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This paper presents an in-depth analysis of an SiGe BiCMOS on-off keying (OOK) receiver composed of a low-noise SiGe amplifier and an OOK detector. The analysis indicates that the bias circuit and bias current have a substantial impact on the receiver and should be optimized for best performance. The LO leakage from the transmitter can also have a detrimental impact on the receiver sensitivity and should be minimized for best performance. The receiver consumes 11 mW, has a noise equivalent power of 5-10 fW/Hz1/2 at 55 GHz, and an instantaneous dynamic range of 27-30 dB. The OOK receiver achieves 6-Gb/s communication with a bit-error rate (BER) <; 10-12 at room temperature. Operation is also demonstrated up to 105°C at 3 Gb/s with a BER <; 10-12.
Microwave Theory and Techniques, IEEE Transactions on (Volume:60 , Issue: 10 )
Date of Publication: Oct. 2012