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.

引用

页码：2678 / 2682

页数：5