Novel tri-band series fed microstrip antenna array for THz MIMO communications

Novel tri-band series fed microstrip antenna array for THz MIMO communications

A novel tri-band series fed microstrip two-element array antenna is reported in this paper for Terahertz (THz) multiple-input multiple-output (MIMO) communications. Each series-fed array consists of four radiating sections constructed using graphene material. The radiating sections consist of a squa...

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Bibliographic Details
Published in:Optical and quantum electronics Vol. 53; no. 7
Main Authors: Vijayalakshmi, K., Selvi, C S Kanimozhi, Sapna, Baskaran
Format: Journal Article
Language:English
Published: New York Springer US 01-07-2021
Springer Nature B.V
Subjects:
Antenna arrays
Antenna gain
Antennas
Characterization and Evaluation of Materials
Computer Communication Networks
Correlation coefficients
Electrical Engineering
Graphene
Lasers
Microstrip antennas
MIMO communication
Optical Devices
Optics
Photonics
Physics
Physics and Astronomy
Radiators
Reflectance
Serpentine
THz antennas
MIMO antennas
Isolation enhancement
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Summary:A novel tri-band series fed microstrip two-element array antenna is reported in this paper for Terahertz (THz) multiple-input multiple-output (MIMO) communications. Each series-fed array consists of four radiating sections constructed using graphene material. The radiating sections consist of a square loop loaded with a diamond-shaped radiator to offer multi-frequency operation. The proposed antenna operates at 2.3 THz, 3.2 THz and 4.5 THz. The antenna offers an effective 10 dB reflection coefficient bandwidth of 38 GHz, 43 GHz and 60 GHz centred at 2.3 THz, 3.2 THz and 4.5 THz respectively. The isolation enhancement between the antenna elements is achieved using a serpentine resonator. The port-to-port isolation is greater than 15 dB in all the operating bands. The realized antenna gain is greater than 5 dBi in all the operating frequencies. The MIMO metrics of the proposed two-element antenna array is estimated and the results are presented. The envelope correlation coefficient (ECC) is less than 0.2, the diversity gain is close to the theoretical limit of 10 dB and the mean effective gain is close to unity.
ISSN:0306-8919
1572-817X
DOI:10.1007/s11082-021-03065-w