QUASI-MICROWAVE BAND LONGITUDINALLY COUPLED SURFACE-ACOUSTIC-WAVE RESONATOR FILTERS USING ZNO/SAPPHIRE SUBSTRATE

被引：31
作者：
KOIKE, J
TANAKA, H
IEKI, H
机构：
[1] Murata Manufacturing Co., Ltd., Kyoto, 617, Nagaokakyo-shi
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 1995年 / 34卷 / 5B期
关键词：
ZNO/SAPPHIRE; LONGITUDINALLY COUPLED SAW RESONATOR FILTER; PDC SYSTEM; WIRELESS LAN; QUASI-MICROWAVE;
D O I：
10.1143/JJAP.34.2678
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The 1.5 and 2.4 GHz range 5IDT-type longitudinally coupled surface acoustic wave (SAW) resonator filters have been developed using ZnO/sapphire substrate. The 1.5 GHz range SAW filter has the minimum insertion loss of 1.0 dB and the relative bandwidth of 2.4% at the insertion loss of 3 dB. The 2.4 GHz range SAW filter has the minimum insertion loss of 1.7 dB and the relative bandwidth of 1.7% at the insertion loss of 3 dB. These filters are suitable for use as RF-stage filters in a personal digital cellular (PDC) system terminal and a wireless local area network (LAN) adapter, respectively.
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页码：2678 / 2682
页数：5
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