Invention Grant
- Patent Title: Antenna system with return path tuning and loop element
- Patent Title (中): 具有返回路径调谐和回路元件的天线系统
-
Application No.: US13860396Application Date: 2013-04-10
-
Publication No.: US09444130B2Publication Date: 2016-09-13
- Inventor: Peter Bevelacqua , Hao Xu , Jayesh Nath , Jennifer M. Edwards , Mattia Pascolini
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Treyz Law Group, P.C.
- Agent G. Victor Treyz; Michael H. Lyons
- Main IPC: H01Q1/24
- IPC: H01Q1/24 ; H01Q7/00 ; H01Q9/04

Abstract:
Electronic devices may include radio-frequency transceiver circuitry and antenna structures. The antenna structures may include a dual arm inverted-F antenna resonating element and an antenna ground. An antenna feed may be coupled between the inverted-F antenna resonating element and the antenna ground. An adjustable component such as an adjustable inductor may be coupled between the inverted-F antenna resonating element and the antenna ground in parallel with the antenna feed. The adjustable component may be operable in multiple states such as an open circuit state, a short circuit state, and a state in which the adjustable component exhibits a non-zero inductance. Antenna bandwidth can be broadened by coupling a loop antenna resonating element across the antenna feed. A portion of the antenna ground may overlap the loop antenna resonating element to further enhance antenna bandwidth.
Public/Granted literature
- US20140306857A1 Antenna System With Return Path Tuning And Loop Element Public/Granted day:2014-10-16
Information query