Slot antenna and terminal

Abstract

The embodiment of the invention discloses a slot antenna, which is applied to a terminal with an all-metal border. The slot antenna comprises a metal bottom plate, a dielectric substrate, a first single-ported open straight slot, a second single-ported open straight slot, a ground lug, a feeding module and a matching circuit, wherein the dielectric substrate is located in a metal middle frame; the first single-ported open circuit straight slot and the second single-ported open circuit straight slot are formed in the upper end of the metal bottom plate; the ground lug is arranged between the single-ported open circuit straight slot and the second single-ported open circuit straight slot; the feeding module and the matching circuit are arranged at the upper end of the dielectric substrate; the open circuit direction of the first single-ported open circuit straight slot is opposite to the open circuit direction of the second single-ported open circuit straight slot, and extends to the edge of the metal bottom plate; a gap is formed between the metal middle frame and the metal bottom plate; the first single-ported open circuit straight slot and the ground lug form a first coupled radiation slot; and the second single-ported open circuit straight slot and the ground lug form a second coupled radiation slot. Meanwhile, the embodiment of the invention further discloses a terminal.

Description

technical field [0001] The invention relates to antenna technology in the field of communication, in particular to a slot antenna and a terminal. Background technique [0002] In recent years, terminals with all-metal borders, such as mobile phones, have been favored by domestic and foreign mobile phone manufacturers due to their beautiful appearance, strong structural strength, and excellent thermal conductivity. However, with the increasing proportion of metal coverage and the evolution requirements of mobile phones with ultra-thin and narrow bezels, it is becoming more and more difficult to realize the multi-band bandwidth of mobile phone antennas. Traditional mobile phone antenna design is difficult to meet the application requirements of metal frame mobile phones, so mobile phones with metal frames have become a major problem for mobile phone manufacturers. [0003] At present, in order to eliminate the influence of the metal frame on the performance of the antenna in ...

AI Technical Summary

Problems solved by technology

[0004] However, the above-mentioned prior art has the following disadvantages: one, the slit and grounding destroy the continuity of the metal frame, which affects the overall aesthetic feeling of the mobile phone, and the space required for the antenna design is larger than that required by the traditional antenna; two, Part of the metal frame participates in radiation as part of the antenna

When hands or other conductors hold the seam on the frame, the performance of the antenna will deteriorate sharply, resulting in poor transmission and reception

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