Results 231 to 240 of about 30,488 (265)
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Analysis of spurious modes suppressed on inverted mesa quartz resonators
2016 IEEE International Frequency Control Symposium (IFCS), 2016The application of etching methods to manufacture high-frequency quartz plates has increased in recent years. Such methods are able to produce thinner quartz components than traditionally cutting methods. The present study used finite element software to simulate quartz plates with different inverted mesa structures and peripheral electrode setups to ...
Zi-Gui Huang +3 more
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Design of microstrip bandpass filters with multiorder spurious-mode suppression
IEEE Transactions on Microwave Theory and Techniques, 2005This paper proposes a bandpass filter design method for suppressing spurious responses in the stopband by choosing the constitutive resonators with the same fundamental frequency, but staggered higher order resonant frequencies. The design concept is demonstrated by a four-pole parallel-coupled Chebyshev bandpass filter and a compact four-pole cross ...
Chen, Chi-Feng +2 more
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Appropriate Methods to Suppress Spurious FBAR Modes in Volume Production
2006 IEEE MTT-S International Microwave Symposium Digest, 2006Standards like CDMA in combination with the US PCS band impose challenging demands on the duplexer unit in the RF circuit of mobile phones. FBAR filters are candidates to fulfill the latest cutting-edge requirements for temperature stability, insertion loss, power durability, bandwidth, and filter skirts.
A. Link +5 more
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High-Q whispering gallery mode resonator filter with photonic bandgap spurious mode suppression
Proceedings of the 2000 IEEE/EIA International Frequency Control Symposium and Exhibition (Cat. No.00CH37052), 2002We demonstrate a novel bandpass filter constructed with a dielectric resonator operating in a whispering-gallery mode and a pair of photonic bandgap structured microstrip lines. The photonic bandgap structure is used to suppress the spurious modes around an intended transmission peak.
null Yu Ji, S. Yao, L. Maleki
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Shoaling vibration amplifier with flattened transfer function and suppressed spurious modes
2017 IEEE 30th International Conference on Micro Electro Mechanical Systems (MEMS), 2017An in-plane vibration sensor with off-resonant band-pass displacement amplification and a differential capacitive readout is presented. The minimum mechanical amplification of 16 dB (i.e. a factor of 6.6) within the designed frequency band from 3–13 kHz is independent of pressure in the range of 6.3 to 64 mbar with a less than 10% change.
Verena Maiwald +4 more
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Novel Periodically Loaded Slow Wave Transmission Line with Spurious Mode Suppression
2020 IEEE 17th India Council International Conference (INDICON), 2020A new slow wave structure has been proposed in this manuscript. Instead of loading the transmission line with open circuited stubs of uniform length, the stubs are varied in a geometric progressive manner. As a result, the physical length of a conventional slow wave transmission line is further reduced.
Anuj Kumar Sahoo, Karun Rawat
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Spurious mode suppression in SH0 Lithium Niobate laterally vibrating MEMS resonators
2015 IEEE International Electron Devices Meeting (IEDM), 2015This paper reports on the development of a spurious mode suppression technique for shear horizontal (SH0) mode Lithium Niobate (LiNbO3) laterally vibrating MEMS resonators. The method employs an optimized overlapping length between adjacent interdigitated electrodes to modify the presence of stress and electric field distribution in the resonator body,
Yong-Ha Song, Songbin Gong
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Techniques for suppressing spurious resonant modes in 1:3 composite transducers
IEEE 1991 Ultrasonics Symposium, 2002Conventional 1:3 composite transducers are composed of periodic arrays of fine piezoelectric ceramic pillars embedded in a polymer matrix. It is necessary to ensure that spurious interpillar (band-edge) resonant modes occur at high frequencies well separated from the practically useful thickness mode resonant mode.
J.A. Hossack, B.A. Auld, H.D. Batha
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IEEE Microwave and Guided Wave Letters, 2000
A method to solve the main resonance degeneration and the spurious mode problem for a cryogenic whispering gallery mode sapphire resonator (WGMSR) is reported. Two thin metal wires are deposited on top of the sapphire disk. With an appropriate choice of the relative radial direction and the orientation of these wires with respect to the coupling probe,
Di Monaco, O. +2 more
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A method to solve the main resonance degeneration and the spurious mode problem for a cryogenic whispering gallery mode sapphire resonator (WGMSR) is reported. Two thin metal wires are deposited on top of the sapphire disk. With an appropriate choice of the relative radial direction and the orientation of these wires with respect to the coupling probe,
Di Monaco, O. +2 more
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Spurious mode suppression in UHF micromecranical extensional wine-glass ring resonators
18th IEEE International Conference on Micro Electro Mechanical Systems, 2005. MEMS 2005., 2005A geometry-specific excitation configuration has been used to suppress all undesired spurious modes around the center frequencies of stand-alone micromechanical extensional wine-glass ring ("ext. WGR") resonators, previously demonstrated at frequencies up to 1.47-GHz with Q's > 2,000 as stated in Y. Xie et al. (2003).
null Yuan Xie +4 more
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