Uwb Rf Receiver Front-end Development

With the rapid development of several areas such as third generation communication, satellite navigation, HD broadcast and TV, weather forecast, resource exploration, radar pre-warning, and electronic war, etc, Many countries had paid more attention to the research of the ultra wideband receiver. Wide bandwidth, low noise figure, high dynamic range, high sensitivity and high linearity are the new research direction.With a reference basis of many a design about radio frequency front-end design at home and abroad, this dissertation focused its research on the radio frequency front-end, analyzed basic principles of the broadband receiver, demonstrated the design and implementation of the radio frequency front-end with ultra-band, high dynamic range and low noise.By comparing with structures of other types of receiver, the research utilized second mixer super-heterodyne receiver architecture and focused on the design of the ultra wideband LNA, the inter-frequency module with the help of ADS simulation and optimization tools to finally achieve research target. The 200-3600MHz ultra wideband receiver can achieve less than 3dB noise figure, better than 1dB output-power flatness, greater than 60dBc clutter suppression and image frequency suppression,closer to 60dB dynamic range and nearly -115dBm minimum sensitivity.