Antennas and Electronics

Abstract

The invention relates to an antenna and an electronic device. The antenna is applied to the electronic device and comprises a grounded plate, a metal sheet, a feed-in assembly and a short circuit wall, wherein the grounded plate is used for grounding; the shape of the metal sheet approximately corresponds to a rectangle, and a first corner of the rectangle is provided with a first chamfering; the feed-in assembly is electrically connected with a second corner of the metal sheet relative to the rectangle and is used for transferring electromagnetic energy, and the second corner is adjacent to the first corner; the short circuit wall is electrically connected with the grounded plate and a first side of the metal sheet so that the grounded plate and the metal sheet form a resonant cavity therebetween, the first side is opposite to a second side of the metal sheet, and the second side is adjacent to the first corner and the second corner; the length and the width of the rectangle corresponding to the metal sheet are respectively relative to a frequency range of at least one working frequency band of the antenna, and the first chamfering of the metal sheet is used for increasing the frequency range of a first frequency band of the at least one working frequency band. The antenna and the electronic device have the advantages of a broad band, multiple frequency bands, small size and high efficiency.

Description

technical field [0001] The invention relates to an antenna and an electronic device, especially an antenna and an electronic device with the characteristics of broadband, multi-band or wide-band, small size, and high efficiency. Background technique [0002] Antennas are used to transmit or receive radio waves to transmit or exchange radio signals. Generally, electronic products with wireless communication functions, such as notebook computers, personal digital assistants (Personal Digital Assistant), etc., usually access wireless networks through built-in antennas. Therefore, in order to allow users to access the wireless communication network more conveniently, the bandwidth of the ideal antenna should be increased as much as possible within the allowable range, while the size should be reduced as much as possible to match the trend of shrinking the size of portable wireless communication equipment. The antenna is integrated into the portable wireless communication equipm...

AI Technical Summary

Problems solved by technology

[0003] In the known technology, for multi-frequency applications, the common way is to use multiple antennas or multiple radiators (such as slot holes of slot antennas, branches of dipole antennas, etc.) to send and receive wireless signals in different frequency bands respectively, resulting in design Increased complexity and, more seriously, the overall size of the antenna increases as the required frequency bands increase

If the installation space of the antenna is relatively limited, it may even cause interference between antennas, thus affecting the normal operation of the antenna

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