Microwave Photonic Frequency Translators With Large Spurious Suppression and Wide Bandwidth
IEEE Photonics Journal, 2021 Two new photonics-based microwave frequency translators are presented. They are based on Serrodyne modulation to frequency translate an optical carrier, which beats with a microwave signal sideband at a photodetector to generate a frequency translated ...
Chongjia Huang, Erwin H. W. Chan
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Lateral Spurious Mode Suppression in Lithium Niobate A1 Resonators [PDF]
IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 2021 This work presents an improved design that exploits dispersion matching to suppress the spurious modes in the lithium niobate first-order antisymmetric (A1) Lamb wave mode resonators. The dispersion matching in this work is achieved by micro-machining the lithium niobate thin film to balance the electrical and mechanical loadings of electrodes. In this
Yansong Yang +3 more
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Enhancement of Spurious Signal Suppression in Microstrip Mixers by Load Resistor Termination [PDF]
SensorsThe mixer is an essential component in RF transceiver subsystems. It has a role in shifting the signal frequency for more convenient processing of up-conversion as well as down-conversion.
Catur Apriono +4 more
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Strong Spurious Noise Suppression for an FMCW SAR [PDF]
Radioengineering, 2016 To meet the miniature requirement, a frequency modulated continuous wave synthetic aperture radar (FMCW SAR) puts tight constraint on the compactness, which causes the interference of narrow band noise.
H. Tian, W.G. Chang, X.Y. Li, Z.H. Liu
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The Suppression of Spurious Modes in TC-SAW Resonators by the Application of Bent Metal Strips [PDF]
SensorsThis article investigates the use of bent metal strips on the top of a SiO2 layer for the suppression of spurious modes in temperature-compensated surface acoustic wave (TC-SAW) resonators employing a SiO2/Cu/128°YX-LiNbO3 structure.
Menghui Li +6 more
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Compact and Wide Stopband Lowpass Filter Using Open Complementary Split Ring Resonator and Defected Ground Structure [PDF]
Radioengineering, 2015 A compact (0.16 λg x 0.08 λg) and wide stop¬band lowpass filter design using open complementary split ring resonator (OCSRR) and defected ground structure (DGS) is presented in this paper.
S. S. Karthikeyan, R. S. Kshetrimayum
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Edge treatment for spurious mode suppression in thin-film lithium niobate resonators [PDF]
Scientific ReportsThin-film lithium niobate is an attractive material for RF acoustic devices because of its high electromechanical coupling. However, due to the large coupling and the high anisotropy, thin-film lithium niobate resonators are prone to accidental ...
Arjun Aryal +4 more
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Theoretical Performance Evaluation of Spurious-Tone Suppression of a Multi-Loop Optoelectronic Oscillator Based on Closed-Loop Response Analysis [PDF]
Journal of Electromagnetic Engineering and Science, 2022 We theoretically evaluate the performance of spurious-tone suppression of a multi-loop optoelectronic oscillators (MOEO) based on closed-loop analysis. Spurious tones are unwanted oscillation signals due to the cavity effect of long-length optical fiber ...
Jun-Hyung Cho +3 more
doaj +1 more source
Photonics, 2022 In this study, the oscillation signal stabilization and spurious tone suppression of a directly modulated optoelectronic oscillator (DM-OEO) are simultaneously achieved by modulating a laser with a low-frequency radio frequency (RF) signal.
Jun-Hyung Cho +2 more
doaj +1 more source
Sensors, 2023 Surface acoustic wave resonators are widely applied in electronics, communication, and other engineering fields. However, the spurious modes generally present in resonators can cause deterioration in device performance.
Yulong Liu +6 more
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