Zobrazeno 1 - 10
of 61
pro vyhledávání: '"S. Mitobe"'
Publikováno v:
2012 IEEE International Ultrasonics Symposium.
The nonlinear elastic model for surface acoustic wave (SAW) duplexers we have proposed last year precisely simulates the frequency responses of the in-band 3rd order nonlinear distortion, `triple beat'. This result suggests that the main cause of the
Publikováno v:
2012 IEEE International Ultrasonics Symposium.
In general, surface acoustic wave (SAW) duplexers have the lower 3rd order linearity compared to bulk acoustic wave (BAW) duplexers. Actually, the specification for the inband 3rd order nonlinear distortion, triple beat, required for 1.9 GHz Personal
Autor:
Y. Satoh, Motoaki Hara, S. Mitobe, Masanori Ueda, Masafumi Iwaki, Hiroshi Nakamura, Jun Tsutsumi, Shogo Inoue
Publikováno v:
2011 IEEE International Ultrasonics Symposium.
Publikováno v:
IEEE transactions on ultrasonics, ferroelectrics, and frequency control. 54(10)
This paper proposes use of pitch-modulated interdigital transducers (IDTs) and reflectors for the realization of low-loss and wideband longitudinally coupled double-mode surface acoustic wave (DMS) filters. This technique offers drastic improvement o
Autor:
Y. Ebata, Satoru Matsuda, S. Mitobe, Yoshio Satoh, Koichi Wada, T. Matsuda, Shogo Inoue, M. Ueda
Publikováno v:
IEEE Ultrasonics Symposium, 2005..
Publikováno v:
IEEE Ultrasonics Symposium, 2004.
This paper proposes the use of pitch-modulated IDTs and reflectors for the realization of low-loss and wideband longitudinally coupled double-mode SAW (DMS) filters. This technique offers drastic improvement of the device performance through the intr
Autor:
T. Takezaki, H. Wachi, Y. Ebata, Satoshi Orito, S. Ichikawa, S. Mitobe, T. Ooura, M. Koshino, Koichi Wada, T. Tanaka
Publikováno v:
IEEE Symposium on Ultrasonics, 2003.
In digital terrestrial broadcasting system, adjacent high-level signals of coexistence analog system act as a spurious signal, which causes the generation of intermodulation and a bit error after digital demodulation. Therefore, a band pass filter wi
Publikováno v:
2002 IEEE Ultrasonics Symposium, 2002. Proceedings..
This paper describes for bulk suppression of SPUDT filter on LBO substrate. To suppress the bulk response, new advanced dual track filter is developed. The main track and sub track are identical structure, but phase-inversion each other. To prevent c
Publikováno v:
2002 IEEE Ultrasonics Symposium, 2002. Proceedings..
In mobile phone RF stages, the balanced SAW filter has assumed an important role. In order to suppress signal distortion, amplitude and phase imbalance are required to be reduced. This paper describes a new simulation modeling of balance performance.
Publikováno v:
Proceedings., IEEE Ultrasonics Symposium.
The performance of an IIDT (interdigitated interdigital transducer) filter using the acoustic-reflection cancel condition of the solid IDT is investigated for the substrate A1/128 degrees Y-X LiNbO/sub 3/. The acoustic reflection cancel condition is