Multiple-input and multiple-output antenna structures
A technology for antennas and electronic equipment, applied in the direction of antennas, resonant antennas, antenna components, etc., can solve problems such as interference with radio frequency performance of wireless equipment, degradation, and difficulties with multiple antennas
Active Publication Date: 2020-03-06
APPLE INC
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
However, it can be difficult to electromagnetically isolate multiple antennas operating at the same frequency, which can lead to interference between the RF signals transmitted by each antenna and degradation of the RF performance of the wireless device
Method used
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[0024] electronic equipment (such as figure 1 The electronic device 10) may be provided with a wireless communication circuit. The wireless communication circuitry is operable to support wireless communication in multiple wireless communication frequency bands.
[0025] Wireless communication circuitry may include one or more antennas. Antennas for wireless communication circuits may include loop antennas, inverted-F antennas, strip antennas, planar inverted-F antennas, slot antennas, dipole antennas, monopole antennas, helical antennas, patch antennas, including more than one type of antenna structure of hybrid antennas or other suitable antennas. The conductive structures of the antenna may be formed from conductive electronic device structures, if desired.
[0026] The conductive electronic device structure may include a conductive housing structure. The housing structure may include a peripheral structure, such as a peripheral conductive structure, extending around a p...
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An electronic device may include a housing and four antennas at respective corners of the housing. Cellular telephone transceiver circuitry may concurrently convey signals at one or more of the same frequencies over one or more of the four antennas using a multiple-input multiple-output (MIMO) scheme. In order to isolate adjacent antennas, dielectric-filled openings may be formed in conductive walls of the housing to divide the walls into segments that are used to form resonating element arms for the antennas. If desired, first and second antennas may include resonating element arms formed from a wall without any gaps. The first and second antennas may include adjacent return paths. A magnetic field associated with currents for the first antenna may cancel out with a magnetic field associated with currents for the second antenna at the adjacent return paths, thereby serving to electromagnetically isolate the first and second antennas.
Description
[0001] This patent application claims priority to U.S. Patent Application No. 15 / 657,001, filed July 21, 2017, which is hereby incorporated by reference in its entirety. Background technique [0002] The present invention relates generally to electronic devices, and more particularly to electronic devices having wireless communication circuitry. [0003] Electronic devices often include wireless circuitry with antennas. For example, cellular telephones, computers and other devices often contain antennas to support wireless communications. [0004] Forming electronic device antenna structures with desired properties can be challenging. In some wireless devices, the antenna is relatively large. In other devices, the antenna is compact but sensitive to the position of the antenna relative to external objects. It is often difficult to perform wireless communication at a satisfactory data rate (data throughput) in a wireless device using a single antenna, especially when the sof...
Claims
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Patent Timeline
Login to View More IPC IPC(8): H01Q1/24H01Q1/28H01Q1/42H01Q1/44H01Q9/42H04B7/0413H01Q5/321H01Q21/28
CPCH01Q1/243H01Q1/42H01Q1/44H01Q9/42H01Q21/28H04B7/0404H01Q5/321H01Q5/35H01Q1/523H01Q21/06H04B1/40H01Q1/242
Inventor E·阿雅拉瓦兹奎兹胡鸿飞M·帕斯科里尼金男波M·A·莫E·厄西E·J·同王涵
Owner APPLE INC