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:
Apr. 19, 2022
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 millimeter wave LTCC filter including system ground layers and metalized vias; two first perturbation metallized vias provided in a first substrate integrated waveguide unit and two second perturbation metallized vias provided in a second substrate integrated waveguide unit; the two first perturbation metallized vias are symmetrically provided on a first diagonal of the first closed resonant cavity with respect to a geometric center of the first closed resonant cavity; the two second perturbation metallized vias are symmetrically provided on a second diagonal of the second closed resonant cavity with respect to a geometric center of the second closed resonant cavity, and the first diagonal and the second diagonal are orthogonal to each other; a first port and a second port. Compared with the related art, the millimeter wave LTCC filter of the present disclosure is small in volume, large in bandwidth, and low in loss.