A multi-frequency terminal antenna for all-metal casing
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A multi-frequency terminal and metal shell technology, which is applied in the direction of antenna, slot antenna, antenna grounding switch structure connection, etc., to achieve the effect of improving strength
What is AI technical title?
AI technical title is built by PatSnap AI team. It summarizes the technical point description of the patent document.
A multi-frequency terminal and metal shell technology, which is applied in the direction of antenna, slot antenna, antenna grounding switch structure connection, etc., to achieve the effect of improving strength
CN107369892BActive π Publication Date: 2019-08-30UNIV OF ELECTRONICS SCI & TECH OF CHINA +1
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[0045] The terminal devices in the present invention include but are not limited to: mobile phone terminals, smart watches, portable computers or any similar suitable terminal devices.
[0046] combine Figure 1 to Figure 6As shown in the schematic diagram, the specific embodiment of the present invention provides a multi-frequency smart antenna for an all-metal housing, including a metal housing 100 installed on the back of a system circuit board 800, a slit 200 opened on the metal housing 100 and The feed network 900 arranged on the front of the system circuit board 800; it is characterized in that:
[0047] The metal casing 100 is provided with a metal frame 102 extending from the back of the system circuit board 800 to the side at the peripheral edge of the metal casing 100; a first slit 201 and a second slit 202 are opened on the metal casing, and the first slit 201 It is a double-ended open-type gap, the second gap 202 is a single-ended open-type gap, and the first gap ...
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Abstract
The invention provides a multi-frequency terminal antenna for an all-metal casing, which belongs to the technical field of antennas. The antenna of the present invention includes a metal shell installed on the back of the system circuit board, a feed network and a slot arranged on the front of the system circuit board; the metal shell is located on the back of the system circuit board and has a double-ended open slot and a single For open-ended slots, the feed branches in the feed network that match the feed ports span the above two slots respectively, and the slots are excited to form resonance at multiple frequency points. The present invention further utilizes the improvement of the U-shaped folded metal sheet loaded on the double-ended open slot to form a three-dimensional structure different from the existing two-dimensional slot antenna to cover more frequency bands; the present invention realizes multi-band and wide-band At the same time, it also solves the problem of antenna performance damage caused by the coexistence of antennas and large-area metal casings, and improves the strength, texture and aesthetics of terminal equipment.
Description
technical field [0001] The invention belongs to the technical field of antennas, and in particular relates to a multi-frequency terminal antenna used in an all-metal casing. Background technique [0002] With the advent of the information age, mobile communication has achieved unprecedented development. As an important part of wireless communication, the antenna determines the electrical performance of the terminal equipment to communicate with the outside world. Generally speaking, a good antenna should significantly improve the overall performance of the terminal equipment while effectively reducing the space occupied by the antenna, and increase the The signal strength obtained by the end device and the rate of data communication. Facing the development of mobile communication networks, 4G communication networks that support high-speed data transmission are currently being popularized, and the research on 5G communication networks, which is an upgraded version of 4G comm...
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