FBAR Oscillator Stabilized by Rb Atomic Resonator for SHF/EHF-Band Wireless Devices

Motoaki Hara; Yuichiro Yano; Hiroyuki Ito; Masaya Toda; Takahito Ono; Masatoshi Kajita; Shinsuke Hara; Akifumi Kasamatsu; Tetsuya Ido

doi:10.1109/ULTSYM.2018.8579685

FBAR Oscillator Stabilized by Rb Atomic Resonator for SHF/EHF-Band Wireless Devices

Motoaki Hara, Yuichiro Yano, Hiroyuki Ito, Masaya Toda, Takahito Ono, Masatoshi Kajita, Shinsuke Hara, Akifumi Kasamatsu, Tetsuya Ido

ENG - Mechanical Systems Engineering

Research output: Contribution to journal › Conference article › peer-review

3 Citations (Scopus)

Abstract

We propose an FBAR oscillator for the wireless system used in the superhigh-frequency (SHF) band or extremely high-frequency (EHF) band. At these frequencies, a high-precision standard clock is required, and it is preferable that the clock frequency be set to a GHz-order band to mitigate the amount of frequency multiplication. In this study, we developed a 3.5 GHz band thin-film bulk acoustic resonator (FBAR)oscillator and stabilized it to the hyperfine transition of alkali atoms ⁸⁷ Rb. Consequently, a short-term frequency instability of 8.5 × 10- ¹² at 1s was achieved.

Original language	English
Article number	8579685
Journal	IEEE International Ultrasonics Symposium, IUS
Volume	2018-January
DOIs	https://doi.org/10.1109/ULTSYM.2018.8579685
Publication status	Published - 2018 Jan 1
Event	2018 IEEE International Ultrasonics Symposium, IUS 2018 - Kobe, Japan Duration: 2018 Oct 22 → 2018 Oct 25

Keywords

FBAR
hyper fine transition
oscillator

ASJC Scopus subject areas

Acoustics and Ultrasonics

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FBAR Oscillator Stabilized by Rb Atomic Resonator for SHF/EHF-Band Wireless Devices. / Hara, Motoaki; Yano, Yuichiro; Ito, Hiroyuki; Toda, Masaya ; Ono, Takahito; Kajita, Masatoshi; Hara, Shinsuke; Kasamatsu, Akifumi; Ido, Tetsuya.

In: IEEE International Ultrasonics Symposium, IUS, Vol. 2018-January, 8579685, 01.01.2018.

Research output: Contribution to journal › Conference article › peer-review

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AU - Toda, Masaya

AU - Ono, Takahito

AU - Kajita, Masatoshi

AU - Hara, Shinsuke

AU - Kasamatsu, Akifumi

AU - Ido, Tetsuya

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AB - We propose an FBAR oscillator for the wireless system used in the superhigh-frequency (SHF) band or extremely high-frequency (EHF) band. At these frequencies, a high-precision standard clock is required, and it is preferable that the clock frequency be set to a GHz-order band to mitigate the amount of frequency multiplication. In this study, we developed a 3.5 GHz band thin-film bulk acoustic resonator (FBAR)oscillator and stabilized it to the hyperfine transition of alkali atoms 87 Rb. Consequently, a short-term frequency instability of 8.5 × 10- 12 at 1s was achieved.

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