NDLI: Dual band LNA/mixer using conjugate matching for implantable biotelemetry

Content Provider	IEEE Xplore Digital Library
Author	Wei-Chen Huang Chen-Ming Hsu Chien-Ming Lee Hong-Yi Huang Ching-Hsing Luo
Copyright Year	2008
Description	Author affiliation: Dept. of Electr. Eng., Nat. Cheng Kung Univ., Tainan (Wei-Chen Huang; Chen-Ming Hsu; Chien-Ming Lee)
Abstract	A fully integrated 2.4/5.2-GHz dual-band low-noise amplifier (LNA) / mixer for implantable biotelemetry is presented. By using conjugate matching technique, the proposed front-end receiver circuit integrates LNA output and mixer input into a single chip at the 2.4 GHz and 5.2 GHz ISM band. The proposed front-end circuit was designed for super-heterodyne receiver. By switching local oscillator (LO) frequency, the output of proposed circuit is the intermediate frequency at the 400 MHz frequency band. The chip has been designed and fabricated in a TSMC 0.18-mum CMOS technology. The active chip area is about 1040 mum x 760 mum. The proposed front-end circuit exhibits a 22.6 dB gain, a 4.5 dB noise figure, and $OP_{1dB}$ of -15 dBm at 2.4 GHz and exhibits a 10.5 dB gain, a 5.9 dB noise figure, and $OP_{1dB}$ of -14.2 dBm at 5.2 GHz. In order to achieve single chip design target, this chip input was designed with on-chip matching component. The return loss of proposed circuit reaches more than 25 dB at the both 2.4 GHz and 5.2 GHz. The proposed circuit exhibits 9.4 mW power consumption by 1.8-V supply.
Starting Page	1764
Ending Page	1767
File Size	219060
Page Count	4
File Format	PDF
ISBN	9781424416837
DOI	10.1109/ISCAS.2008.4541780
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-05-18
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Dual band Biomedical telemetry Frequency CMOS technology Gain Noise figure Low-noise amplifiers Switching circuits Local oscillators Chip scale packaging
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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