Extension of {NVNA} Baseband Measurement for {PA} Characterization Under Complex Modulation

Yichi  Zhang; Xiaotao  Guo; Zhao  He; David Humphreys; Lifeng  Wang; Wei  Zhao; Zilong  Zhang

doi:10.1109/TMTT.2017.2752172

Extension of {NVNA} Baseband Measurement for {PA} Characterization Under Complex Modulation

Yichi Zhang
, Xiaotao Guo
, Zhao He
, David Humphreys
, Lifeng Wang
, Wei Zhao
, Zilong Zhang

Research output: Contribution to journal › Article (Academic Journal) › peer-review

10 Citations (Scopus)

434 Downloads (Pure)

Abstract

Abstract—We investigated the measurement techniques of the
nonlinear vector network analyzer (NVNA) test bench, to fully
characterize the nonlinear behavior of radio frequency (RF)
power amplifiers (PAs) driven by complex modulated signals.
In order to extend the baseband measurements, two kinds of
NVNA phase reference approaches are developed as alternative
solutions, so that the baseband phase measurements can be
achieved with those of modulated components at multiharmonic
RF bands. In the first approach, a modulated baseband signal
is combined with another modulated RF one to become the
desired NVNA phase reference. While as an alternative solution,
the second phase reference design is based on a “stepped”
multisine, which is stepped through the baseband and each
harmonic following the NVNA swept measurements, to achieve
stable phase measurements. To validate these proposed NVNA
test bench designs, an RF PA, driven by a large-signal long-term
evolution-like multisine, was tested and compared with digital
real-time oscilloscope measurements.

Original language	English
Pages (from-to)	1131
Number of pages	1141
Journal	IEEE Transactions on Microwave Theory and Techniques
Volume	66
Issue number	2
DOIs	https://doi.org/10.1109/TMTT.2017.2752172
Publication status	Published - 1 Feb 2018

Bibliographical note

Publication organised by National Institute of Metrology, China and National Physical Laboratory, UK

Keywords

Baseband measurements
nonlinear vector network analyzer (NVNA)
phase reference
phase standard
power amplifier (PA)

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10.1109/TMTT.2017.2752172

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@article{449dccdb249a421089f2c002e2307356,

title = "Extension of \{NVNA\} Baseband Measurement for \{PA\} Characterization Under Complex Modulation",

abstract = "Abstract—We investigated the measurement techniques of the nonlinear vector network analyzer (NVNA) test bench, to fully characterize the nonlinear behavior of radio frequency (RF) power amplifiers (PAs) driven by complex modulated signals. In order to extend the baseband measurements, two kinds of NVNA phase reference approaches are developed as alternative solutions, so that the baseband phase measurements can be achieved with those of modulated components at multiharmonic RF bands. In the first approach, a modulated baseband signal is combined with another modulated RF one to become the desired NVNA phase reference. While as an alternative solution, the second phase reference design is based on a “stepped” multisine, which is stepped through the baseband and each harmonic following the NVNA swept measurements, to achieve stable phase measurements. To validate these proposed NVNA test bench designs, an RF PA, driven by a large-signal long-term evolution-like multisine, was tested and compared with digital real-time oscilloscope measurements.",

keywords = "Baseband measurements, nonlinear vector network analyzer (NVNA), phase reference, phase standard, power amplifier (PA)",

author = "Yichi Zhang and Xiaotao Guo and Zhao He and David Humphreys and Lifeng Wang and Wei Zhao and Zilong Zhang",

note = "Publication organised by National Institute of Metrology, China and National Physical Laboratory, UK",

year = "2018",

month = feb,

day = "1",

doi = "10.1109/TMTT.2017.2752172",

language = "English",

volume = "66",

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journal = "IEEE Transactions on Microwave Theory and Techniques",

issn = "0018-9480",

publisher = "Institute of Electrical and Electronics Engineers (IEEE)",

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TY - JOUR

T1 - Extension of {NVNA} Baseband Measurement for {PA} Characterization Under Complex Modulation

AU - Zhang , Yichi

AU - Guo , Xiaotao

AU - He , Zhao

AU - Humphreys, David

AU - Wang , Lifeng

AU - Zhao , Wei

AU - Zhang, Zilong

N1 - Publication organised by National Institute of Metrology, China and National Physical Laboratory, UK

PY - 2018/2/1

Y1 - 2018/2/1

N2 - Abstract—We investigated the measurement techniques of the nonlinear vector network analyzer (NVNA) test bench, to fully characterize the nonlinear behavior of radio frequency (RF) power amplifiers (PAs) driven by complex modulated signals. In order to extend the baseband measurements, two kinds of NVNA phase reference approaches are developed as alternative solutions, so that the baseband phase measurements can be achieved with those of modulated components at multiharmonic RF bands. In the first approach, a modulated baseband signal is combined with another modulated RF one to become the desired NVNA phase reference. While as an alternative solution, the second phase reference design is based on a “stepped” multisine, which is stepped through the baseband and each harmonic following the NVNA swept measurements, to achieve stable phase measurements. To validate these proposed NVNA test bench designs, an RF PA, driven by a large-signal long-term evolution-like multisine, was tested and compared with digital real-time oscilloscope measurements.

AB - Abstract—We investigated the measurement techniques of the nonlinear vector network analyzer (NVNA) test bench, to fully characterize the nonlinear behavior of radio frequency (RF) power amplifiers (PAs) driven by complex modulated signals. In order to extend the baseband measurements, two kinds of NVNA phase reference approaches are developed as alternative solutions, so that the baseband phase measurements can be achieved with those of modulated components at multiharmonic RF bands. In the first approach, a modulated baseband signal is combined with another modulated RF one to become the desired NVNA phase reference. While as an alternative solution, the second phase reference design is based on a “stepped” multisine, which is stepped through the baseband and each harmonic following the NVNA swept measurements, to achieve stable phase measurements. To validate these proposed NVNA test bench designs, an RF PA, driven by a large-signal long-term evolution-like multisine, was tested and compared with digital real-time oscilloscope measurements.

KW - Baseband measurements

KW - nonlinear vector network analyzer (NVNA)

KW - phase reference

KW - phase standard

KW - power amplifier (PA)

U2 - 10.1109/TMTT.2017.2752172

DO - 10.1109/TMTT.2017.2752172

M3 - Article (Academic Journal)

SN - 0018-9480

VL - 66

SP - 1131

JO - IEEE Transactions on Microwave Theory and Techniques

JF - IEEE Transactions on Microwave Theory and Techniques

IS - 2

ER -

Extension of {NVNA} Baseband Measurement for {PA} Characterization Under Complex Modulation

Abstract

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Keywords

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