公开(公告)号：US20220393365A1

公开(公告)日：2022-12-08

申请号：US17338481

申请日：2021-06-03

Applicant: Apple Inc.

Inventor： Jiangfeng Wu ,  Siwen Yong ,  Simon G. Begashaw ,  Yi Jiang ,  Lijun Zhang

IPC: H01Q19/00 ,  H01Q1/38 ,  H01Q21/06

Abstract: An electronic device may have an antenna embedded in a substrate. The substrate may have first layers, second layers on the first layers, and third layers on the second layers. The antenna may include a first patch on the first layers that radiates in a first band, a second patch on the second antenna layers that radiates in a second band, and a parasitic patch on the third layers. A short path may couple ground to a location on the first patch that allows the first patch to form a ground extension in the second band for the second patch without affecting performance of the first patch in the first band. The first layers may have a higher dielectric permittivity than the second and third layers to minimize the thickness of the substrate without requiring a separate dielectric loading layer over the substrate.

公开(公告)号：US11502391B2

公开(公告)日：2022-11-15

申请号：US17031618

申请日：2020-09-24

Applicant: Apple Inc.

Inventor： Siwen Yong ,  Jiangfeng Wu ,  Yi Jiang ,  Simon G. Begashaw ,  Harish Rajagopalan ,  Hee-Joung Joun ,  Thomas W. Yang ,  Mattia Pascolini

IPC: H01Q1/22 ,  H01Q3/26 ,  H01Q1/38

Abstract: An electronic device may have an antenna that conveys radio-frequency signals at frequencies greater than 10 GHz. The antenna may be embedded in a substrate. The substrate may have routing layers, first antenna layers on the routing layers, second antenna layers on the first antenna layers, and a third antenna layers on the second antenna layers. The antenna may include first traces on the first antenna layers, second traces on the second antenna layers, and third traces on the third antenna layers. The first antenna layers may have a first bulk dielectric permittivity. The second layers may have a second bulk dielectric permittivity. The third layers may have a third bulk dielectric permittivity. At least one of the first, second, and third bulk dielectric permittivities may be different from the others. This may differentially load the antenna across the antenna layers, thereby broadening the bandwidth of the antenna.