发明名称 |
RADIO COMMUNICATION TERMINAL DEVICE |
摘要 |
<p>PROBLEM TO BE SOLVED: To provide a radio communication terminal device which can suppress the entry of noise of a high-frequency component, which is generated at a control circuit part of an information processor and a communication control circuit part of a body device and falls down to the reception frequency of the body device, into a high-frequency circuit part of the body device. SOLUTION: A 1/2λwhip antenna 102 when extended operates as an antenna to its overall length and a high-frequency current hardly flows to the ground of a 1st circuit board 106. When the antenna is stored, a 1/4 helical antenna 101 and a metal vapor-deposited 1/4λradial of a 1st housing 103 operate as an antenna to the overall length and a high-frequency current hardly flows to the ground of the 1st circuit board 106. The overall length of the antenna is 1/2λwhen the antenna is extended and stored, so a high-frequency current hardly flows to the ground of the 1st circuit board 106, so the input of noise generated by the circuit control part of information processor such as a personal computer and a PDA and noise generated by the communication control circuit part of a radio communication terminal device to a high-frequency circuit through the ground of the circuit board 106 can be reduced.</p> |
申请公布号 |
JP2001102949(A) |
申请公布日期 |
2001.04.13 |
申请号 |
JP19990274330 |
申请日期 |
1999.09.28 |
申请人 |
MATSUSHITA ELECTRIC IND CO LTD |
发明人 |
MATSUURA IWAO;YAKIDA HIDEKI;KAMIYA TADANAKA |
分类号 |
H01Q1/08;G06F1/16;H01Q1/24;H01Q1/36;H01Q1/48;H01Q9/32;H04B1/38;H04M1/02;H04M1/21;(IPC1-7):H04B1/38 |
主分类号 |
H01Q1/08 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|