一种适用于无源超高频射频识别标签的低电压低功耗射频_模拟前端电路_英文.pdf

第 29 卷 　第 3 期 半 　导 　体 　学 　报 V ol . 29 　N o . 3 2008 年 3 月 J O U RN AL O F S EM I CON D U C TO RS M ar . ,2008 A Low Voltage ,Low Power RF/ Analog FrontEnd Circuit f or Passive UHF RFID Tags Ch e W e nyi , Ya n N a , Ya n g Yu qi n g , a n d M i n H a o ( St at e Key L ab or at ory of ASI C an d Syst em , A ut oID L ab or at ory , Fu da n U niversit y , Sh a ngh ai 　20 1203 , Chi n a) Abstract : This p ap er p r esents a l ow v olt age , l ow p ow er R F/ a n al og f r onte n d cir cuit f or p assive ult r a high f r e quency ( U H F) r a di o f r e quency i de nt if icat i on ( R FID ) t ags . Temp er at ur e c omp e nsat i on is ac hieve d by a r ef er ence ge ner at or usin g subt h r esh ol d t ech ni ques . Th e chip m ai nt ains a st e a dy syst e m cl oc k in a t e mp er at ur e r a nge f r om - 40 t o 100 ℃. Som e n ovel buil ding bl ocks ar e devel op e d t o save syst em p ow er c onsu mp t i on ,inclu din g a zer o st at ic cur r ent p ow eron r eset cir cuit an d a v olt age r egulat or . Th e R F/ a n al og f r onten d cir cuit is i mp le m ent e d wit h digit al b aseba n d a n d E EP R OM t o c onst r uct a μ w h ole t ag c hip in 0 18 m CM OS E EP R O M t ech n ol ogy wit h out Sc h ot t c ky di odes . M e asur e d r esults sh ow t h at t h e c hip h as