Analysis of Phase Noise Performance in Spatially Separated Backscatter Systems
View / Open Files
Authors
Yu, S
Penty, R
Crisp, M
Publication Date
2021Journal Title
2021 IEEE International Conference on RFID Technology and Applications, RFID-TA 2021
Conference Name
2021 IEEE International Conference on RFID Technology and Applications (RFID-TA)
ISBN
9781665426572
Publisher
IEEE
Volume
00
Pages
169-172
Type
Conference Object
This Version
AM
Metadata
Show full item recordCitation
Yu, S., Penty, R., & Crisp, M. (2021). Analysis of Phase Noise Performance in Spatially Separated Backscatter Systems. 2021 IEEE International Conference on RFID Technology and Applications, RFID-TA 2021, 00 169-172. https://doi.org/10.1109/RFID-TA53372.2021.9617389
Abstract
Backscatter radio systems are generally considered to be suitable only for short range transmission limited by the two-way path losses and receiver sensitivity. Using a simple model of the receiver noise due to the leakage of the carrier signal into the receiver, we show that by spatially separating the transmit and receive antennas to increase isolation while sharing a single local oscillator such that the phase noise is correlated, a 6m antenna separation can achieve 10$, 000\mathrm{m}^{2}$ area of coverage, 3 times greater than a monostatic system. This can be increased a further 10 times if a delay is introduced to the path of the LO-Rx to match the propagation delay to within 1ns. Such a system could be implemented with a distributed antenna system or dedicated LO cable channel between the Tx and Rx nodes.
Sponsorship
Engineering and Physical Sciences Research Council (EP/S019405/1)
Identifiers
External DOI: https://doi.org/10.1109/RFID-TA53372.2021.9617389
This record's URL: https://www.repository.cam.ac.uk/handle/1810/334178
Statistics
Total file downloads (since January 2020). For more information on metrics see the
IRUS guide.