A Compact Low Power ASK Demodulator for Passive UHF RFID Tags

被引：0

作者：

Huang Xiaozong ^{[1
,2
]}

Liu Zhiwei ^{[1
,2
]}

Liu Luncai ^{[2
]}

Liu Fan ^{[2
]}

Zhu Dongmei ^{[2
]}

Huang Wengang ^{[2
]}

机构：

[1] Univ Elect Sci & Technol China, Sch Microelect & Solid State Elect, Chengdu 610054, Peoples R China

[2] Sichuan Inst Solid State Circuits, Analog IC Design Ctr, Chongqing, Peoples R China

来源：

2014 IEEE INTERNATIONAL CONFERENCE ON ELECTRON DEVICES AND SOLID-STATE CIRCUITS (EDSSC) | 2014年

关键词：

Amplitude Shift Keying; Demodulator; Low Power; Area-Saving;

D O I：

暂无

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：

A Low power Amplitude Shift Keying (ASK) demodulator circuit for passive UHF Radio Frequency Identification (RFID) tag is designed in this paper with several area-saving techniques. Current source is employed to realize the envelop detector instead of resistor to reduce the area. Differential circuit is inserted into the demodulator to enhance the performance of demodulation. Diode-connected PMOS pair is used to clamp or average the input signal while the area is saved dramatically. The ASK demodulator is powered by on-chip power of 1.8V with current consumption of less than 0.5 mu A from the rectifier block. The power supply voltage can be reduced further to save more power.

引用

页数：2

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