A Quadrature Balanced N-Path Receiver for Frequency Division Duplex With Thermal and Phase Noise Cancellation Under Antenna VSWR

Erez Zolkov; Emanuel Cohen

doi:10.1109/TMTT.2023.3328037

A Quadrature Balanced N-Path Receiver for Frequency Division Duplex With Thermal and Phase Noise Cancellation Under Antenna VSWR

Erez Zolkov, Emanuel Cohen

Technion - Israel Institute of Technology

Research output: Contribution to journal › Article › peer-review

Abstract

In this work, we propose a frequency division duplexing (FDD) transceiver front-end (TFE) capable of canceling both the transmitter (TX) noise and reciprocal mixing (RM), under antenna voltage standing wave ratio (VSWR) variations. The TFE is composed of a quadrature balanced N -path receiver (QBNR) with the addition of a coupled auxiliary path to cancel reflected RM from the antenna. A discrete implementation incorporating two-port N -path (TPNP) filters manufactured in TSMC CMOS 65 nm is shown. Measurements of the proposed TFE show more than 27-dB TX noise cancellation, with NF of 6-7 dB in the presence of a 5-dBm modulated TX blocker, under VSWR of 2:1 and equal thermal and RM noise floors of -147 dBm/Hz, with power consumption of 57 mW at a 1.5-GHz local oscillator (LO) frequency.

Original language	English
Pages (from-to)	3468-3475
Number of pages	8
Journal	IEEE Transactions on Microwave Theory and Techniques
Volume	72
Issue number	6
DOIs	https://doi.org/10.1109/TMTT.2023.3328037
State	Published - 1 Jun 2024

Keywords

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Antennas
Frequency division duplexing (FDD)
Interference cancellation
Microwave filters
Mixers
Noise measurement
Reflector antennas
Thermal noise
quadrature balanced <inline-formula xmlns:ali="http://www.niso.org/schemas/ali/1.0/" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"> <tex-math notation="LaTeX">$N$</tex-math> </inline-formula>-path receiver (QBNR)
self-interference cancellation (SIC)

All Science Journal Classification (ASJC) codes

Radiation
Condensed Matter Physics
Electrical and Electronic Engineering

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10.1109/TMTT.2023.3328037

Cite this

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author = "Erez Zolkov and Emanuel Cohen",

note = "Publisher Copyright: IEEE",

year = "2024",

month = jun,

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doi = "10.1109/TMTT.2023.3328037",

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AU - Cohen, Emanuel

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PY - 2024/6/1

Y1 - 2024/6/1

N2 - In this work, we propose a frequency division duplexing (FDD) transceiver front-end (TFE) capable of canceling both the transmitter (TX) noise and reciprocal mixing (RM), under antenna voltage standing wave ratio (VSWR) variations. The TFE is composed of a quadrature balanced N -path receiver (QBNR) with the addition of a coupled auxiliary path to cancel reflected RM from the antenna. A discrete implementation incorporating two-port N -path (TPNP) filters manufactured in TSMC CMOS 65 nm is shown. Measurements of the proposed TFE show more than 27-dB TX noise cancellation, with NF of 6-7 dB in the presence of a 5-dBm modulated TX blocker, under VSWR of 2:1 and equal thermal and RM noise floors of -147 dBm/Hz, with power consumption of 57 mW at a 1.5-GHz local oscillator (LO) frequency.

AB - In this work, we propose a frequency division duplexing (FDD) transceiver front-end (TFE) capable of canceling both the transmitter (TX) noise and reciprocal mixing (RM), under antenna voltage standing wave ratio (VSWR) variations. The TFE is composed of a quadrature balanced N -path receiver (QBNR) with the addition of a coupled auxiliary path to cancel reflected RM from the antenna. A discrete implementation incorporating two-port N -path (TPNP) filters manufactured in TSMC CMOS 65 nm is shown. Measurements of the proposed TFE show more than 27-dB TX noise cancellation, with NF of 6-7 dB in the presence of a 5-dBm modulated TX blocker, under VSWR of 2:1 and equal thermal and RM noise floors of -147 dBm/Hz, with power consumption of 57 mW at a 1.5-GHz local oscillator (LO) frequency.

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JO - IEEE Transactions on Microwave Theory and Techniques

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A Quadrature Balanced N-Path Receiver for Frequency Division Duplex With Thermal and Phase Noise Cancellation Under Antenna VSWR

Abstract

Keywords

All Science Journal Classification (ASJC) codes

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