A Broadband Logarithmic Power Detector in 0.13-mu m CMOS

作者：Kim Kihyun^*; Kwon Youngwoo

来源：IEEE Microwave and Wireless Components Letters, 2013, 23(9): 498-500.

DOI：10.1109/LMWC.2013.2274994

• Active source degeneration
• broadband
• CMOS
• logarithmic amplifier
• power detector
• rectifier

A broadband logarithmic (log) power detector with a wide dynamic range has been developed using a 0.13 mu m CMOS process. The proposed power detector consists of three signal amplification and rectification branches combined in parallel for broadband operation. The required linearity and dynamic range are provided by high-linearity rectifier design using active degeneration technique. The fabricated power detector chip has a size of 1.0 mm x 0.75 mm and consumes 35.2 mW. The power detector shows a dynamic range wider than 43 dB with +/- 1 dB log error up to 14 GHz. Over 50 dB dynamic range is achieved at 16 GHz with a slightly higher log error of +/- 1.5 dB.

• 出版日期2013-9