High speed data transmission at 28 GHz for 5G wireless system
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Date
2019-06
Authors
Lo, Fang Jenn
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Abstract
The 5th generation of the wireless system had become the hottest topic for this few years. Mm-wave is one of the technologies that will do the most for 5th generation for the wireless system. The exploration toward milli-meter frequency band on the wireless system is important to counter the shortage of the wireless bandwidth due to the unexpected rising of the mobile users and the demand toward the data. Currently the advance of the 4th generation of wireless system is running out of bandwidth and will be saturated soon. The study of the 28 GHz milli-meter wave of the transceiver is needed to realize the 5th generation of the wireless system that can counter the shortage of the wireless bandwidth. In this research, the fabricated sub-system module of 28 GHz mm-wave RF front-end transceiver is studied and tested. Finally, the simulation and fabrication result the 28 GHz transceiver are compared. Each sub-system module of the RF front-end was studied and tested using the microwave instruments such as PNA-X network analyser, PXA signal analyser and swept signal generator to ensure all the subsystem function. If any malfunction sub-system module was detected, the IC would be replaced. Should the replacement of the new IC on the sub-system module is not functionable, then a new design of the circuit layout is needed. Second, we assembled all the subs-system module together to form transmitter and receiver after verifications were done on each sub-system module. Then, we obtained the experimental result of the output power of each transceivers’ sub-system node. Moreover, the simulation is done to obtain the output power of each transceivers’ sub-system node through ADS. The malfunction sub-system modules are found such as 28 GHz low noise amplifier, 28 GHz power amplifier, voltage-controlled oscillator and frequency multiplier. The layout design of the 28 GHz power amplifier is drawn. The final output node power of the transmitter system obtained is 38.439 dBm whereas the final output node power of the receiver system obtained is 29.846 dBm in simulation. Overall, the sub-system module of 28 GHz mm-wave RF front-end transceiver is successfully studied and tested. Besides that, simulation on the 28 GHz transceiver is also successfully demonstrated. The fabricated subs-system modules of 28 GHz transceiver are not able to assembly due to the lack of components.