Title :
Dual-band integrated Wi-Fi PAs with load-line adjustment and phase compensated power detector
Author :
Yuan-Hung Chung;Po-Yu Chang;Meng-Hsiung Hung;Ming-Yeh Hsu;Che-Hung Liao;Chun-Wei Lin
Author_Institution :
MediaTek Inc., Hsinchu, Taiwan, 30078, R.O.C.
fDate :
5/1/2015 12:00:00 AM
Abstract :
A load-line adjusted 2.4GHz PA is designed to operate in full power (18dBm/150mA) & mid power (7dBm/19mA) in OFDM with ∼130mA saving. To improve network throughput in dense environment with per-packet TX power control, the phase-compensated power detector achieves ±0.6dB accuracy for the entire 5GHz band over 2∶1 VSWR and 16dBm±0.25dB over channel flatness in VHT80MCS9. The chip area is 0.21mm2 for load-line adjusted 2.4GHz PA and 0.13 mm2 for 5GHz PA with power detector.
Keywords :
"Detectors","Power generation","Power amplifiers","IEEE 802.11 Standard","Calibration","Power control","Accuracy"
Conference_Titel :
Radio Frequency Integrated Circuits Symposium (RFIC), 2015 IEEE
DOI :
10.1109/RFIC.2015.7337745
