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The local oscillator harmonics corrupt the desired signal in broadband RF receivers by downconverting interferers. This paper proposes the notion of harmonic rejection in the front-end low-noise amplifier so as to relax the stringent matching required of harmonic-reject mixers. Described are frequency response shaping techniques by feedforward and unilateral Miller capacitance multiplication for a signal bandwidth of 100 MHz to 10 GHz. A calibration algorithm is also proposed for the tuning of the frequency response. An experimental prototype fabricated in 65-nm digital CMOS technology provides at least 20 dB of rejection while consuming 8.64 mW with a 1.2-V supply.