Design, Implementation and Integration Test of a 5.2GHz WLAN RF Transceiver and Frequency Synthesizer

• Main Authors: Shih-Wei Hsieh, 謝士煒
• Other Authors: Sheng-Fuh Chang
• Format: Others
• Language: zh-TW
• Published: 2002
• Online Access: http://ndltd.ncl.edu.tw/handle/07526801971483830247

碩士 === 國立中正大學 === 電機工程研究所 === 90 === In this thesis, a 5.2GHz RF transmitter, receiver and frequency synthesizer is designed and implemented for high speed wireless local networks. The module employs the superheterodyne scheme, which consists of the low noise amplifier, RF filter, mixer, frequency synthesizer, driver amplifier, power amplifier, transmit-receive switch and antenna-diversity switch. The design started with link budget calculation to define subcircuits comply with IEEE802.11a RF specifications. Subcircuits are designed, implemented, and test separately with predefined performance. Then they are integrated on a two-layer board for CW signal and digital-modulated microwave signal test. The receiver overall gain is 41.5dB with 13dB noise figure. The EVM values are smaller than 16% for 6Mbps BPSK、12Mbps QPSK、24Mbps 16-QAM signals. The transmitted power is 17.6dBm. Finally, the real-time vedio signal wireless transmission test is performed in our laboratory environment.