Investigation of high sensitivity radio-frequency readout circuit based on AlGaN/GaN high electron mobility transistor

Zhang Xiao-Yu†^a), Tan Ren-Bing^b), Sun Jian-Dong^a), Li Xin-Xing^a), Zhou Yu^a), Lü Li^a), Qin Hua‡^a)

Schematic diagram of the RF readout circuit and equivalent circuit of HEMT. Inset shows the image of the transmission line with the HEMT device and SEM photo of HEMT.