A tri-band miniaturized pure metal pifa antenna with V2X frequency band

Abstract

A tri-band miniaturized pure metal Pifa antenna with V2X frequency band of the present invention includes an antenna as a whole, the antenna as a whole is in the shape of a hollow cuboid, and the antenna as a whole includes a feeding port, a grounding arm, an L-shaped curved straight surface high frequency Radiation arm, curved impedance matching arm, radiation arm, medium frequency radiation arm, low frequency radiation arm, curved straight surface short-circuit arm, curved straight surface adjustment arm, the size of the three low, medium and high frequency radiation arms can be adjusted according to the required frequency. The impedance matching arm of the straight surface, the adjustment arm of the straight surface and the short-circuit arm of the straight surface are used to optimize the impedance and bandwidth of the antenna. The whole antenna is manufactured by a pure metal three-dimensional bending process. Bend down several parts of the antenna to effectively reduce the size of the antenna.

Description

technical field [0001] The invention relates to the technical field of antennas for wireless communication, in particular to a tri-frequency miniaturized pure metal Pifa antenna including V2X frequency bands. Background technique [0002] With the development of communication technology, some of the most advanced technologies have been invented, among which the V2X technology that involves people's daily driving safety is one of the most advanced technologies. V2X refers to the information exchange between vehicles and the outside world, and is a general term for a series of vehicle communication technologies. V2X includes vehicle-to-vehicle (V2V), vehicle-to-roadside equipment (V2R), vehicle-to-infrastructure (V2I), vehicle-to-pedestrian (V2P), vehicle-to-motorcycle (V2M) and vehicle-to-bus (V2T). kind. The Ministry of Industry and Information Technology of the People's Republic of China has planned the V2X frequency band as 5905-5925MHz, which is closely following the 5G...

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Problems solved by technology

[0003] In order to ensure that the antenna has good gain, bandwidth and multi-frequency coverage, the ordinary Pifa antenna has problems such as complex structure and unstable installation method, which is not conducive to the practical application of the designed antenna. Among traditional antenna types, such as helical antenna, multi-twig monopole Sub-antennas and folded monopole antennas, etc., the bottom plate will also have a great impact on the overall performance of the antenna, and it is not conducive to production processing and high integration, and there are design problems of large volume and narrow bandwidth

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