Abstract
High data rate implantable wireless systems come with many challenges, chief among them being low power operation and high linearity. A low noise amplifier (LNA) designed for this application must include high gain, low noise figure (NF) and better linearity at low power consumption within the required frequency band. The down converter also requires a passive mixer to achieve low power and better linearity. In this paper, design is based on an Impulse Response (IR) Ultra-wideband (UWB) receiver operating at (3.1–5)GHz implemented in 0.25μm CMOS Silicon on Sapphire (SOS). This paper reports the design and measurement of a UWB receiver with a designed and measured linearity of 17dBm, a gain of 30.5dB and a minimum NF of 4.5dB, which make it suitable for implantable radio applications.
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