The Use Of Homodyne Detection For Measuring Small Frequency Differences Between Two Rf Oscillators
ADVANCED TOPICS IN OPTOELECTRONICS, MICROELECTRONICS AND NANOTECHNOLOGIES X(2020)
摘要
In this paper we present an experimental set-up for measuring small frequency differences between two RF oscillators [1] by using a homodyne detection scheme [2]. To emulate the oscillators, we used two RF sources whose output signals were mixed and then the low frequency components at the mixer's output was measured with a network frequency analyzer. The purpose of these experiments was to evaluate a possible method to discriminate the resonance frequency change of a TF-BAR sensor as a response to its contamination with certain substances.
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关键词
homodyne detection, Thin-Film Bulk Acoustic Wave Resonator (TF-BAR), sensors and integrated electronics and photonic systems, security of critical infrastructures, frequency deviation, MEMS Reference Oscillators, RF oscillators
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