The design of a 2.4GHz radio-over-fiber (ROF) laser diode drive amplifier using TSMC 0.18-um CMOS technology is presented in this paper. The proposed drive amplifier is a single-ended two-stage amplifier with the operating voltages of 1.8V and 3.3V. The technique of dynamic bias is employed to enhance linearity. The post simulation results show that the linear amplifier achieves the power gain of 26.26dB, the output 1dB compression point of 20.49dBm at 2.4GHz. The maximum power added efficiency (PAE) is 27.97%. The components are all on chip including the input and output matching network, and the die size is 1.065mm×0.73mm.
By discussing the practical application of the theory of analog electronic technology in engineering, this paper solves the problem of lack of knowledge of innovation and entrepreneurship in the course of theoretical basis. Firstly, the basic principle of differential amplifier circuit is analyzed. The fully symmetrical circuit structure is used to suppress the common mode signal and amplify the differential mode signal effectively. Secondly, in practical application, the differential signal lines in printed circuit boards are used to effectively suppress electromagnetic interference. Finally, based on this example, this paper innovatively puts forward the integration of simulated electronic technology and innovation entrepreneurship education in basic engineering courses, hoping to give students inspiration about innovation and entrepreneurship in future teaching.
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