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Designing a Low Power Receiver for Medical Implant Communications Service
, M.Sc. Thesis Sharif University of Technology ; Safarian, Amin Ghasem (Supervisor)
Abstract
One of the most important parameters of implanted chip in body is its ability to work for a long time without the need for battery change. Hence designing radio frequency transceivers used in these chips should be done with the lowest possible power consumption. Of course it should be noticed that for correct communication, standard specifications must be meeted. In this thesis, a receiver in medical implant communication service standard with the goal of minimal power consumption is designed. In circuit design different challenges such as low inductor quality factor, threshold voltage of transistors and usual trade-offs between receiver parameters are faced. Therefore, previous used...
Designing a Low Power Transmitter for Medical Implant Communications Service
, M.Sc. Thesis Sharif University of Technology ; Safarian, Aminghasem (Supervisor)
Abstract
One of the most important parameters of an implanted device in the human body is its ability to operate for a long time to decrease the need for surgery in order to replace the battery. Therefore, the radio transceivers in these devices are designed in such a way to reduce the power consumption as much as possible. But, at the same time, it is crucial that the bit error rate be as small as possible to decrease the number of incorrect sent and received bits. Thus, the phase noise should also be as small as possible in order to reduce the bit error rate. In this thesis, a transmitter has been designed for Medical Implant Communications Service standard. In order to reduce the power...
Low power receiver with merged N-path LNA and mixer for MICS applications
, Article AEU - International Journal of Electronics and Communications ; Volume 117 , 2020 ; Safarian, A ; Sharif University of Technology
Elsevier GmbH
2020
Abstract
In this paper, a low power receiver for medical implant communication service (MICS) is presented. Low power design is vital in the MICS applications since the implanted chip has to work for a long time without the need to change its battery. As a result, a merged N-path low noise amplifier (LNA) and mixer block is proposed. In this structure, the LNA and down-conversion mixer share a transconductance to lower the overall power consumption. An N-path feedback is utilized around the shared transconductance not only to improve the LNA selectivity and relax the linearity requirements but also to downconvert the radio frequency (RF) component and create the intermediate frequency (IF) signal. In...