Biography
Enrollment Date: 2009
Graduation Date：2012
Degree：M.S.
Defense Date：2012.05.24
Advisors：Fule Li
Department：Institute of Microelectronics，Tsinghua University
Title of Dissertation/Thesis：A Programmable Power Amplifier for the Application of a Single-chip Transceiver Operating at 400MHz-440MHz
Abstract:
With the development of the wireless communication technology, the design of the wireless transceiver has been focused on by more and more people. The low power consumption and the miniature is one of the most important development directions of the wireless transceiver system design and many high integration low power transceivers is on sale in the market. The development of the CMOS technology has become an effective solution to raise the integration and to reduce the cost. As a result, many a single-chip CMOS transceiver has been developed.
In the past, few power amplifiers have been integrated into a transceiver for the reason that most of the power amplifiers are implemented in GaAs process. So the integration and the cost reduction are limited. And it stays challenging to integrate power amplifier into a single chip transceiver in standard CMOS due to its poor power capability, linearity, and efficiency. Moreover the power amplifier design is always one of the bottlenecks of the RF chip design.
In this paper, the architecture of the CMOS RF single-chip transceiver together with that of an improved edition is described. And two class AB power amplifiers for them are proposed. The second power amplifier is developed based on the first one’s measurement result. And many changes have been made to improve the performance. The differences of CMOS process from other processes for power amplifier design are introduced.
The amplifier designed for the 400MHz-440MHz single-chip wireless transceiver is based on 0.18um standard CMOS technology. Its voltage is 1.8 volt. And all the performance indexes are designed to satisfy the requirement of the transceiver chip. And the output power delivered by the amplifier could be digitally programmed. Its maxim output power is 10dBm.