发明名称 |
DUAL BAND ANTENNA FOR MOBILE COMMUNICATIONS |
摘要 |
A dual band antenna for mobile communications includes a rod-shaped radiatin g element having a first portion of a predetermined length connected to a coaxial feed line, and a second portion of a specified length integrally extended from the first portion. The coaxial feed line connects to a ground plate, and a first capacitive load connects to the first portion of the radiating element. A choke surrounds the second portion of the radiating element, and has a shorting end connected to a distal end of the second portion and an open end at a proximal end of the second portion. A second capacitive load connects to the shorting end of the choke. In a higher operating band of the dual band, the input impedance of the choke is high, such that only the first (lower) portion of the radiating element radiates. At a lower operating band of the dual band, the choke's input impedance is lowe r to allow for radiation from the entire length of the antenna. |
申请公布号 |
CA2293396(C) |
申请公布日期 |
2002.02.12 |
申请号 |
CA19972293396 |
申请日期 |
1997.12.26 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
KRYLOV, KONSTANTIN;GOUDELEV, ALEXANDRE;SEO, HO SOO;HA, DONG IN |
分类号 |
H01Q5/01;H01Q5/00;H01Q9/30;H01Q9/36;H01Q9/40;H04B1/38;(IPC1-7):H01Q5/01;H04B1/18 |
主分类号 |
H01Q5/01 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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