The use of homodyne detection for measuring small frequency differences between two RF oscillators

F. Vasile; A. Craciun; M. Vladescu; P. Schiopu; V. Feies; N. Codreanu; S. Ionita; M. Raducu

doi:10.1117/12.2571200

31 December 2020 The use of homodyne detection for measuring small frequency differences between two RF oscillators

F. Vasile, A. Craciun, M. Vladescu, P. Schiopu, V. Feies, N. Codreanu, S. Ionita, M. Raducu

Proceedings Volume 11718, Advanced Topics in Optoelectronics, Microelectronics and Nanotechnologies X; 117181A (2020) https://doi.org/10.1117/12.2571200
Event: Advanced Topics in Optoelectronics, Microelectronics and Nanotechnologies 2020, 2020, Online Only

Abstract

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.

Citation Download Citation

F. Vasile, A. Craciun, M. Vladescu, P. Schiopu, V. Feies, N. Codreanu, S. Ionita, and M. Raducu "The use of homodyne detection for measuring small frequency differences between two RF oscillators", Proc. SPIE 11718, Advanced Topics in Optoelectronics, Microelectronics and Nanotechnologies X, 117181A (31 December 2020); https://doi.org/10.1117/12.2571200

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