2019 IEEE International Ultrasonics Symposium (IUS) 2019

DOI: 10.1109/ultsym.2019.8926223

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STW Resonators with the High Quality Factor and Reduced Sizes

S. A. Doberstein¹,

I. V. Veremeev²

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Cited by 3 publications

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USE OF THE SURFACE TRANSVERSE WAVES (STW) – ONE OF EFFICIENT METHODS FOR ENHANCEMENT OF THE SAW DEVICES OPERATING FREQUENCIES

¹

,

²

,

et al. 2020

Radio Communication Technology

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This paper presents an efficient method for enhancement of the operating frequen-cies of the SAW devices - use of surface transverse waves (STW) with high propa-gation velocity V = 5000 m/s on a standard piezomaterial quartz. The approaches for a realization of the STW resonators with the high quality factor and STW filters with the low insertion loss were considered. The quantitative and qualitative char-acteristics of above 1 GHz STW devices for each approach were given.

USE OF THE SURFACE TRANSVERSE WAVES (STW) – ONE OF EFFICIENT METHODS FOR ENHANCEMENT OF THE SAW DEVICES OPERATING FREQUENCIES

¹

,

²

,

et al. 2020

Radio Communication Technology

View full text Add to dashboard Cite

This paper presents an efficient method for enhancement of the operating frequen-cies of the SAW devices - use of surface transverse waves (STW) with high propa-gation velocity V = 5000 m/s on a standard piezomaterial quartz. The approaches for a realization of the STW resonators with the high quality factor and STW filters with the low insertion loss were considered. The quantitative and qualitative char-acteristics of above 1 GHz STW devices for each approach were given.

FREQUENCY TRIMMING OF THE STW RESONATORS WITH WORKING FREQUENCY UP TO 1 GHZ

2021

Radio Communication Technology

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RESEARCH OF METHODS FOR DECREASE OF THE CAPACITANCE RATIO IN THE STW-RESONATORS

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2021

Radio Communication Technology

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This paper presents the research of methods for decrease of the capacitance ratio in the STW-resonators without significant degradation of the quality factor by use of the external inductors and topology change: IDT division on parts and their series connection. The calculated and experimental data are presented for 416 MHz and 766 MHz STW-resonators with quality factors Q = 7000–7978. The capacitance ratio has been reduced from 1200 to 301.

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