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Integrated antenna switch for NB-IoT

Zetterblom, Fredrik LU and Dawji, Yunus LU (2018) EITM02 20181
Department of Electrical and Information Technology
Abstract
Transistors are used in all digital devices today. The demand of faster and smaller
devices such as mobile telephones and computers constantly drives the develop-
ment of smaller transistor technologies. Transistors can also be used in analog
applications. Today there are commercial chips with both radio and digital sys-
tems in the same package. Cellular Internet of Things (IoT) is expected to make
a big impact in large quantities, which requires low-cost solutions. Most cellular
communication devices needs a Front-End-Module (FEM) implemented in Gal-
lium Arsenide (GaAs) Monolithic Microwave Integrated Circuit (MMIC), which
is an expensive technology, or Silicon On Insulator (SoI) that offeres low leakage.
The more functionality... (More)
Transistors are used in all digital devices today. The demand of faster and smaller
devices such as mobile telephones and computers constantly drives the develop-
ment of smaller transistor technologies. Transistors can also be used in analog
applications. Today there are commercial chips with both radio and digital sys-
tems in the same package. Cellular Internet of Things (IoT) is expected to make
a big impact in large quantities, which requires low-cost solutions. Most cellular
communication devices needs a Front-End-Module (FEM) implemented in Gal-
lium Arsenide (GaAs) Monolithic Microwave Integrated Circuit (MMIC), which
is an expensive technology, or Silicon On Insulator (SoI) that offeres low leakage.
The more functionality that can be integrated in to the same chip, instead of using
FEM or "off-chip" components on Printed Circuit Board (PCB), the cheaper and
more robust the end product will be when produced.
The focus of this master thesis is to investigate solutions that integrate the
Transmit (TX)/Receive (RX) switch on bulk Complementary Metal-Oxide Semi-
conductor (CMOS). Three switch architectures were investigated during the thesis
work. The solutions were evaluated using four metrics: insertion loss, linearity,
power handling capability and bandwidth. Due to high bandwidth and power re-
quirement for IoT, the series shunt switch was found to be the most suitable solu-
tion. The proposed solutions pass reliability tests used for typical market front-end
module. A novel method for reducing insertion loss and improving switch linearity
by increasing substrate resistance has been proposed. (Less)
Popular Abstract
Internet of Things (IoT) is expected to grow in large scale as
more and more every day devices are connected to the internet.
To make it possible, small, inexpensive and low energy consuming
solutions are required. A part of realizing those requirements is
by integrating a full IoT-solution on a single chip.
Please use this url to cite or link to this publication:
author
Zetterblom, Fredrik LU and Dawji, Yunus LU
supervisor
organization
course
EITM02 20181
year
type
H2 - Master's Degree (Two Years)
subject
keywords
T/R (Transmit/Receive) switch, RF switch, integrated RF switch, Narrowband Internet of Things (NB-IoT), CMOS, frontend
report number
LU/LTH-EIT 2018-635
language
English
id
8945277
date added to LUP
2018-06-14 16:32:32
date last changed
2018-06-14 16:32:32
@misc{8945277,
  abstract     = {Transistors are used in all digital devices today. The demand of faster and smaller
devices such as mobile telephones and computers constantly drives the develop-
ment of smaller transistor technologies. Transistors can also be used in analog
applications. Today there are commercial chips with both radio and digital sys-
tems in the same package. Cellular Internet of Things (IoT) is expected to make
a big impact in large quantities, which requires low-cost solutions. Most cellular
communication devices needs a Front-End-Module (FEM) implemented in Gal-
lium Arsenide (GaAs) Monolithic Microwave Integrated Circuit (MMIC), which
is an expensive technology, or Silicon On Insulator (SoI) that offeres low leakage.
The more functionality that can be integrated in to the same chip, instead of using
FEM or "off-chip" components on Printed Circuit Board (PCB), the cheaper and
more robust the end product will be when produced.
The focus of this master thesis is to investigate solutions that integrate the
Transmit (TX)/Receive (RX) switch on bulk Complementary Metal-Oxide Semi-
conductor (CMOS). Three switch architectures were investigated during the thesis
work. The solutions were evaluated using four metrics: insertion loss, linearity,
power handling capability and bandwidth. Due to high bandwidth and power re-
quirement for IoT, the series shunt switch was found to be the most suitable solu-
tion. The proposed solutions pass reliability tests used for typical market front-end
module. A novel method for reducing insertion loss and improving switch linearity
by increasing substrate resistance has been proposed.},
  author       = {Zetterblom, Fredrik and Dawji, Yunus},
  keyword      = {T/R (Transmit/Receive) switch,RF switch,integrated RF switch,Narrowband Internet of Things (NB-IoT),CMOS,frontend},
  language     = {eng},
  note         = {Student Paper},
  title        = {Integrated antenna switch for NB-IoT},
  year         = {2018},
}