Title:
フォトニック結晶構造を利用する無線周波数ビームをステアリングおよび安定化するための方法および装置
Document Type and Number:
Japanese Patent JP5324861
Kind Code:
B2
Abstract:
An RF beam steering device employs a prism assembly (20, 21) to steer an RF beam (7) and a compensation device to address undesirable movement of the beam steering device. The prism assembly includes a plurality of dielectric prisms each with an associated impedance matching layer. The dielectric prisms are rotated relative to each other to steer the RF beam in a desired direction and further to compensate for movement of the beam steering device itself. The prisms include a plurality of individual panels with drilled or slotted openings that are arranged to create a periodic photonic crystal structure within a defined region. This configuration effectively alters the dielectric constant over any one particular region of a panel, thereby altering the level of diffraction possible for a specified panel thickness.
Inventors:
Mark david brownstein
Robert Scott Windsor
Peter charles freeland
Shane William Picston
Robert Scott Windsor
Peter charles freeland
Shane William Picston
Application Number:
JP2008211208A
Publication Date:
October 23, 2013
Filing Date:
August 19, 2008
Export Citation:
Assignee:
Excelis Incorporated
International Classes:
H01Q15/08; H01Q3/14; H01Q19/06
Domestic Patent References:
| JP5075328A | ||||
| JP10145129A | ||||
| JP2001085936A | ||||
| JP6053719A | ||||
| JP2004006316A | ||||
| JP2001042248A |
Foreign References:
| WO2005086783A1 |
Attorney, Agent or Firm:
Hidesaku Yamamoto
Takaaki Yasumura
Natsuki Morishita
Takaaki Yasumura
Natsuki Morishita