Intermediate frequency transceiver development for next generation millimeter wave mobile communication system

• Main Authors: Chuang, Chin-Cheng, 莊錦政
• Other Authors: Hwang, Ruey-Bing
• Format: Others
• Language: zh-TW
• Published: 2014
• Online Access: http://ndltd.ncl.edu.tw/handle/73440499382796995014

碩士 === 國立交通大學 === 電信工程研究所 === 103 === In this thesis, an intermediate frequency transceiver module for next generation millimeter wave mobile communication is realized by using multilayer printed circuit board process. For the purpose of reducing the number of electronic components and high degree of integrity, we use the architecture of Direct-Conversion as the basic layout scheme. The module operates at 2.4 GHz with bandwidth of 250 MHz. We use error vector magnitude (EVM) as the main criterion to assess the quality of the module. Three kinds of modulation signal are adopted, including QPSK, 16-QAM and 64-QAM.The symbol rate of the modulation signal is set 25 Msym/s. The measurement results show that the EVM is below 3% when the module is operating at both Tx mode and Rx mode. Additionally, the module has the dynamic range about 50 dB. At the final measurement, we conduct a field trial test to validate the transmit-receive performance of the fabricated transceiver.The results show that the module has certain capability of demodulation under none ideal environment. The measured EVM is about 5 %.