THESIS
2020
ix, 65 pages : illustrations ; 30 cm
Abstract
As the overwhelming demand for the wireless mobile data traffic continues to grow
dramatically, multiple mm-wave frequency bands have been specified and investigated for
5G mobile networks to deliver ultra-high-speed wireless backhaul connectivity [1]. The
24.25-29.5 GHz and 37-43.5 GHz bands are the most promising ones for 5G early
deployments. For instance, mainland China and Japan have selected 24.75-27.5 GHz and
27.5-29.5 GHz, respectively, for licensed use [2]. Highly integrated mm-wave transceiver
systems have been actively studied and investigated to support multi-Gb/s data rate in
wireless communication. This thesis also focuses on the design of a mm-wave transceiver
for 5G communication.
In the first part of this work, we present a co-simulation platform to link the ba...[
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As the overwhelming demand for the wireless mobile data traffic continues to grow
dramatically, multiple mm-wave frequency bands have been specified and investigated for
5G mobile networks to deliver ultra-high-speed wireless backhaul connectivity [1]. The
24.25-29.5 GHz and 37-43.5 GHz bands are the most promising ones for 5G early
deployments. For instance, mainland China and Japan have selected 24.75-27.5 GHz and
27.5-29.5 GHz, respectively, for licensed use [2]. Highly integrated mm-wave transceiver
systems have been actively studied and investigated to support multi-Gb/s data rate in
wireless communication. This thesis also focuses on the design of a mm-wave transceiver
for 5G communication.
In the first part of this work, we present a co-simulation platform to link the base-band
digital signals and the RF front-end to evaluate the performance of circuit blocks in
transceiver systems. M-QAM OFDM modulation scheme is implemented for BER and
constellation check. This platform is based on the MATLAB, ADS, Cadence, and EMX,
and it supports the mm-wave receiver IC design from system specifications to circuit
implementations. In the second part, we propose a mm-wave direct conversion receiver
front-end, with a focus on developing an LNA in the 24-32 GHz to meet the gain, noise
figure, linearity, bandwidth, and area requirements, simultaneously. A novel compact
three-coil transformer is employed to perform single-ended to differential conversion,
broadband input matching, gm-boosting, and noise suppression at the LNA input. The
proposed LNA is further integrated with an IQ mixer, a VGA, and output buffers to build
a broadband receiver front-end. In the last part, we evaluate the circuit performance in the
co-simulation platform. The proposed receiver front-end features a 3-dB bandwidth of 7.5
GHz, centered at 27.5 GHz. The simulated noise figure is below 5 dB. With 1 GHz signal
bandwidth and 16-QAM modulation scheme, it achieves a 3.76 Gb/s data rate, a 3.8%
EVM, and a BER of less than 10-6. This co-simulation platform can be further
implemented to support varieties of transceiver IC design. Such as, power amplifiers,
antennas, and other circuit bloc
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