-
公开(公告)号:US20150091756A1
公开(公告)日:2015-04-02
申请号:US14039179
申请日:2013-09-27
IPC分类号: H01Q3/20
CPC分类号: H01Q3/44 , G01S7/03 , G02B5/1876 , G02B27/44 , H01Q3/20 , H01Q15/02 , H01Q19/065
摘要: A reconfigurable aperture includes a plurality of metallic particles confined to a volume extending across an aperture area. The metallic particles are repositioned within the volume to form opaque regions in the aperture area. The opaque regions, and transmissive regions between the opaque regions, can form a reconfigurable zone plate that can change the collimation of a microwave beam via diffraction therethrough. The zone plate can be located a fixed distance away from a microwave source and a detector in a housing, so that for any specified wavelength produced by the microwave source, the zone plate can reconfigure to have a focal length equal to the fixed distance. The reconfigurable zone plate can effectively collimate microwaves produced by the microwave source, can direct the collimated microwaves in a specified direction, can receive microwaves returning along the specified direction, and can focus the received microwaves onto the detector.
摘要翻译: 可重新配置的孔包括限制在延伸穿过孔区域的体积的多个金属颗粒。 金属颗粒在体积内重新定位,以在开口区域中形成不透明区域。 不透明区域和不透明区域之间的透射区域可以形成可重构区域板,其可以通过衍射从而改变微波束的准直。 区域板可以距离微波源和壳体中的检测器固定的距离,使得对于由微波源产生的任何指定波长,区域板可重新配置为具有等于固定距离的焦距。 可重构区域板可以有效地准直由微波源产生的微波,可以在指定方向上引导准直的微波,可以接收沿指定方向返回的微波,并可将接收到的微波聚焦到检测器上。
-
公开(公告)号:US09887459B2
公开(公告)日:2018-02-06
申请号:US14039179
申请日:2013-09-27
CPC分类号: H01Q3/44 , G01S7/03 , G02B5/1876 , G02B27/44 , H01Q3/20 , H01Q15/02 , H01Q19/065
摘要: A reconfigurable aperture includes a plurality of metallic particles confined to a volume extending across an aperture area. The metallic particles are repositioned within the volume to form opaque regions in the aperture area. The opaque regions, and transmissive regions between the opaque regions, can form a reconfigurable zone plate that can change the collimation of a microwave beam via diffraction therethrough. The zone plate can be located a fixed distance away from a microwave source and a detector in a housing, so that for any specified wavelength produced by the microwave source, the zone plate can reconfigure to have a focal length equal to the fixed distance. The reconfigurable zone plate can effectively collimate microwaves produced by the microwave source, can direct the collimated microwaves in a specified direction, can receive microwaves returning along the specified direction, and can focus the received microwaves onto the detector.
-