Options
Digital Suppression of Transmitter Leakage in FDD RF Transceivers: Aliasing Elimination and Model Selection
Author(s)
Date Issued
2017-12-07
Date Available
2019-05-09T10:10:28Z
Abstract
The transmitter (TX)-induced interference due to power amplifier nonlinearities poses severe desensitization problems to the receiver chain in frequency-division duplexing transceivers. Due to nonlinear signal process involved, a high sampling rate is normally required in the existing digital suppression approaches, which can result in high cost and high power consumption in wideband systems. In this paper, a new digital suppression model is proposed to cancel the TX leakage at baseband with a low sampling rate. The cancellation model is based on the modified decomposed vector rotation model. With the addition of cross-Term products, the enhanced model is capable of eliminating the aliasing effect arising from the reduced sampling rate. Theoretical analysis of aliasing elimination is presented, and the algorithm is subsequently verified by both simulation and experiment results, confirming the effectiveness and feasibility of the proposed cancellation technique for TX leakage suppression. Compared with conventional solutions, the new approach uses much less hardware resource and consumes much lower power while achieving comparable performance.
Sponsorship
Science Foundation Ireland
Type of Material
Journal Article
Publisher
IEEE
Journal
IEEE Transactions on Microwave Theory and Techniques
Volume
66
Issue
3
Start Page
1500
End Page
1511
Copyright (Published Version)
2017 IEEE
Language
English
Status of Item
Peer reviewed
ISSN
0018-9480
This item is made available under a Creative Commons License
File(s)
Owning collection
Scopus© citations
7
Acquisition Date
Mar 28, 2024
Mar 28, 2024
Views
760
Acquisition Date
Mar 27, 2024
Mar 27, 2024
Downloads
493
Last Week
5
5
Last Month
14
14
Acquisition Date
Mar 27, 2024
Mar 27, 2024