an antenna

Abstract

An embodiment of the invention provides an antenna and belongs to the field of wireless communication. The antenna includes a first layer dielectric substrate, a second layer dielectric substrate anda third layer dielectric substrate arranged from bottom up in sequence. The first layer dielectric substrate is provided with a feed network. The second layer dielectric substrate is provided with a DC bias circuit. The third layer dielectric substrate is provided with a capacitive coupling paster array and a round radiation paster array. The feed network is connected with the DC bias circuit andthe capacitive coupling paster array. The capacitive coupling paster array is connected with the round round radiation paster array. The feed network enables the round radiation paster array to generate left-hand circular polarization electromagnetic waves having a modal 1=1 according to voltage signals provided by the DC bias circuit when the voltage signals meet a first preset condition and enables the round radiation paster array to generate right-hand circular polarization electromagnetic waves having a modal 1=1 according to voltage signals provided by the DC bias circuit when the voltagesignals meet a second preset condition. Simple and convenient operation is achieved.

Description

technical field [0001] The present invention relates to the field of wireless communication, in particular to an antenna. Background technique [0002] The contradiction between the rapidly growing amount of wireless communication network data and the increasingly scarce spectrum resources has become increasingly prominent. In order to solve this contradiction, it is urgent to explore new multiplexing dimensions and technologies to greatly improve spectrum efficiency. In recent years, researchers have found that the orthogonality between different modes of electromagnetic wave orbital angular momentum (OAM) can be multiplexed as an information transmission carrier, thereby significantly improving the wireless transmission rate; recent studies have shown that in millimeter waves Frequency band based on orbital angular momentum modal multiplexing technology can achieve a wireless transmission rate of up to 32Gbit / s. Therefore, following frequency division, time division, code ...

AI Technical Summary

Problems solved by technology

[0004] However, the existing orbital angular momentum patch array antennas often have antenna polarization and mode reconstruction that are not flexible and convenient. Therefore, how to achieve small size, light weight, low cost and easy integration of the antenna, Increasing the capacity of wireless communication channels flexibly and easily has become a major problem in the industry

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