Array antenna device and radio equipment
Patent 6147658 Issued on November 14, 2000. Estimated Expiration Date: 
July 2, 2019. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
July 2, 2019. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3121848 Patch coupled aperature array antenna Ferroelectric phase shifting antenna array Multilayer dielectric line circuit Patent #: 5943005 InventorsAssigneeApplicationNo. 346810 filed on 07/02/1999US Classes:343/853, With plural antennas333/167, Frequency domain filters utilizing only lumped parameters343/700MSMicrostripExaminersPrimary: Wong, DonAssistant: Clinger, James Attorney, Agent or FirmInternational ClassH01Q 001/38Foreign Application Priority Data1998-07-06 JPAbstractA dielectric line has a conductor plate and dielectric strip on the side of a fixed portion and a dielectric line including a conductor plate and dielectric strip on the side of a moving portion. A directional coupler comprises the dielectric lines. On a dielectric plate of an array antenna portion a plurality of linear array antennas are formed and connected to a microstrip as a feed portion. By displacement of the moving portion, the feed point to the feed portion is changed and the feed phase to each linear array antenna and the feed power to each element antenna are changed. Thus, the direction of a beam is changed. | |
