| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an electronic circuit module which receives little effect of a size of a substrate and existence of a surrounding conductor to an antenna, makes limitation of flexibility to the cabinet or substrate design small, and makes an adjustment of a high frequency circuit unnecessary; and moreover, to provide the electronic circuit module which can realize a radio communication function without requiring advanced knowledge of an antenna or a high frequency circuit to a circuit designer. <P>SOLUTION: The electronic circuit module is constituted such that the antenna, an impedance matching circuit, and a high frequency transceiver circuit are mounted on the same printed wiring board; the antenna is a Brown antenna which is configured on the printed circuit board as a conductor pattern, and has a loop in which a line length configured by the conductor pattern on the printed circuit board is nearly the same length of a 1/2 wave length of the operating frequency; and the conductor pattern is made in a meander shape. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
