External omnidirectional antenna and communication equipment with same

Abstract

The invention relates to the technical field of antennas, and discloses an external omnidirectional antenna and communication equipment with the antenna. Horizontal omnidirectional radiation of the antenna can be realized. The external omnidirectional antenna comprises: a substrate with a double-surface structure, wherein parallel double lines are arranged on the substrate; a first dipole array element connected to the parallel double lines and composed of two radiation arms, wherein one radiation arm is arranged on the left side of the upper surface of the substrate, the other radiation arm is arranged on the left side of the lower surface of the substrate, and a gap is formed between the two radiation arms; a second dipole array element connected to the parallel double lines and composed of two radiation arms, wherein one radiation arm is arranged on the right side of the upper surface of the substrate, the other radiation arm is arranged on the right side of the lower surface of the substrate, a gap is formed between the two radiation arms, and an array element distance is formed between the first dipole array element and the second dipole array element; a feeding point arranged at the central position between the first dipole array element and the second dipole array element; and a matching unit arranged on the parallel double lines.

Description

technical field [0001] The invention relates to the technical field of antennas, in particular to an external omnidirectional antenna and communication equipment with the antenna. Background technique [0002] WiFi 6E, also known as High-Efficiency Wireless (HEW), is the sixth generation of WiFi technology. 802.11ax Wave1 supports 2.4GHz and 5GHz frequency bands and is backward compatible with 11a / b / g / n / ac. Based on 802.11ax Wave1, WiFi 6E enables the 5.925GHz to 7.125GHz frequency band to meet the higher throughput requirements of wireless devices. [0003] However, the dipole array used in the current antenna has a small antenna impedance bandwidth. In the 7GHz frequency band, the bandwidth with return loss less than -10dB is only about 15%, which cannot meet the full frequency band of 5.15~5.85GHz&5.925GHz~7.125GHz In addition, the traditional series-fed dipole array cannot guarantee that the excitation phase of the two dipole array elements is consistent, and there will...

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Problems solved by technology

[0003] However, the dipole array used in the current antenna has a small antenna impedance bandwidth. In the 7GHz frequency band, the bandwidth with return loss less than -10dB is only about 15%, which cannot meet the full frequency band of 5.15~5.85GHz&5.925GHz~7.125GHz In addition, the traditional series-fed dipole array cannot guarantee that the excitation phase of the two dipole array elements is consistent, and there will be a large split lobe or side lobe, which will reduce the gain of the main lobe or make the main lobe not on the horizontal plane

[0004] Therefore, there is currently no external omnidirectional antenna suitable for indoor wireless communication equipment in the full frequency band of WiFi 6E

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