M1卡天线设计指导，电路设计

　　This document describes the Micore antenna design for applications where the antenna

　　is directly connected to the reader board （without any cable in between the reader and

　　the antenna）。

　　The MIFORE reader IC family includes the MF RC500， MF RC530， MF RC531， SL RC

　　400 and the CL RC 632. The antenna design and matching is the same for all of these

　　ICs.

　　1.1 How to use this document

　　For a good overview the Micore Antenna Principle section shows the blocks of each

　　reader antenna design， how these blocks fit to Micore， and also the complete schematic

　　of a Micore Antenna.

　　Because there are many parameters that influence the overall performance of an

　　antenna， a basic RF knowledge is needed to design an antenna that takes all these

　　parameters into account. Although this （specific） knowledge is important for

　　understanding the background， a complete antenna design （as shown in Fig 1 and Fig

　　2） can be done without RF-specific knowledge. Therefore the complete design of a

　　directly matched antenna is divided into two design levels：