The Design And Implementation Of Broadband Multi-channel RF Transceiver

Today, RF technology has been widely used market. Whether in the military or in civilian terms, RF technologies are constantly deepen the reform of wireless communication technology, and constantly promote the human mobile communication. RF transceiver wireless communication technology as an important link directly to a large extent determine the quality of the wireless communication system. RF transceiver module not only to meet the emission signal spectrally pure, high anti-jamming receiver sensitivity, high dynamic range transmitter efficiency of large requirements, but also meet the requirements of RF transceiver module small, lightweight, low driving voltage, low power consumption and a series of requirements.The issue is the design of a dual transmit channels modulated AM, ASK / OOK modulation single receiving channel RF transceiver, the transceiver operating frequency band 700 ~ 1100 MHz, transmit channels transmit high frequency resolution, large dynamic range and transmit power control with high precision, the receiver frequency bandwidth, noise figure is small. Two transmit paths of the same design, individually controllable power transmitting frequency, can work alone can work simultaneously, because the transceiver transceiver functions implemented in the different channels, so you can achieve full-duplex operation, has a certain value.The topics to transceivers and transceiver frequency source link as the main research contents of this paper, by studying the many domestic and foreign radio transceiver and associated circuitry paper documents, based on the theoretical analysis of the transceiver several basic structures and related theories combined frequency synthesis, modulation and demodulation technology, mixing technology, power amplification, AGC circuit design theory and application of the relevant principles, filter technology, discusses the implementation of the transceiver system. By comparing the basic structure of the transceiver, made the subject of system solutions and associated circuitry design ideas, through ADS(Advanced Design System) simulation software, system link and associated circuitry from two levels of the transceiver system to conduct a comprehensive design and simulation, by optimizing the structure and parameters of the simulation results of the RF transceiver system to meet the requirements to verify the design. Finally, by using Altium Designer PCB design software, paper design the actual circuit, and circuit debugging and testing were kind to analyze the process of debugging and testing problems, proposed solutions, to get the whole transceiver system to meet the performance requirements.