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We present the design and implementation of linear-phase delay filters for ultra-low power neural signal processing. The filters are intended to implement a low-distortion delay element for automatic biopotential detection in neural recording implants. Continuous-time OTA-C filters are used to realize a 9th-order equiripple transfer function presenting a constant group delay. This analog delay allows...
We present a method to automatically match a system to the load variation accurately with a very short matching time for ultra low power medical applications. A demonstrator was fabricated and an experimental set-up in the medical implant communication system (MICS) frequency band of 402-405 MHz was realized including a pacemaker antenna prototype immersed on a homogeneous lossy liquid. The matching...
This paper presents the performance of a wideband 0.13 mum BiCMOS SiGe power amplifier (PA) for millimeter wave (mmW) applications. The design and the measured results of a monolithic integrated low-voltage PA are reported. A balanced four-stage common emitter circuit topology was used to achieve greater than 17 dB of power gain from 59 GHz to 71 GHz. As a result, the amplifier delivers 18 dBm of...
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