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深度分析射频电路的原理及应用
来源: RFID世界网    发布时间: 2019-03-13 11:16   695 次浏览   大小:  16px  14px  12px
深度分析射频电路的原理及应用

  什么是射频电路

彩客网  SHEPINJIANCHENGRF,SHEPINJIUSHISHEPINDIANLIU,TASHIYIZHONGGAOPINJIAOLIUBIANHUADIANCIBODEJIANCHENG。MEIMIAOBIANHUAXIAOYU1000CIDEJIAOLIUDIANCHENGWEIDIPINDIANLIU,DAYU1000CIDECHENGWEIGAOPINDIANLIU,ERSHEPINJIUSHIZHEIYANGYIZHONGGAOPINDIANLIU。

  SHEPINDIANLUZHICHULIXINHAODEDIANCIBOZHANGYUDIANLUHUOQIJIANCHICUNCHUYUTONGYISHULIANGJIDEDIANLU。CISHIYOUYUQIJIANCHICUNHEDAOXIANCHICUNDEGUANXI,DIANLUXUYAOYONGFENBUCANSHUDEXIANGGUANLILUNLAICHULI,ZHEILEIDIANLUDOUKEYIRENWEISHISHEPINDIANLU,DUIQIPINLVMEIYOUYANGEYAOQIU,RUZHANGJULICHUANSHUDEJIAOLIUSHUDIANXIAN(50HUO60Hz)YOUSHIYEYAOYONGRFDEXIANGGUANLILUNLAICHULI。

  射频电路方框图

  射频电路的原理

  SHEPINDIANLUDEYUANLIWOMENYIPUTONGSHOUJISHEPINDIANLULAIXIANGXIDEJIESHAO:

  1、JIESHOUDIANLUDEJIEGOUHEGONGZUOYUANLI:

  JIESHOUSHI,TIANXIANBAJIZHANFASONGLAIDIANCIBOZHUANWEIWEIRUOJIAOLIUDIANLIUXINHAOJINGLVBO,GAOPINFANGDAHOU,SONGRUZHONGPINNEIJINXINGJIEDIAO,DEDAOJIESHOUJIDAIXINXI(RXI-P、RXI-N、RXQ-P、RXQ-N);SONGDAOLUOJIYINPINDIANLUJINYIBUCHULI。

  DIANLUFENXI:

  (1)DIANLUJIEGOU

彩客网  JIESHOUDIANLUYOUTIANXIAN、TIANXIANKAIGUAN、LVBOQI、GAOFANGGUAN(DIZAOSHENGFANGDAQI)、ZHONGPINJICHENGKUAI(JIESHOUJIEDIAOQI)DENGDIANLUZUCHENG。ZAOQISHOUJIYOUYIJI、ERJIHUNPINDIANLU,QIMUDEBAJIESHOUPINLVJIANGDIHOUZAIJIEDIAO(RUXIATU)。

  接收电路方框图

彩客网  2、FASHEDIANLUDEJIEGOUHEGONGZUOYUANLI

  FASHESHI,BALUOJIDIANLUCHULIGUODEFASHEJIDAIXINXIDIAOZHICHENGDEFASHEZHONGPIN,YONGTX-VCOBAFASHEZHONGPINXINHAOPINLVSHANGBIANWEI890M-915M(GSM)DEPINLVXINHAO。JINGGONGFANGFANGDAHOUYOUTIANXIANZHUANWEIDIANCIBOFUSHECHUQU。

  DIANLUFENXI:

  (1)DIANLUJIEGOU。

彩客网  FASHEDIANLUYOUZHONGPINNEIBUDEFASHEDIAOZHIQI、FASHEJIANXIANGQI;FASHEYAKONGZHENDANGQI(TX-VCO)、GONGLVFANGDAQI(GONGFANG)、GONGLVKONGZHIQI(GONGKONG)、FASHEHUGANQIDENGDIANLUZUCHENG。(RUXIATU)

  3、BENZHENDIANLUDEJIEGOUHEGONGZUOYUANLI: (BENJIZHENDANGDIANLU、SUOXIANGHUANDIANLU、PINLVHECHENGDIANLU)

  GAIDIANLUCHANSHENGSIDUANBUDAIRENHEXINXIDEBENZHENPINLVXINHAO(GSM-RX;GSM-TX;DCS-RX;DCS-TX);SONGRUZHONGPINNEIBU,JIESHOUSHIDUIJIESHOUXINHAOJINXINGJIEDIAO;FASHESHIDUIFASHEJIDAIXINXIJINXINGDIAOZHIHEFASHEJIANXIANG。

  DIANLUFENXI:

  (1)DIANLUJIEGOU:SHOUJIBENZHENDIANLUYOUSIZHONGDIANLUJIEGOU:

  a)YOUPINLVHECHENGJICHENGKUAI、JIESHOUYAKONGZHENDANGQI(RX-VCO)、13MJIZHUNSHIZHONG、YUSHEPINLVCANKAOSHUJU(SYN-DAT;SYN-CLK;SYN-RST;SIN-EN),ZUCHENG(ZAOQISHOUJIDUOYONG;RUXIATU)。

  b)BAPINLVHECHENGJICHENGKUAIJICHENGZAIZHONGPINNEIBU,JIEHEWAIJIERX-VCOZUCHENG(ZHONGQIJI、NUOJIYAJIDUOYONG;(RUXIATU)

  c)BAPINLVHECHENGJICHENGKUAI、JIESHOUYAKONGZHENDANGQI(RX-VCO)JICHENGYITI,CHENGBENZHENJICHENGKUAIHUOBENZHENSHIIC(ZHONGQIJI、SANXINGJIDUOYONG;RUXIATU)。

彩客网  d)BAPINLVHECHENGJICHENGKUAI、JIESHOUYAKONGZHENDANGQI(RX-VCO)JICHENGZAIZHONGPINNEIBU(XINXINGJI、ZAPAIJIDUOYONG;RUXIATU)。

彩客网  ZHIDEZHUYI:WULUNCAIYONGHEZHONGJIEGOUMOSHI,ZHISHICHANSHENGDEPINLVBUTONG;QIGONGZUOYUANLI,CHANSHENGDEPINLVXINHAODEZOUXIANGHEZUOYONGDOUYIYANGDE。

  射频电路的应用

  RF(Radio Frequency)技术被广泛应用于多种领域,如:电视、广播、移动电话、雷达、自动识别系统等。专用词RFID(射频识别)即指应用射频识别信号对目标物进行识别。RFID的应用包括:

  1、ETC(电子收费)

  2、 铁路机车车辆识别与跟踪

  3、 集装箱识别

  4、贵重物品的识别、认证及跟踪

  5、 商业零售、医疗保健、后勤服务等的目标物管理

  6、出入门禁管理

  7、动物识别、跟踪

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