The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 31, 2021
Filed:
Dec. 04, 2019
Aac Technologies Pte. Ltd., Singapore, SG;
Zhimin Zhu, Shenzhen, CN;
Jianchun Mai, Shenzhen, CN;
AAC Technologies Pte. Ltd., Singapore, SG;
Abstract
The present disclosure provides a filter antenna, including a radiation structure, a filter structure and a feed structure, the radiation structure comprises a plurality of antenna units stacked from top to bottom, the filter structure comprises a plurality of resonant cavities stacked from top to bottom and communicating sequentially in a coupling manner, the filter structure includes an input terminal and an output terminal, the radiation structure and the filter structure are stacked from top to bottom and electrically connected through the output terminal, and the feed structure has one end electrically connected to the input terminal of the filter structure and another end connected to an external power supply. Miniaturization is achieved by the stacking structure, filtering performance of the bandwidth is obtained by using the multi-stage SIW cavities cascaded, and the interference from out-of-band spurious signals in a frequency range of the bandwidth is effectively suppressed.