Modeling, Design and Optimization Methodology of a Low Power UWB Mixer in 0.18µm CMOS Technology

Neifar, Amel; Bouzid, Ghazi; Masmoudi, Mohamed

doi:10.15866/iremos.v8i3.6002

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Up-conversion Mixer1

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2016

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“…12 Schematic of the power amplifier addition to the advantages of high quality port-to-port isolation. To ensure an optimum design ofthe mixer components,a graphical optimization methodology has been applied in [12]. As both gain and linearity would improve if the bias current increased, a method of injection in the required bias current was introduced.…”

Section: Up-conversion Mixermentioning

confidence: 99%

Three to Five Gigahertz UWB Transmitter for Vital Sign Monitoring Systems

2016

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This paper describes an on-off ring oscillatorbased multiband ultra-wideband transmitter for vital sign monitoring applications. A thorough analysis of the pulse generation is provided followed by a description of the oscillator, the mixer, and the AB-class power amplifier. Designed in a 0.18-μm CMOS, the transmitter works in the UWB lower band of 3-5 GHz and consumes a low power of 7.8 mW at 50 MHz pulse repetition frequency, under 1.8-V power supply. The transmitter delivers a differential output swing of 0.64 V under 100-Ω load with the highest power efficiency of 37.6 pJ.

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Section: Up-conversion Mixermentioning

confidence: 99%