2.4 GHz dual polarised monostatic antenna with simple two-tap RF self-interference cancellation (RF-SIC) circuitry

Nawaz, Haq and Gürbüz, Özgür and Tekin, İbrahim (2019) 2.4 GHz dual polarised monostatic antenna with simple two-tap RF self-interference cancellation (RF-SIC) circuitry. Electronics Letters, 55 (6). pp. 299-300. ISSN 0013-5194 (Print) 1350-911X (Online)

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This Letter presents a dual polarised monostatic patch antenna with a simple two-tap RF/analogue domain-based self-interference cancellation (SIC) (RF-SIC) circuitry to achieve high interport isolation in a comparatively wider bandwidth for a 2.4 GHz in-band full duplex wireless transceiver. A brief mathematical description for the deployed two-tap RF-SIC is also presented to provide insight into self-interference (SI) suppression in a comparatively wider bandwidth. The implemented antenna with a two-tap RF-SIC circuitry achieves around 80 dB T-x-R-x isolation for a 20 MHz bandwidth in addition to more than 90 dB peak isolation for measurements performed in a lab environment where SI may result from the nearby placed objects. The deployed two-tap RF-SIC circuit can be tuned to effectively cancel out SI caused by reflections of the radio signal from the surroundings. Moreover, an 80 dB isolation bandwidth can be tuned within a 10 dB return loss bandwidth of the implemented dual polarised antenna.
Item Type: Article
Uncontrolled Keywords: radio transceivers; interference suppression; radiofrequency interference; microstrip antennas; electromagnetic wave polarisation; UHF antennas; two-tap RF-SIC circuitry; dual polarised monostatic patch antenna; two-tap RF-analogue domain-based self-interference cancellation; interport isolation; in-band full duplex wireless transceiver; radio signal reflection; frequency 2; 4 GHz; bandwidth 20; 0 MHz; loss 10; 0 dB
Divisions: Sabancı University Nanotechnology Research and Application Center
Faculty of Engineering and Natural Sciences > Academic programs > Electronics
Faculty of Engineering and Natural Sciences
Depositing User: Özgür Gürbüz
Date Deposited: 21 May 2019 10:50
Last Modified: 12 Jun 2023 15:48
URI: https://research.sabanciuniv.edu/id/eprint/37025

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