1.5 GHZ LOW-LOSS SURFACE-ACOUSTIC-WAVE FILTER USING ZNO/SAPPHIRE SUBSTRATE

被引：51
作者：
KOIKE, J
SHIMOE, K
IEKI, H
机构：
[1] Murata Manufacturing Co. Ltd., Kyoto
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 1993年 / 32卷 / 5B期
关键词：
ZNO/SAPPHIRE; SEZAWA WAVE; IIDT; REFLECTOR; RF STAGE; DIGITAL CELLULAR SYSTEM; LOW INSERTION LOSS;
D O I：
10.1143/JJAP.32.2337
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
A 1.5 GHz range low insertion loss surface acoustic wave (SAW) filter has been developed using a ZnO/sapphire substrate and IIDT-type electrodes with two external reflectors. This filter had an insertion loss of 1.3 dB, stop-band attenuation of greater than 30 dB and matching impedance of 50 OMEGA pure resistivity without external matching networks. This filter has the smallest insertion loss of all transverse-type GHz-range SAW filters reported previously and it is suitable for use as a RF-stage filter for future 1.5 GHz range Japanese digital cellular systems.
引用
收藏
页码：2337 / 2340
页数：4
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