| Passive Ultra High Frequency Radio Frequency Identification (RFID) is a technology that used radio frequency signal to achieve non-contact information transmission, and achieve its objectives identification through the information. Because of its long-distance, high speed and low cost, UHF RFID has become the focus of the study in RFID field. This paper studies the tag chip architecture design and its baseband processor design and implementation based on ISO/IEC18000-6C protocol.On the aspect of tag chip architecture design, this paper poses a new type of chip architecture based on the analysis of previous tag chip, and introduces two new design techniques as well as the analysis of their feasibility. One is the analog decoding technique, which not only correctly achieved the decoding feature, but also significantly reduced the power dissipation; Another is the backscatter clock adjustment technique, which achieved the design require of back link frequency continuously adjustable, and fundamentally resolved the the defect of back link frequency dynamic range shortage.For the research of tag’s baseband processor, this paper strictly follows the design agreement, and gives a proposal of baseband processor system architecture design and key modules design. At the every level of the baseband design and implementation, this paper introduces the power management strategies and power optimization techniques, such as power management, clock gating as well as low-threshold voltage process library, etc. And strives to maximize the reduction in system power dissipation and enhances the performance of tag.This paper also achieves the entire process of baseband design and implementation, which based on0.18μm standard cell library provided by the synopsys, and mainly elaborates the key steps of this process, including the logic synthesis based on DC and physical synthesis based on Astro.In the end, this paper gives the plan of testing as well as the test results of key circuits, and according to the analysis of test results, points out the direction of design task in the future. |
