A Code-Domain RF Signal Processing Front End with High Self-Interference Rejection and Power Handling for Simultaneous Transmit and Receive

Hussam Alshammary; Cameron Hill; Ahmed Hamza; James F. Buckwalter

doi:10.1109/JSSC.2019.2960486

A Code-Domain RF Signal Processing Front End with High Self-Interference Rejection and Power Handling for Simultaneous Transmit and Receive

Hussam Alshammary^*, Cameron Hill, Ahmed Hamza, James F. Buckwalter

^*Corresponding author for this work

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

16 Scopus citations

Abstract

A code-domain transceiver front end that incorporates a transmit modulator and a receive (RX) RF signal correlator is presented. An integrate-and-dump N -path filter improves rejection by 8 dB. We propose an RF chopper switch with 12.1-/23.1-dBm P1dB/IIP3 for both RF correlation and filtering that rejects TX self-interference by 49.5 dB. Walsh and Barker codes are generated with fine and coarse tuning for synchronization. The RX power consumption is 18 mW, including dynamic power (1-V supply) and four analog amplifiers (1.5 V) at the operating frequency of 1 GHz and the code rate of 200 megachip-per-second (Mc/s). The TX modulator operates to RF power levels up to 34.3 dBm and consumes less than 40 mW for 300 Mc/s. Over the air testing demonstrates synchronization with Barker codes.

Original language	English
Article number	8948228
Pages (from-to)	1199-1211
Number of pages	13
Journal	IEEE Journal of Solid-State Circuits
Volume	55
Issue number	5
DOIs	https://doi.org/10.1109/JSSC.2019.2960486
State	Published - May 2020

Bibliographical note

Publisher Copyright:
© 1966-2012 IEEE.

Keywords

CMOS SOI
cognitive radio
direct-sequence spread spectrum (DSSS)
full duplex (FD)
integrate-and-dump (IAD)
mixer-first receiver
RF front ends
signal processing at RF

ASJC Scopus subject areas

Electrical and Electronic Engineering

Access to Document

10.1109/JSSC.2019.2960486

Cite this

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title = "A Code-Domain RF Signal Processing Front End with High Self-Interference Rejection and Power Handling for Simultaneous Transmit and Receive",

abstract = "A code-domain transceiver front end that incorporates a transmit modulator and a receive (RX) RF signal correlator is presented. An integrate-and-dump N -path filter improves rejection by 8 dB. We propose an RF chopper switch with 12.1-/23.1-dBm P1dB/IIP3 for both RF correlation and filtering that rejects TX self-interference by 49.5 dB. Walsh and Barker codes are generated with fine and coarse tuning for synchronization. The RX power consumption is 18 mW, including dynamic power (1-V supply) and four analog amplifiers (1.5 V) at the operating frequency of 1 GHz and the code rate of 200 megachip-per-second (Mc/s). The TX modulator operates to RF power levels up to 34.3 dBm and consumes less than 40 mW for 300 Mc/s. Over the air testing demonstrates synchronization with Barker codes.",

keywords = "CMOS SOI, cognitive radio, direct-sequence spread spectrum (DSSS), full duplex (FD), integrate-and-dump (IAD), mixer-first receiver, RF front ends, signal processing at RF",

author = "Hussam Alshammary and Cameron Hill and Ahmed Hamza and Buckwalter, {James F.}",

note = "Publisher Copyright: {\textcopyright} 1966-2012 IEEE.",

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AU - Alshammary, Hussam

AU - Hill, Cameron

AU - Hamza, Ahmed

AU - Buckwalter, James F.

PY - 2020/5

Y1 - 2020/5

N2 - A code-domain transceiver front end that incorporates a transmit modulator and a receive (RX) RF signal correlator is presented. An integrate-and-dump N -path filter improves rejection by 8 dB. We propose an RF chopper switch with 12.1-/23.1-dBm P1dB/IIP3 for both RF correlation and filtering that rejects TX self-interference by 49.5 dB. Walsh and Barker codes are generated with fine and coarse tuning for synchronization. The RX power consumption is 18 mW, including dynamic power (1-V supply) and four analog amplifiers (1.5 V) at the operating frequency of 1 GHz and the code rate of 200 megachip-per-second (Mc/s). The TX modulator operates to RF power levels up to 34.3 dBm and consumes less than 40 mW for 300 Mc/s. Over the air testing demonstrates synchronization with Barker codes.

AB - A code-domain transceiver front end that incorporates a transmit modulator and a receive (RX) RF signal correlator is presented. An integrate-and-dump N -path filter improves rejection by 8 dB. We propose an RF chopper switch with 12.1-/23.1-dBm P1dB/IIP3 for both RF correlation and filtering that rejects TX self-interference by 49.5 dB. Walsh and Barker codes are generated with fine and coarse tuning for synchronization. The RX power consumption is 18 mW, including dynamic power (1-V supply) and four analog amplifiers (1.5 V) at the operating frequency of 1 GHz and the code rate of 200 megachip-per-second (Mc/s). The TX modulator operates to RF power levels up to 34.3 dBm and consumes less than 40 mW for 300 Mc/s. Over the air testing demonstrates synchronization with Barker codes.

KW - CMOS SOI

KW - cognitive radio

KW - direct-sequence spread spectrum (DSSS)

KW - full duplex (FD)

KW - integrate-and-dump (IAD)

KW - mixer-first receiver

KW - RF front ends

KW - signal processing at RF

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ER -

A Code-Domain RF Signal Processing Front End with High Self-Interference Rejection and Power Handling for Simultaneous Transmit and Receive

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

Access to Document

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