Journal ArticleDOI
1.86 GHz SAW Filter
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TLDR
Using the third order harmonic wave of Sezawa-mode which propagates in ZnO films epitaxially deposited on R-plane sapphire, high performance filter which is a low insertion loss of 9 dB at 1.86 GHz has been realized as discussed by the authors.Abstract:
Using the third order harmonic wave of Sezawa-mode which propagates in ZnO films epitaxially deposited on R-plane sapphire, high performance filter which is a low insertion loss of 9 dB at 1.86 GHz has been realized.read more
Citations
More filters
Journal ArticleDOI
Theoretical study on SAW characteristics of layered structures including a diamond layer
H. Nakahata,Akihiro Hachigo,Kenjiro Higaki,Satoshi Fujii,S. Shikata,Naoji C O Itami Works Fujimori +5 more
TL;DR: In this article, a theoretical analysis of the SAW properties of layered structures consisting of a piezoelectric material layer, a diamond layer and a substrate were examined by theoretical calculation, and it was shown that a SiO/sub 2/ZnO/diamond/Si structure with a high phase velocity of 8,000-9,000 m/s and a large electro-mechanical coupling coefficient of up to 4%.
Proceedings ArticleDOI
SAW devices on diamond
H. Nakahata,Kenjiro Higaki,Satoshi Fujii,Akihiro Hachigo,Hiroyuki Kitabayashi,Keiichiro Tanabe,Y. Seki,S. Shikata +7 more
TL;DR: In this paper, a 2.5 GHz filter was fabricated with 1 /spl mu/m line-and-space IDTs with the ZnO/IDT/diamond/Si structure.
Proceedings ArticleDOI
High frequency surface acoustic wave filter using ZnO/diamond/Si structure
TL;DR: In this article, the surface acoustic wave (SAW) characteristics in a ZnO/diamond/Si structure were studied using theoretical calculations and a high-frequency SAW filter with much larger scale interdigital transducers (IDTs) was fabricated.
Proceedings ArticleDOI
Microwave low insertion loss SAW filter by using ZnO/sapphire substrate with Ni dopant
TL;DR: In this article, a low insertion loss SAW filter is realized by using ZnO epitaxial films on a sapphire substrate, which is carefully determined to realize low propagation loss and high stability.
Proceedings ArticleDOI
A High Velocity and Wideband SAW on a Thin LiNbO 3 Plate Bonded on a Si Substrate in the SHF Range
Tetsuya Kimura,Masashi Omura,Yutaka Kishimoto,Haruki Kyoya,Masakazu Mimura,Hiromu Okunaga,Ken-ya Hashimoto +6 more
TL;DR: In this paper, a thin piezoelectric crystal plate, interdigital transducers placed on the plate, and an acoustic mirror bonded on a silicon substrate is described for the super high frequency (SHF) range.