Coupled RF signal cancellation based transceiver arrangement for backscatter communication

Agarwal, Akash and Machnoor, Manjunath and Kumar, Ritesh and Javed, G S and Vathsala, G A (2016) Coupled RF signal cancellation based transceiver arrangement for backscatter communication. In: IEEE MTT-S International Microwave and RF Conference (IMaRC), DEC 05-09, 2016, New Delhi, INDIA.

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Abstract

The isolation between Tx and Rx port is essential for long range backscatter communication. Coupler has long been used to isolate transmitter and receiver ports but isolation offered by a microstrip coupler is limited. This work proposes a transceiver system at 2.45 GHz with an isolation better than 75 dB between transmit and receive ports. The system comprises of novel arrangement of power dividers, couplers, patch antennas with a lambda/2 line for RF cancellation. RF cancellation technique is used in the current system to achieve additional isolation. The positioning of lambda/2 line also results in unique Transmit and receive radiation pattern and antenna coupling cancellation along with additional 30 dB isolation.

Item Type:	Conference Proceedings
Series.:	IEEE MTT-S International Microwave and RF Conference
Additional Information:	Copy right for this article belongs to the IEEE, 345 E 47TH ST, NEW YORK, NY 10017 USA
Department/Centre:	Division of Electrical Sciences > Electrical Communication Engineering
Date Deposited:	29 Jul 2017 10:20
Last Modified:	29 Jul 2017 10:20
URI:	http://eprints.iisc.ac.in/id/eprint/57524

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