Band pass type of tunable filters composed of ultra wide band SAW resonators by adjusting capacitors connected SAW resonators

Michio Kadota; Yasuyuki Ida; Tetsuya Kimura

doi:10.1109/ULTSYM.2011.0135

Band pass type of tunable filters composed of ultra wide band SAW resonators by adjusting capacitors connected SAW resonators

Michio Kadota, Yasuyuki Ida, Tetsuya Kimura

ENG - Robotics

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

4 Citations (Scopus)

Abstract

Authors realized a one port surface acoustic wave (SAW) resonator composed of grooved-Cu- electrodes/4°Y-X· LiNbO ₃ with an ultra wide bandwidth of 17 %. This time, the authors fabricated band pass type tunable filters using the SAW resonators instead of inductances and 2 kind of capacitors of interdigital capacitors (IDCs) and Si-diode variable capacitors. As a the result, when the IDCs were used, the tunable filter with the frequency tunable range of 6.8 % has been obtained by using 3 kinds of LiNbO ₃ substrates having different capacitances of IDCs and the same designed SAW resonators. On the other hand, when the Si-diode variable capacitors were used, by applying the voltage of 1.2 V to 10 V to the Si variable capacitors (Toshiba JDV2S71E) in order to adjust the capacitance, a tunable filter with the frequency tunable range of 6.1% has been continuously obtained for the first time.

Original language	English
Title of host publication	2011 IEEE International Ultrasonics Symposium, IUS 2011
Pages	559-562
Number of pages	4
DOIs	https://doi.org/10.1109/ULTSYM.2011.0135
Publication status	Published - 2011 Dec 1
Event	2011 IEEE International Ultrasonics Symposium, IUS 2011 - Orlando, FL, United States Duration: 2011 Oct 18 → 2011 Oct 21

Other

Other	2011 IEEE International Ultrasonics Symposium, IUS 2011
Country	United States
City	Orlando, FL
Period	11/10/18 → 11/10/21

ASJC Scopus subject areas

Acoustics and Ultrasonics

Access to Document

10.1109/ULTSYM.2011.0135

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Kadota, M, Ida, Y & Kimura, T 2011, Band pass type of tunable filters composed of ultra wide band SAW resonators by adjusting capacitors connected SAW resonators. in 2011 IEEE International Ultrasonics Symposium, IUS 2011., 6293071, pp. 559-562, 2011 IEEE International Ultrasonics Symposium, IUS 2011, Orlando, FL, United States, 11/10/18. https://doi.org/10.1109/ULTSYM.2011.0135

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title = "Band pass type of tunable filters composed of ultra wide band SAW resonators by adjusting capacitors connected SAW resonators",

abstract = "Authors realized a one port surface acoustic wave (SAW) resonator composed of grooved-Cu- electrodes/4°Y-X· LiNbO 3 with an ultra wide bandwidth of 17 %. This time, the authors fabricated band pass type tunable filters using the SAW resonators instead of inductances and 2 kind of capacitors of interdigital capacitors (IDCs) and Si-diode variable capacitors. As a the result, when the IDCs were used, the tunable filter with the frequency tunable range of 6.8 % has been obtained by using 3 kinds of LiNbO 3 substrates having different capacitances of IDCs and the same designed SAW resonators. On the other hand, when the Si-diode variable capacitors were used, by applying the voltage of 1.2 V to 10 V to the Si variable capacitors (Toshiba JDV2S71E) in order to adjust the capacitance, a tunable filter with the frequency tunable range of 6.1% has been continuously obtained for the first time.",

author = "Michio Kadota and Yasuyuki Ida and Tetsuya Kimura",

year = "2011",

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doi = "10.1109/ULTSYM.2011.0135",

language = "English",

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booktitle = "2011 IEEE International Ultrasonics Symposium, IUS 2011",

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AU - Kadota, Michio

AU - Ida, Yasuyuki

AU - Kimura, Tetsuya

PY - 2011/12/1

Y1 - 2011/12/1

N2 - Authors realized a one port surface acoustic wave (SAW) resonator composed of grooved-Cu- electrodes/4°Y-X· LiNbO 3 with an ultra wide bandwidth of 17 %. This time, the authors fabricated band pass type tunable filters using the SAW resonators instead of inductances and 2 kind of capacitors of interdigital capacitors (IDCs) and Si-diode variable capacitors. As a the result, when the IDCs were used, the tunable filter with the frequency tunable range of 6.8 % has been obtained by using 3 kinds of LiNbO 3 substrates having different capacitances of IDCs and the same designed SAW resonators. On the other hand, when the Si-diode variable capacitors were used, by applying the voltage of 1.2 V to 10 V to the Si variable capacitors (Toshiba JDV2S71E) in order to adjust the capacitance, a tunable filter with the frequency tunable range of 6.1% has been continuously obtained for the first time.

AB - Authors realized a one port surface acoustic wave (SAW) resonator composed of grooved-Cu- electrodes/4°Y-X· LiNbO 3 with an ultra wide bandwidth of 17 %. This time, the authors fabricated band pass type tunable filters using the SAW resonators instead of inductances and 2 kind of capacitors of interdigital capacitors (IDCs) and Si-diode variable capacitors. As a the result, when the IDCs were used, the tunable filter with the frequency tunable range of 6.8 % has been obtained by using 3 kinds of LiNbO 3 substrates having different capacitances of IDCs and the same designed SAW resonators. On the other hand, when the Si-diode variable capacitors were used, by applying the voltage of 1.2 V to 10 V to the Si variable capacitors (Toshiba JDV2S71E) in order to adjust the capacitance, a tunable filter with the frequency tunable range of 6.1% has been continuously obtained for the first time.

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