TY - JOUR
T1 - Band-pass-type tunable filter using surface acoustic wave resonator composed of grooved Cu electrodes on LiNbO 3
AU - Kadota, Michio
AU - Ida, Yasuyuki
AU - Kimura, Tetsuya
PY - 2012/7
Y1 - 2012/7
N2 - The authors reported band-pass (BP)-type tunable filters composed of ultrawide band (17%) surface acoustic wave (SAW) resonators composed of grooved Cu electrodes on 4°YX-LiNbO 3 and interdigital capacitors (IDCs) on the same LiNbO 3 substrate. However, the frequency of the tunable filter did not shift continuously because the capacitance of the IDCs was fixed. This time, the tunable filter with the frequency tunable range of 6.1% shifting continuously was obtained for the first time by applying voltage to the variable capacitance diode. The authors discuss the mechanical quality factor (Q) of variable capacitors and characteristics of the tunable filters.
AB - The authors reported band-pass (BP)-type tunable filters composed of ultrawide band (17%) surface acoustic wave (SAW) resonators composed of grooved Cu electrodes on 4°YX-LiNbO 3 and interdigital capacitors (IDCs) on the same LiNbO 3 substrate. However, the frequency of the tunable filter did not shift continuously because the capacitance of the IDCs was fixed. This time, the tunable filter with the frequency tunable range of 6.1% shifting continuously was obtained for the first time by applying voltage to the variable capacitance diode. The authors discuss the mechanical quality factor (Q) of variable capacitors and characteristics of the tunable filters.
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U2 - 10.1143/JJAP.51.07GC14
DO - 10.1143/JJAP.51.07GC14
M3 - Article
AN - SCOPUS:84864694578
VL - 51
JO - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
JF - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
SN - 0021-4922
IS - 7 PART2
M1 - 07GC14
ER -