Super-regenerative receiver at 433 MHz

被引:3
|
作者
Carmo, Joao Paulo [1 ]
Ribeiro, Jose Carlos [1 ]
Mendes, Paulo Mateus [1 ]
Correia, Jose Higino [1 ]
机构
[1] Univ Minho, Dept Ind Elect, P-4800058 Guimaraes, Portugal
关键词
Super-regeneration; RF receiver; Super-regenerative receiver; CMOS; TRANSCEIVER; DESIGN;
D O I
10.1016/j.mejo.2011.02.009
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 receiver for operation in the 433 MHz ISM band. The selected architecture explores the super-regeneration phenomena to achieve a high sensitivity for applying in wireless implantable microsystems. This radio-frequency (RF) chip can be supplied with a voltage of only 3 V for demodulating signals with powers in the range (-100, -40) dB. The codulation (modulation and coding) scheme of the binary data is a variation of the Manchester code combined with on/off keying (OOK) modulation. The AMIS 0.7 mu m CMOS process was selected for targeting the requirement to fabricate a low-cost receiver, whose prototype was integrated in a die with an area of 5 x 5 mm(2). Also, this receiver is fully compatible with commercial transmitters for the same frequency. (C) 2011 Elsevier Ltd. All rights reserved.
引用
收藏
页码:681 / 687
页数:7
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