[1] You ChangjiangLiu Jing, Zhang XiaodongZhu Xiaowei,. Reconfigurable anti-interference RF transceiverfor cognitive radio application [J]. Journal of Southeast University (English Edition), 2011, 27 (2): 123-127. [doi:10.3969/j.issn.1003-7985.2011.02.001]

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Reconfigurable anti-interference RF transceiverfor cognitive radio application()

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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:

27

Issue:

2011 2

Page:

123-127

Research Field:

Information and Communication Engineering

Publishing date:

2011-06-30

Info

Title:

Reconfigurable anti-interference RF transceiverfor cognitive radio application

Author(s):

You ChangjiangLiu Jing;  Zhang XiaodongZhu Xiaowei

State Key Laboratory of Millimeter Waves, Southeast University, Nanjing 210096, China

Keywords:

zero-IF;  direct up-conversion;  anti-interference;  cognitive radio;  white space spectrum

PACS:

TN92

DOI:

10.3969/j.issn.1003-7985.2011.02.001

Abstract:

An RF transceiver composed of a zero-IF receiver and a direct up-conversion transmitter for cognitive radio applications is presented. The adjustable channel filter array in the receiver is used to suppress adjacent channel interference in televisions signal coexistence environments. The low noise amplifier(LNA)with wide dynamic range and high linearity is employed to enhance the anti-interference competence of the zero-IF receiver. Meanwhile, the high linearity power amplifier(PA)is used to promote the adjacent channel power ratio(ACPR)characteristic of the direct up-conversion transmitter. The measured error vector magnitude(EVM)results show that the anti-interference competence of the zero-IF receiver is dramatically enhanced by employing a channel filter array. The measured ACPR of the direct up-conversion transmitter is -47.98 dBc on the channel centered at 714 MHz when the output power is 27 dBm.

References:

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Memo

Memo:

Biographies: You Changjiang(1983—), male, graduate;Zhu Xiaowei(corresponding author), male, doctor, professor, xwzhu@seu.edu.cn.
Foundation items: The National Natural Science Foundation of China(No.60621002), the National High Technology Research and Development Program of China(863 Program)(No.2009AA011801).
Citation: You Changjiang, Liu Jing, Zhang Xiaodong, et al.Reconfigurable anti-interference RF transceiver for cognitive radio application[J].Journal of Southeast University(English Edition), 2011, 27(2):123-127.[doi:10.3969/j.issn.1003-7985.2011.02.001]

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