Invention Grant
- Patent Title: Array antenna apparatus including multiple steerable antennas and capable of eliminating influence of surrounding metal components
- Patent Title (中): 包括多个可转向天线的阵列天线装置，能消除周围金属部件的影响
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Application No.: US13142385Application Date: 2009-08-21
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Publication No.: US08797224B2Publication Date: 2014-08-05
- Inventor: Sotaro Shinkai , Wataru Noguchi , Hiroyuki Yurugi , Masahiko Nagoshi , Akihiko Shiotsuki , Osamu Tanaka , Toyoshi Yamada , Nobuhiko Arashin
- Applicant: Sotaro Shinkai , Wataru Noguchi , Hiroyuki Yurugi , Masahiko Nagoshi , Akihiko Shiotsuki , Osamu Tanaka , Toyoshi Yamada , Nobuhiko Arashin
- Applicant Address: JP Osaka
- Assignee: Panasonic Corporation
- Current Assignee: Panasonic Corporation
- Current Assignee Address: JP Osaka
- Agency: Wenderoth, Lind & Ponack, L.L.P.
- Priority: JP2008-332425 20081226
- International Application: PCT/JP2009/004025 WO 20090821
- International Announcement: WO2010/073429 WO 20100701
- Main IPC: H01Q19/10
- IPC: H01Q19/10
Abstract:
An antenna unit is provided with: steerable antennas, each having one active antenna element and two parasitic antenna element; and metal blocks. Each of the active antenna elements is associated with at least one of the metal blocks such that the metal block is disposed remote from the active antenna element by a predetermined distance and operates as a reflector for the active antenna element. Each of the parasitic antenna elements is provided with a switching circuit for changing an electrical length of the parasitic antenna element, and the parasitic antenna element operates as a reflector for an active antenna element of the same steerable antenna as the parasitic antenna element by changing the electrical length using the switching circuit.
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