发明授权
- 专利标题: Difference drive diversity antenna structure and method
- 专利标题(中): 差分驱动分集天线结构及方法
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申请号: US09286823申请日: 1999-04-06
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公开(公告)号: US06175334B1公开(公告)日: 2001-01-16
- 发明人: Louis Jay Vannatta , Hugh Kennedy Smith , James P. Phillips , David Ryan Haub
- 申请人: Louis Jay Vannatta , Hugh Kennedy Smith , James P. Phillips , David Ryan Haub
- 主分类号: H01Q124
- IPC分类号: H01Q124
摘要:
A difference drive diversity antenna structure (200) and method for a portable wireless communication device (230) aligns a first linear antenna (240) parallel to a major axis (245) of the communication device and drives dual radiators (252, 254) of a second antenna (250) at equal magnitudes but with a 180 degree phase difference. A difference drive diversity antenna structure implemented in a portable wireless communication device maintains significant decorrelation between the first antenna (240) and the second antenna (250) over the common frequency ranges of the dual radiators (252, 254). Also, antenna currents on the body of the communication device are minimized and the effects of a hand or body near the communication device are reduced.