An FTNC Receiver with +32.5dBm Effective OB-IIP3 Using Baseband IM3 Cancellation: RFIC Interactive Forum 2017

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An IM3 cancellation technique is proposed and implemented in a 65nm CMOS 0.52.5GHz FTNC (frequency translational noise-cancelling) receiver with a wideband auxiliary path which also offers wideband interferer awareness. It achieves 8.8MHz BB BW, 40dB conversion gain, 3.3dB NF, +5dBm OB-IIP3, and 6.5dBm OB-B1dB without IM3 cancellation while consuming 36mW at 1.2V. Using IM3 cancellation, the equivalent OB-IIP3 for two-tone interferers is up to +32.5dBm with an extra 34mW of power consumption. For two 15dBm modulated interferers 18.8dB cancellation is demonstrated over 10MHz.

An IM3 cancellation technique is proposed and implemented in a 65nm CMOS 0.52.5GHz FTNC (frequency translational noise-cancelling) receiver with a...

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