发明名称 |
Mehrbandantenne mit zwei konzentrischen verschachtelten Antennen, wobei die äussere eine meanderförmige Antenne ist |
摘要 |
An antenna (1) is provided to operate in multiple frequency bands. The antenna (1) consists of a first antenna element (3) for receiving and transmitting signals in a first frequency band, and a second antenna element (7) for receiving and transmitting signals in a second frequency band. The first antenna element (3) has a substantially elongated conductor of a predetermined first pitch, which is coupled to a feed point (4). The second antenna element (3) has a substantially meandering coil of a predetermined second pitch, which is coupled to said feed point (4). The substantially meandering coil comprises a plurality of first portions (7a) having a wound form and surrounding at least partly said first antenna element (3) and also comprises a plurality of second portions (7b) having a straight form. Each first portion (7a) extends from an upper end of said second portion (7b) to a lower end of a subsequent second portion (7b) following in axial direction of the second antenna element. <IMAGE> |
申请公布号 |
DE60205181(D1) |
申请公布日期 |
2005.09.01 |
申请号 |
DE2002605181 |
申请日期 |
2002.05.14 |
申请人 |
HEWLETT-PACKARD COMPANY, PALO ALTO |
发明人 |
LEE, MAN WEI;TAN, HUAN FONG;YAP, BENG TIEK |
分类号 |
H01Q21/30;H01Q1/24;H01Q1/36;H01Q1/38;H01Q1/42;H01Q5/00;H01Q9/32;H01Q9/42;(IPC1-7):H01Q1/36 |
主分类号 |
H01Q21/30 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|