the significant value of SAR 952.1 W/KG, and unslotted ground plane to detract from designing labyrinthine backscattering radiation. After…
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Taxonomy
TopicsWireless Body Area Networks · Antenna Design and Analysis · Energy Harvesting in Wireless Networks