IEEE Solid-States Circuits Magazine - Winter 2022 - 59

40
35
30
25
20
15
10
5
19.2
19.5
19.3
19.4
CMOS <10%
CMOS 10-20%
CMOS 20-30%
CMOS >30%
Trend CMOS <10%
Trend CMOS 10-20%
Trend CMOS 20-30%
Trend CMOS >30%
CMOS From 2018
110
40
35
30
25
20
15
10
5
10
100
1,000
19.1
SiGe <10%
SiGe 10-20%
SiGe 20-30%
SiGe >30%
Trend SiGe <10%
Trend SiGe 10-20%
Trend SiGe 20-30%
Trend SiGe >30%
SiGe From 2018
100
(Log) Frequency (GHz)
FIGURE 7: The CMOS and SiGe PA trends in RF and mm-wave bands.
of mobile battery limitations drives
high-throughput and power-efficient
transceiver (Tx) development with
more carrier aggregation (CA) and a
wider bandwidth per path. This year,
at ISSCC 2022, a sub-6-GHz (FR1) 5G
radio demonstrates a single-path,
wide-bandwidth, digital, intermediate
frequency (IF) receiver (Rx) architecture
enabling each downlink path to
support up to five CAs simultaneously
and maintain backward compatibility
with existing 2G/3G/4G standards.
Furthermore, another single-chip, 5G,
mm-wave (FR2), 16-channel, dualpolarized,
phased-array beamforming
IC (BFIC) with a corresponding
quad-stream IF IC is demonstrated to
support N257, N258, N261, and N260
with 32 antenna ports.
Figure 8 presents the trend in the
number of CAs for recent 5G cellular
development as well as the bandwidth
increase per downlink path. It
indicates an increasing CA number
and wider bandwidth per downlink
path for faster data rate requirements.
This year, the sub-6-GHz FR1
cellular Rx supports up to 15 inter/
intra CAs by three downlink paths
with the capability of achieving
300 MHz of bandwidth per path in
14-nm FinFET CMOS. The mm-wave
(FR2) 5G BFIC is designed in 28-nm
SOI CMOS and paired with a 14-nm
FinFET IF IC to support up to two
noncontiguous intraband CAs and
25
20
15
10
5
achieve 800 MHz of bandwidth per
downlink path.
Ultralow-power
(ULP) Rxs have
continued to make dramatic improvements
that facilitate widespread
adoption. Two ULP Rxs are
presented at ISSCC this year that
push the limits of sensitivity for
Number of CAs (Sub-6 GHz)
Maximum Bandwidth Per Path (Sub-6 GHz)
Number of CAs (mm-Wave)
Maximum Bandwidth Per Path (mm-Wave)
1,000
900
800
700
600
500
400
300
200
100
2014 2015 2016 2017 2018 2019 2020 2021 2022
Year
FIGURE 8: The trends in the number of CAs from the downlink path and the maximum bandwidth
per path for recent cellular system-on-chip implementations.
IEEE SOLID-STATE CIRCUITS MAGAZINE WINTER 2022
59
1,000
Psat (dBm)
Psat (dBm)
Number of CAs From Downlink Path
Maximum Bandwidth Per Path (MHz)

IEEE Solid-States Circuits Magazine - Winter 2022

Table of Contents for the Digital Edition of IEEE Solid-States Circuits Magazine - Winter 2022

Contents
IEEE Solid-States Circuits Magazine - Winter 2022 - Cover1
IEEE Solid-States Circuits Magazine - Winter 2022 - Cover2
IEEE Solid-States Circuits Magazine - Winter 2022 - Contents
IEEE Solid-States Circuits Magazine - Winter 2022 - 2
IEEE Solid-States Circuits Magazine - Winter 2022 - 3
IEEE Solid-States Circuits Magazine - Winter 2022 - 4
IEEE Solid-States Circuits Magazine - Winter 2022 - 5
IEEE Solid-States Circuits Magazine - Winter 2022 - 6
IEEE Solid-States Circuits Magazine - Winter 2022 - 7
IEEE Solid-States Circuits Magazine - Winter 2022 - 8
IEEE Solid-States Circuits Magazine - Winter 2022 - 9
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IEEE Solid-States Circuits Magazine - Winter 2022 - 16
IEEE Solid-States Circuits Magazine - Winter 2022 - 17
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IEEE Solid-States Circuits Magazine - Winter 2022 - 41
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IEEE Solid-States Circuits Magazine - Winter 2022 - 56
IEEE Solid-States Circuits Magazine - Winter 2022 - 57
IEEE Solid-States Circuits Magazine - Winter 2022 - 58
IEEE Solid-States Circuits Magazine - Winter 2022 - 59
IEEE Solid-States Circuits Magazine - Winter 2022 - 60
IEEE Solid-States Circuits Magazine - Winter 2022 - 61
IEEE Solid-States Circuits Magazine - Winter 2022 - 62
IEEE Solid-States Circuits Magazine - Winter 2022 - 63
IEEE Solid-States Circuits Magazine - Winter 2022 - 64
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IEEE Solid-States Circuits Magazine - Winter 2022 - 75
IEEE Solid-States Circuits Magazine - Winter 2022 - 76
IEEE Solid-States Circuits Magazine - Winter 2022 - 77
IEEE Solid-States Circuits Magazine - Winter 2022 - 78
IEEE Solid-States Circuits Magazine - Winter 2022 - 79
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IEEE Solid-States Circuits Magazine - Winter 2022 - 86
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IEEE Solid-States Circuits Magazine - Winter 2022 - 110
IEEE Solid-States Circuits Magazine - Winter 2022 - 111
IEEE Solid-States Circuits Magazine - Winter 2022 - 112
IEEE Solid-States Circuits Magazine - Winter 2022 - Cover3
IEEE Solid-States Circuits Magazine - Winter 2022 - Cover4
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