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This work proposes low noise amplifier (LNA) and local oscillator (LO) co-design considerations for low intermediate frequency (IF) receivers (RX) in the Medical Device Radiocommunication (MedRadio) band (401-406 MHz), which is used for biomedical applications. Supported with the analysis, proposed considerations are the experimental outcomes of measurements and characterization of fabricated ICs,...
This work presents a review of advancements made in the areas of bio-telemetry and bio-instrumentation for healthcare applications, especially for remote health monitoring in developing nations. This paper presents a comprehensive study of suitable wireless, analog and RF IC technologies, their challenges and limitations, recent researches and future directions in these areas. As an outcome of this...
This work presents a low power injection locked on-off keying (OOK) transmitter (TX) for the Medical Device Radio (MedRadio) communication band (401–406 MHz), which is suitable for health care applications. The TX is based upon a surface acoustic wave resonator (SAWR) oscillator, which directly generates a stable RF signal at 403.6 MHz and completely removes the power hungry frequency multiplying...
This work presents design and practical techniques to measure specifications of a low noise amplifier (LNA) in a complete receiver chain at Medical Device Radio Communication (MedRadio) band in 401–406 MHz frequency range. Supported by detailed quantitative explanations, the proposed measurement methods help in characterizing the LNA without duplicating it on the chip only for the characterization...
In this paper a balanced CMOS operational amplifier which has higher electromagnetic interference (EMI) immunity compared to a double differential amplifier and standard Miller operational amplifier, has been introduced. The proposed amplifier has better EMI immunity, from 1 MHz – 1 GHz, by keeping specifications such as gain, −3 dB bandwidth, phase margin, power supply rejection and unity gain frequency...
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