Inverted F-shaped antenna structure and portable electronic device provided with antenna structure

Abstract

An antenna structure includes a first radiation arm, a second radiation arm, a feed end, and a ground end. The second radiation arm is perpendicularly connected to the first radiation arm. The first radiation arm and the second radiation arm jointly form a junction, both the feed end and the ground end are positioned adjacent to the junction.

Description

technical field [0001] The invention relates to an antenna structure, in particular to an inverted F-shaped antenna structure and a portable electronic device with the antenna structure. Background technique [0002] As far as the current general GPS antenna design is concerned, because GPS satellite signals are transmitted by right-handed circularly polarized waves, traditional GPS circularly polarized receiving antennas are mostly designed as planar antennas. The advantages of this type of antenna are It has circular polarization characteristics and high directivity, but based on the current design of existing antenna products on the market, it needs to occupy at least a whole piece of about 12 x 12 mm 2 The rectangular design area is not conducive to the spatial arrangement of existing mobile communication devices, especially small-sized devices such as smart watches. Therefore, the general design is mainly based on the linearly polarized inverted F-shaped antenna design,...

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Problems solved by technology

[0002] As far as the current general GPS antenna design is concerned, because GPS satellite signals are transmitted by right-handed circularly polarized waves, traditional GPS circularly polarized receiving antennas are mostly designed as planar antennas. The advantages of this type of antenna are It has circular polarization characteristics and high directivity, but based on the current design of existing antenna products on the market, it needs to occupy at least a whole piece of about 12 x 12 mm 2 The rectangular design area is not conducive to the spatial arrangement of existing mobile communication devices, especially small-sized devices such as smart watches. Therefore, the general design is mainly based on the linearly polarized inverted F-shaped antenna design, but this type of design is not suitable for receiving circularly polarized The GPS satellite signal will increase the polarization loss by up to about 3 dB. Therefore, how to design a circularly polarized antenna with limited design space is a development topic.

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