To improve the integration density of RF front-end modules and reduce the cost of wireless communication terminals
a 2.4GHz RF front-end chip is designed and fabricated based on 0.18um CMOS process. The chip incorporates a power amplifier
a low noise amplifier
a SPST switch
a bandgap circuit and digital control circuit. The impedance matching networks of the PA and the LNA are all implemented on chip. The test results show that in the receiving mode
the chip gain is 11.2dB
the input \ output return loss is -5.8dB and -21.1dB respectively
and the IIP3 is 3.9dbM. In the transmission mode
the chip gain is up to 26.8dB
the input \ output return loss is -21dB and -14.2dB respectively
the output 1dB compression point is 23.5dbm
and the peak PAE is up to 24%. The chip possesses application prospect for 2.4GHz wireless communication systems.
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references
JOSEPH A, WOLF R. Integrated silicon RF front-end solutions for mobile communications[C]// IEEE 10th International Conference on ASIC. Shenzhen, China, 2013: 1-4.
JOO T, LEE D-H, HONG S. A fully integrated RF CMOS front-end IC for connectivity applications[J]. IEEE Transactions on Circuits and Systems Ⅱ: Express Briefs, 2016, 63(11): 1024-1028. DOI: 1024
KIM W-S, LI X, ISMAIL M. A 2.4 GHz CMOS low noise amplifier using an inter-stage matching inductor[C]// 42nd Midwest Symposium on Circuits and Systems. Las Cruces, NM, USA, 1999: 1040-1043.
Beijing CHI B Y, YU Z P, SHI B X. Analysis and design of CMOS RF integrated circuits[M]. Beijing: Tsinghua University Press, 2006: 169-180. DOI: 169
CHEN L, LE J L, GAN Y B, et al. A 2.4 GHz CMOS RF front-end circuit[J]. Microelectronics, 2017, 47(5): 609-613. DOI: 609