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Articles by Yong-Heng Shang
Total Records ( 2 ) for Yong-Heng Shang
  Wei Chen , Hao Luo , Min Zhou , Zhe-Ming Lu , Yong-Heng Shang and Fa-Xin Yu
  In this study a level converter based on GaAs pHEMT technology for a MFC (Multifunctional Chip) is designed, simulated and tested for the application of T/R (Transmit/Receive) module for an X band phase array radar system. It has the advantages of smaller chip size, lower power consumption, higher efficiency, lower cost and high stability. The circuit design is based on a feedback and feed-forward network which compensates the chip process variations during the wafer fabrication and operation temperature changing. It results the designed chip has a high stability. Its supply voltage is -5 v with a shared bias generator, this allows reducing the power consumption compared with the other design at -7.5 v in the literature. The testing results have shown that the proposed novel design has met all the specifications given in this project.
  Yi-Qun Hu , Hao Luo , Yong-Heng Shang and Fa-Xin Yu
  A novel highly integrated front-end TR (Transmit-Receive) module with four RF (Radio Frequency) channels for the application of a K-Band transceiver is introduced. The housing cavity of the proposed TR module is based on the LTCC (Low Temperature Co-Fired Ceramics) technology with embedded passive RF circuit, control signal circuit and bias power supply circuit. Due to the employing of the LTCC technology, it allows to reduce the overall size and weight of the designed TR module. Furthermore, such design improves the overall performance of the TR module with a lower cost and high efficiency.
 
 
 
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