Antenna structures having resonating elements and parasitic elements within slots in conductive elements

Abstract

Electronic devices (10) may include radio-frequency transceiver circuitry (32) and antenna structures (34). The antenna structures (34) may include antenna resonating elements (60) such as dual-band antenna resonating elements that resonate in first and second communications bands. The antenna structures may also contain parasitic antenna elements (60) such as elements that are operative in only the first or second communications band and elements that are operative in both the first and second communications bands. The antenna resonating elements and parasitic elements may be mounted on a common dielectric carrier. The dielectric carrier may be mounted within a slot (56) or other opening in a conductive element. The conductive element may be formed from conductive housing structures in an electronic device such as a portable computer. The portable computer may have a clutch barrel (54) with a dielectric cover. The dielectric cover may overlap and cover the slot and the dielectric carrier.

Description

technical field [0001] The present disclosure relates to wireless electronic devices, and more particularly, to antenna structures for wireless electronic devices. Background technique [0002] Electronic devices such as computers and handheld electronic devices are often equipped with wireless communication capabilities. For example, an electronic device may use cellular telephone circuitry to communicate using cellular telephone bands. Electronic devices may use short-range wireless communication links to handle communications with nearby devices. For example, electronic devices can use 2.4GHz and 5GHz (IEEE 802.11) band and at 2.4GHz band for communication. [0003] To meet consumer demands for small form factor wireless devices, manufacturers are constantly striving to implement wireless communication circuits, such as antenna assemblies, that employ compact structures. For example, antennas have been mounted in clutch barrel portions of portable computer housings...

AI Technical Summary

Problems solved by technology

[0004] However, if care is not taken, an antenna mounted in this manner can exhibit changes in performance as the computer's lid is opened and closed, may suffer from undesired losses, or fail to operate with small coupling barrels or multiple exhibited satisfactory performance in the configuration of the antenna

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