Results 111 to 120 of about 316 (158)
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3D simulation of thin-film bulk acoustic wave resonators (FBAR)
2006 13th IEEE International Conference on Electronics, Circuits and Systems, 2006This article discusses numerical simulations of thin film bulk acoustic wave resonators. FBAR simulation with 1D analytical model permits to quickly determine resonator layers thickness that correspond to the objective resonant frequency. 3D finite element method permits to investigate the effect of the electrode shape on the spurious modes that are ...
Sylvain Giraud +3 more
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Film Bulk Acoustic-Wave Resonator (FBAR) based ultraviolet sensor
TRANSDUCERS 2009 - 2009 International Solid-State Sensors, Actuators and Microsystems Conference, 2009This paper described ultraviolet (UV) radiation sensing using ZnO based Film Bulk Acoustic-wave Resonator (FBAR). The resonant frequency upshifted when there was UV illumination on the FBAR. For 365 nm UV light, the frequency upshift was 9.8 kHz with an intensity of 600 µW/cm2, and the detection limit of the sensor was 6.5 nW. The frequency increase of
Hongyu Yu
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A film bulk acoustic resonator (FBAR) duplexer for USPCS handset applications
2001 IEEE MTT-S International Microwave Sympsoium Digest (Cat. No.01CH37157), 2002We will describe the design and measured performance of a duplexer based on film bulk acoustic resonators (FBARs) for the 1900 MHz PCS cellular phone market. Typical specifications for the duplexer require the Tx filter to attenuate frequencies in the Rx band by >40 dB while maintaining a worst-case insertion loss of 3.5 dB over the Tx band.
P. Bradley +4 more
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Study of structural fabrication process of Film Bulk Acoustic Resonator (FBAR)
2008 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications, 2008Thin film bulk acoustic resonator, grown based on the MEMS fabrication technology simultaneously, has become one of the most positive devices within the area of wireless communication application. FBAR has such distinct advantages as higher frequency, smaller volume, better power handling capabilities, higher Q-values and well compatibility with IC ...
Guang-jun Huang +4 more
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Design and simulation of Film Bulk Acoustic Wave Resonator (FBAR) Gas Sensor Based on ZnO Thin Film [PDF]
2019 IEEE Regional Symposium on Micro and Nanoelectronics (RSM), 2019 The interest in miniature device has led to the development of thin film bulk acoustic wave resonator (FBAR). The function of a resonator to gain a high resonant frequency value of an equipment make FBAR is suitable to act as sensor and filter for wide range of applications.
Aliza Aini Md Ralib, Jamilah Karim
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Thin film bulk wave acoustic resonators (FBAR) for wireless applications
2001 IEEE Ultrasonics Symposium. Proceedings. An International Symposium (Cat. No.01CH37263), 2002For some time, FBAR technology has lagged behind ceramic technology and surface acoustic wave resonator (SAW) technology for commercial applications. There were several technologies that had to be developed before FBAR technology became viable for rf filters. First, a process is needed that can make the resonators manufacturable, robust and repeatable.
R.C. Ruby +4 more
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IEEE Transactions on Microwave Theory and Techniques, 2020
A hybrid wideband filter composed of two sections with sharp frequency selectivity is proposed in this article. The first section consists of a coupled line (CL), two transmission lines (TL), and a film bulk acoustic resonator (FBAR) with lower frequency. This section mainly controls the lower roll-off.
Haopeng Wu, Yongle Wu, Zhiguo Lai
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A hybrid wideband filter composed of two sections with sharp frequency selectivity is proposed in this article. The first section consists of a coupled line (CL), two transmission lines (TL), and a film bulk acoustic resonator (FBAR) with lower frequency. This section mainly controls the lower roll-off.
Haopeng Wu, Yongle Wu, Zhiguo Lai
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Optimization on Thin Film Bulk Acoustic Resonator (FBAR) by Transmitting Line Method
Advanced Materials Research, 2012In this paper, the transmitting line method is applied to analyze the properties of FBAR, and the input impedance equation is obtained, and the series resonance frequency fsand the parallel resonance frequency fpare calculated by this method. Moreover, the elastic effects of the electrode on the effective electromechanical coupling factor, k2eff, and ...
Tao Zhang +4 more
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Film bulk acoustic resonator (FBAR) device
The Journal of the Acoustical Society of America, 2005Disclosed are a film bulk acoustic resonator (FBAR) device and a method for fabricating the film bulk acoustic resonator (FBAR) device. The film bulk acoustic resonator (FBAR) device comprises a membrane layer having a plurality of active regions and provides different resonant frequencies by providing different thicknesses of the active regions of ...
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Tunable Resonator Using Film Bulk Acoustic Resonator (Fbar)
The Journal of the Acoustical Society of America, 2011A tunable resonator is provided. The tunable resonator includes a film bulk acoustic resonator (FBAR) for performing a resonance, and at least one driver which is arranged at a side of the FBAR and is deformed and brought into contact with the FBAR by an external signal, thereby changing a resonance frequency of the FBAR.
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