Isolation enhancement technique in a dual-band THz MIMO antenna with single radiator

Singh, Ravinder; Varshney, Gaurav

doi:10.1007/s11082-023-04811-y

Cited by 20 publications

(1 citation statement)

References 51 publications

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“…The NIAWR software and tuning and optimization procedure was used to model the equivalent circuit. The values of antenna circuit components were predicted using the equations and model technique described in [47,48]. The single-element THz antenna's equivalent circuit was designed initially and connected using coupling capacitors of the same circuit for other antennas.…”

Section: Scattering Parametersmentioning

confidence: 99%

A Quad-Port Nature-Inspired Lotus-Shaped Wideband Terahertz Antenna for Wireless Applications

Raghunath,

Kumar,

Ali

et al. 2023

JSAN

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This article is aimed at designing an inventive compact-size quad-port antenna that can be operated within terahertz (THz) frequency spectra for a 6G high-speed wireless communication link. The single-element antenna comprises a lotus-petal-like radiating patch and a defected ground structure (DGS) on a 20 × 20 × 2 µm3 polyamide substrate and is designed to operate within the 8.96–13.5 THz frequency range. The THz antenna is deployed for a two-port MIMO configuration having a size of 46 × 20 × 2 µm3 with interelement separation of less than a quarter-wavelength of 0.18λ (λ at 9 THz). The two-port configuration operates in the 9–13.25 THz frequency range, with better than −25 dB isolation. Further, the two-port THz antenna is mirrored vertically with a separation of 0.5λ to form the four-port MIMO configuration. The proposed four-port THz antenna has dimensions of 46 × 46 × 2 µm3 and operates in the frequency range of 9–13 THz. Isolation improvement better than −25 dB is realized by incorporating parasitic elements onto the ground plane. Performance analysis of the proposed antenna in terms of MIMO diversity parameters, viz., envelope correlation coefficient (ECC) < 0.05, diversity gain (DG) ≈ 10, mean effective gain (MEG) < −3 dB, total active reflection coefficient (TARC) < −10 dB, channel capacity loss (CCL) < 0.3 bps/Hz, and multiplexing efficiency (ME) < 0 dB, is performed to justify the appropriateness of the proposed antenna for MIMO applications. The antenna has virtuous radiation properties with good gain, which is crucial for any wireless communication system, especially for the THz communication network.

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Section: Scattering Parametersmentioning

confidence: 99%