Dual-band wide beam width millimeter wave microstrip antenna based on planar monopole antenna

Abstract

The invention provides a dual-band wide beam width millimeter wave microstrip antenna based on a planar monopole antenna. The dual-band wide beam width millimeter wave microstrip antenna comprises a dielectric substrate, a radiation patch, a reflecting floor and a coaxial feeder, the radiation patch and the reflecting floor are respectively arranged on both surfaces of the dielectric substrate, a U-shaped groove is formed in a front face of the radiation patch, the reflecting floor adopts a planar patch in the form of the monopole antenna, and the coaxial feeder penetrates through the dielectric substrate to connect the radiation patch and the reflecting floor. The dual-band wide beam width millimeter wave microstrip antenna provided by the invention effectively improves the communication efficiency of a radar system, reduces the effective radiation area of the antenna, greatly improves the semi-power beam width on a specified direction, effectively improves the anti-interference ability of the antenna in a combat communication system, is small in structure and is convenient to combine with a complete machine.

Description

technical field [0001] The invention relates to a microstrip antenna in the millimeter wave band, which is a miniaturized planar monopole antenna structure, which realizes a half-power lobe width of 104° in the horizontal direction and a half-power lobe width of 40° in the vertical direction. Background technique [0002] As the directional receiving and transmitting device of the radar system, the antenna has a variety of structural forms, such as microstrip form, horn form, reflective surface form, spiral shape, symmetrical array, etc.; according to the frequency band characteristics of the antenna, it can be divided into single-band antenna, Dual-band antennas and multi-band antennas. Each antenna with a combination of structural form and frequency band characteristics has its application scope and occasions. First of all, the current frequency resources are tight and the high-frequency communication frequency band is single, which affects the communication efficiency of ...

AI Technical Summary

Problems solved by technology

Each antenna with a combination of structural form and frequency band characteristics has its application scope and occasions. First of all, the current frequency resources are tight and the high-frequency communication frequency band is single, which affects the communication efficiency of the entire radar communication system. What follows is The delay in information acquisition time on the modern battlefield will inevitably delay fighters, so ordinary single-frequency antennas cannot meet the needs; secondly, in the radar communication system, in order to enable the radar to cover a larger control area with its own structure size fixed , the half-power lobe width of the traditional antenna is too narrow to cover a wide range, and when the radar is scanning, it cannot cover a wider area; finally, although the monopole antenna can cover almost omnidirectional in one direction, But the gain is too low, there is no way to meet the application requirements of higher power output and high directivity of the radar system

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