发明申请
- 专利标题: Antenna apparatus and radio communication apparatus
- 专利标题(中): 天线装置和无线通信装置
-
申请号: US11439462申请日: 2006-05-23
-
公开(公告)号: US20070188392A1公开(公告)日: 2007-08-16
- 发明人: Masaru Kanazawa , Shin Watanabe
- 申请人: Masaru Kanazawa , Shin Watanabe
- 专利权人: FUJITSU LIMITED
- 当前专利权人: FUJITSU LIMITED
- 优先权: JP2006-037404 20060215
- 主分类号: H01Q1/24
- IPC分类号: H01Q1/24
摘要:
The present invention relates to an antenna apparatus corresponding to a plurality of multi-bands, etc. and makes a plurality of radio communication frequencies easily changed or set. The present invention includes a passive element composed of a plurality of element units (elements 141, 142, 143) linked with a switching element (PIN diode) between the element units, and since the operating frequency of the passive element is switched by opening and closing the switching element and the passive element acts as a waveguide element, a radiation pattern can be acquired by the passive element and the effect of a human body is reduced on the radiant efficiency.
公开/授权文献
- US07477198B2 Antenna apparatus and radio communication apparatus 公开/授权日:2009-01-13