Low profile multi-polarization diversity UWB antenna for body centric communications
| Autor: | Malathi Kanagasabai, Padmathilagam Sambandam, Mohammed Gulam Nabi Alsath, Vikneshwaran Murugesan, Sandeepkumar Palaniswamy, Arunkumar Shrivastav |
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| Rok vydání: | 2022 |
| Předmět: | |
| Zdroj: | International Journal of Microwave and Wireless Technologies. :1-12 |
| ISSN: | 1759-0795 1759-0787 |
| Popis: | A low-profile multi-polarized MIMO ultra-wideband antenna suitable for body-centric communications is reported. MIMO configuration is achieved using the symmetric heptagonal monopole (SHM) antenna, a mirrored SHM antenna, an asymmetric ruby-shaped monopole (ARSM) antenna, and a mirrored ARSM antenna placed over the modified C-shaped ground plane (MCGP). The proposed antenna elements are designed to achieve resonance for the entire ultra-wideband frequency range. The SHM antenna is coupled with a co-planar waveguide to produce linear polarization. An ARSM antenna generates circular polarization utilizing an asymmetric geometry both in the radiator and a truncated ground plane. Both the SHM antenna and an ARSM antenna are aligned face-to-face over an MCGP plane and good isolation >15 dB is realized between the antenna elements. The gain and total efficiency for linear polarized and the circularly polarized antennas are 3.05–4.8 dBi/48–66% and from 2.8 to 5 dBic/52 to 70.5%, respectively. The specific absorption rate values are evaluated to understand their suitability for WBAN communications. |
| Databáze: | OpenAIRE |
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