An active tagging system using circular-polarization modulation

被引：88

作者：

Kossel, MA ^{[1
]}

Küng, R

Benedickter, H

Bächtold, W

机构：

[1] ETH Zurich, Swiss Fed Inst Technol, Lab Electromagnet Fields & Microwave Elect, Zurich, Switzerland

[2] Univ Appl Sci, Wireless Lab, Rapperswil, Switzerland

来源：

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES | 1999年 / 47卷 / 12期

关键词：

circular-polarization modulation; frequency hopping; microwave tagging system; RFID;

D O I：

10.1109/22.808966

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：

An active read/write microwave tagging system using circular-polarization modulation as a novel modulation scheme for radio-frequency identification systems is presented. The proposed modulation scheme reduces demodulation complexity and power consumption on the battery-powered tag, Additional coding of the circular-polarization modulated data reduces transmission errors due to polarization inversion at multipath propagation, In multiple-reader environments, the main jamming threat occurs from power carriers of different interrogators, A combination of circular-polarization modulation and frequency hopping is presented that shows an increased immunity against multipath phenomena for multiple-tag and multiple-reader environments.

引用

页码：2242 / 2248

页数：7

共 6 条

[1] A low-cost active antenna for short-range communication applications [J].