Ofir B. Degani

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A switched-capacitor power amplifier (SCPA) that realizes an envelope elimination and restoration/polar class-G topology is introduced. A novel voltage-tolerant switch enables the use of two power supply voltages which increases efficiency and output power simultaneously. Envelope digital-to-analog conversion in the polar transmitter is achieved using an SC(More)
A 3-stream, 802.11n WLAN MIMO transceiver, with fully integrated PAs and LNAs in both 2.4GHz and 5GHz bands, and a T/R switch in the 2.4GHz band, was implemented in a standard 90nm CMOS technology. The transmitter achieves an EVM of -28dB at output power of 19dBm and 17dBm in the 2.4GHz and 5GHz bands, respectively. The transmitter power consumption per Mb(More)
A three stage single-ended LNA using transformer (TF) matching and gain-boosting by capacitive feedback for wideband operation in the 57-66GHz band is presented. The LNA, fabricated in a 65nm standard CMOS process, achieves a 23dB-gain 4dB NF at 6mA and 1.25V supply, with 2dBm P<sub>sat</sub> and 0.05mm<sup>2</sup> in size, demonstrating best reported noise(More)
This paper describes the modeling and design considerations of a low-power divide-by-two injection-locked frequency divider (ILFD) for 60GHz frequency synthesizer applications implemented in 90nm CMOS process. The paper proposes a divider's locking range model based on mixing analysis. The design uses a capacitor bank for the divider band selection and tail(More)