Low Noise 24 GHz CMOS Receiver for FMCW Based Wireless Local Positioning
V. Subramanian, T. Zhang, and G. Boeck
Published in:
IEEE Microwave Wireless Compon. Lett., vol. 21, no. 10, pp. 553-555 (2011).
Abstract:
This work demonstrates a fully integrated 24 GHz CMOS receiver targeted for low power and compact wireless sensor nodes utilizing FMCW radar for wireless local positioning. The receiver incorporates a highly integrated low noise amplifier, passive mixer and on-chip transformer balun for single-to-differential conversion of LO. The receiver chip has been realized in a 130 nm CMOS technology. At 24 GHz RF the measured receiver performance includes a power conversion gain of 16.5 dB, a noise figure of 5.3 dB, an input power at 1 dB compression point of -26 dBm and an IIP3 of -15 dBm. The complete receiver chip consumes 18 mW from a 1.2 V power supply with 13 mW for the LNA and 5 mW for the output IF buffer. The chip area is 0.7mm2. The realized receiver compares the best 24 GHz CMOS receiver realizations published so far.
Microwave Engineering Lab, Berlin Institute of Technology, Berlin, Germany
Index Terms:
Frequency modulated continuous wave (FMCW), local positioning, low power, receiver, sensor network, 24 GHz CMOS.
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