发明名称 Multifrequency antenna
摘要 An antenna is compactified whilst being able to operate across at least two different broad frequency bands. An antenna circuit board 7 on which an antenna pattern 7a and a passive element pattern 7b are formed is accommodated inside an antenna case. An antenna element is connected electrically to the upper end of the antenna pattern 7a. An antenna operating in the GSM and DCS frequency bands is constituted by a telephone element provided on the lower portion of the antenna element and the antenna pattern 7a and passive element pattern 7b formed on the antenna circuit board 7. Thereby, a compactified antenna is enabled to operate across two different broad frequency bands.
申请公布号 US2003137463(A1) 申请公布日期 2003.07.24
申请号 US20020240569 申请日期 2002.10.03
申请人 SHIMIZU HIROSHI 发明人 SHIMIZU HIROSHI
分类号 H01Q1/24;H01Q1/32;H01Q1/38;H01Q5/00;H01Q9/30;H01Q23/00;(IPC1-7):H01Q1/32 主分类号 H01Q1/24
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