Design of a high gain filter system for Marker Locator

by Han Zhang

Institution: Mid Sweden University
Year: 2015
Keywords: high gain; band pass filter system; small signal detection/amplification; Filter Pro; LT-Spice-IV; Multisim 12; active filter system design; Engineering and Technology; Teknik och teknologier; Engineering and Technology; Electrical Engineering, Electronic Engineering, Information Engineering; Other Electrical Engineering, Electronic Engineering, Information Engineering; Teknik och teknologier; Elektroteknik och elektronik; Annan elektroteknik och elektronik; Internationellt kandidatprogram i elektronik TIELG 180 hp; International Bachelor's Programme in Electronics TIELG 180 higher education credits; Elektronik EL1; Electronics EL1
Record ID: 1346780
Full text PDF: http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-25021


This paper introduces a high-gain, low-noise band-pass filter system for detection/amplification of small signals. In addition, related theory and methodology are described for a specific design implementation. Simulation and experimental results are presented and discussed. The purpose of the implemented design was to construct a band-pass filter system with 102 dB gain and with an output noise level of less than 0.8V. The design of the high-gain band-pass filter system was achieved mainly with the help of Filter Pro, LTSpice IV, and Multisim 12. The thesis provides important support for the project Marker Locator and constitutes a valuable reference for future active filter system design and small signal detection/amplification.