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Cavity-backed slot antenna with near-field-coupled parasitic slot

A slot antenna, cavity antenna technology, applied in slot antennas, antennas, antenna components and other directions, can solve problems such as radio frequency interference and low efficiency

Active Publication Date: 2013-01-09
APPLE INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Small antennas, or antennas whose shape allows the antenna to fit within limited device enclosures, can exhibit inefficiency or generate radio frequency interference if care is not taken

Method used

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  • Cavity-backed slot antenna with near-field-coupled parasitic slot
  • Cavity-backed slot antenna with near-field-coupled parasitic slot
  • Cavity-backed slot antenna with near-field-coupled parasitic slot

Examples

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Embodiment Construction

[0022] Antennas are used in wireless electronic devices to support wireless communications. The wireless electronic device may be a desktop computer, computer monitor, computer monitor with embedded computer, wireless computer card, wireless adapter, television, set top box, game console, router, or other electronic device. If desired, antennas may be provided for portable electronic devices such as laptop computers, tablet computers, or small portable computers sometimes referred to as handheld computers. Antennas may be used in wireless electronic devices such as cellular telephones or media players. Wireless electronic devices that can use antennas can also be somewhat smaller devices. Examples of smaller wireless electronic devices include wristwatch-style devices, pendant devices, handheld devices, headphone and earphone devices, and other wearable miniature devices.

[0023] figure 1 An exemplary electronic device including an antenna is shown in . figure 1 The elect...

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Abstract

Electronic devices may be provided with antennas. The antennas may include conductive antenna cavities. Antenna resonating elements may be mounted in the antenna cavities to form cavity antennas. An antenna cavity may be formed from metal structures with curved edges that define a curved cavity opening. A flexible printed circuit substrate may be coated with a layer of metal. Slot antenna structures such as a directly fed antenna slot and a parasitic antenna slot may be formed from openings in the metal layer. The flexible printed circuit substrate may be flexed so that the antenna resonating element forms a non-planar curved shape that mates with the opening of the antenna cavity. A ring of solder may be used to electrically seal the edges of the cavity opening to the metal layer in the antenna resonating element. The curved opening may be aligned with curved housing walls in an electronic device.

Description

[0001] priority [0002] This application claims priority to US Patent Application No. 12 / 750,661, filed March 30, 2010, which is hereby incorporated by reference in its entirety. technical field [0003] The present application relates generally to antennas and, more particularly, to electronic devices having cavity antennas, such as cavity-backed slot antennas. Background technique [0004] Electronic devices often contain wireless communication circuitry. For example, a computer can use Wi-Fi on 2.4GHz and 5.0GHz (IEEE 802.11) frequency band communication. It is also possible to communicate in cellular telephone telecommunications bands as well as other wireless bands. [0005] To meet consumer demand for compact and pleasing wireless devices, manufacturers are constantly striving to produce antennas that are appropriately shaped and small in size. At the same time, manufacturers are trying to ensure that the antenna works efficiently and does not interfere with adja...

Claims

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Application Information

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IPC IPC(8): H01Q1/24H01Q5/00H01Q13/18H01Q5/378
CPCH01Q13/18H01Q1/243H01Q5/0062H01Q5/378H01Q1/24H01Q5/00
Inventor P·贝维拉夸R·J·希尔
Owner APPLE INC
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