Weiqun Chen

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Wireless LAN for industrial control (IC-WLAN) provides many benefits, such as mobility, low deployment cost, and ease of reconfiguration. However, the top concern is robustness of wireless communications. Wireless control loops must be maintained under persistent adverse channel conditions, such as noise, large-scale path loss, fading, and many(More)
— Wireless LAN for Industrial Control (IC-WLAN) provides many benefits, such as mobility, low deployment cost and ease of reconfiguration. However, the top concern is robustness of wireless communications. Wireless control loops must be maintained under persistent adverse channel conditions, such as noise, large-scale path loss,fading, and many(More)
Personal Communications Service (PCS) is one of the most popular digital mobile phone services standards in North America. Its downlink frequency band is centered at 1.96GHz with 60MHz bandwidth. This research presents a microcontroller configured active analog phase shifter at 1.96GHz with phase-shifting range of 90°. The Microcontroller (MCU)(More)
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