Spread Spectrum Orthogonal Frequency Coded SAW Tags and Sensors Using Harmonic Operation

被引：8

作者：

Gallagher, Daniel R. ^{[1
]}

Gallagher, Mark W. ^{[1
]}

Saldanha, Nancy ^{[1
]}

Pavlina, John M. ^{[1
]}

Malocha, Donald C. ^{[1
]}

机构：

[1] Univ Cent Florida, Coll Elect Engn & Comp Sci, Orlando, FL 32816 USA

来源：

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES | 2010年 / 58卷 / 03期

基金：

美国国家航空航天局;

关键词：

Acoustic devices; harmonic generation; microsensors; multisensor systems; orthogonal frequency coding (OFC); sensors; spread spectrum communication; surface acoustic waves (SAWs); SAW devices;

D O I：

10.1109/TMTT.2010.2040347

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper presents a preliminary investigation of orthogonal frequency coding (OFC) surface acoustic wave tags and sensors at a 500- and 900-MHz operational frequency range using conventional contact lithography techniques. The higher frequency devices are achieved using second harmonic operation; eliminating the need for advanced lithography techniques. The objective of this effort is to increase the technology readiness level of wideband OFC tags at higher frequencies. Measured device results are presented and compared with coupling of modes model predictions to demonstrate performance. The fundamental and harmonic device response is compared for devices designed for operation in the 900-MHz frequency band. The experimental correlation against an ideal matched filter is also presented.

引用

页码：674 / 679

页数：6

共 7 条

[1]

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[2]

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[3] Spread Spectrum Orthogonal Frequency Coded SAW Tags and Sensors using Harmonic Operation [J].

Gallagher, Daniel R. ;

Gallagher, Mark W. ;

Saldanha, Nancy ;

Pavlina, John M. ;

Malocha, Donald C. .

2009 IEEE/MTT-S INTERNATIONAL MICROWAVE SYMPOSIUM, VOLS 1-3, 2009, :105-108

[4]

Malocha DC, 2004, ULTRASON, P1082

[5]

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[6] Orthogonal frequency coding for SAW tagging and sensors [J].

Puccio, D ;

Malocha, DC ;

Saldanha, N ;

Gallagher, DR ;

Hines, JH .

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[7]

Puccio D, 2005, P IEEE INT FREQ CONT, P307

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