SPECTRUM SHAPING SAW FILTERS FOR HIGH-BIT-RATE DIGITAL RADIO

被引：6

作者：

GANSSPUCHSTEIN, R ^{[1
]}

RUPPEL, C ^{[1
]}

STOCKER, HR ^{[1
]}

机构：

[1] SIEMENS AG,SAW RES LAB,D-8000 MUNICH 83,FED REP GER

来源：

IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL | 1988年 / 35卷 / 06期

关键词：

Digital Communication Systems - Mathematical Techniques--Transfer Functions - Modems - Probability - Radio Interference--Crosstalk;

D O I：

10.1109/58.9323

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

The structure of a QAM radio system is explained. Some novel designs that demonstrate the current status of spectral shaping SAW (surface acoustic wave) filters are presented. Compensation of second-order effects is discussed. Experimental results for a filter for a 140-Mb/s 16 QAM cochannel system with a roll-off factor of 0.19 are shown. Two other examples of filters for a 140-Mb/s, 64 QAM system with a 35% relative bandwidth are also presented.

引用

页码：673 / 684

页数：12

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