Abstract
Modern wireless devices require a compact wireless receiver that can access all the available services with fewer bulky off-chip passive components. This advocates the need for multi-band multi-standard receivers. This paper proposes a reconfigurable such receiver front-end controlled by its driving clocks. The receiver adopts charge sampling and impedance translation techniques. Its driving clocks are adjusted based on the targeted frequency. The receiver is tested over the existing standards specifications: GSM 2G (850MHz, 900MHz, 1.8GHz and 1.9GHz), UMTS 3G (850MHz, 1.8GHz, 1.9GHz and 2.1GHz), Bluetooth (2.4GHz) and LTE (700MHz→5GHz) and Wi-Fi (2.4GHz and 5GHz). The proposed front-end architecture achieves NF of 8dB, out-of-band IIP3 of 0dBm and in-band IIP3 of −5dBm across the tested frequencies in 65nm CMOS technology. The design occupies 0.45mm2.
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