Microwave antenna wide-frequency flexible antenna cover

Abstract

Provided is a microwave antenna wide-frequency flexible antenna cover having the periphery fixed on a fence surrounding the antenna and opposite to the reflection surface of the antenna, the antenna cover is formed by compounding a high-molecular polymer outer layer and a composite fiber textile structure layer mixed with a shielding wave-absorbing filament, a tensioning element used for being connected with a traction mechanism is arranged on one surface, facing the antenna reflection surface, of the antenna cover, the traction mechanism is connected to the inner wall of the fence, and a traction force which enables the antenna cover to change to form a concave surface acts on the antenna cover via the tensioning element. The antenna cover of the structure is good in wave permeability, and the thickness of the antenna cover does not need to be selected according to the working wavelength of the antenna. The antenna cover with a uniform thickness can obtain lower antenna insertion lossin multiple frequency bands, the use of a multi-frequency-band microwave antenna can be met, and the universality of the antenna cover is realized in a relatively wide frequency range, and the defectthat traditional antenna covers made of ABS and other materials have different frequency bands and have poor specificity is overcome.

Description

technical field [0001] The invention relates to a radome for a microwave antenna, in particular to a flexible radome for a microwave antenna that meets the requirement of wide frequency band. Background technique [0002] In the existing point-to-point communication system, the microwave antenna is an indispensable part of the system. In recent years, with the continuous development of the global microwave antenna industry, the antenna performance needs to be higher and higher. The user experience and production of microwave antenna The versatility of the system has put forward higher requirements. [0003] As an important part of the microwave antenna, the radome is installed outside the antenna and is a structure that protects the microwave antenna system from the external environment. The purpose of setting the radome mainly includes the following aspects: [0004] 1. Use the radome to establish a closed area to protect the microwave antenna system from external natural ...

AI Technical Summary

Problems solved by technology

[0010] However, microwave antennas cover multiple frequency bands. One thickness specification of the radome designed according to the wavelength cannot adapt to multiple frequency bands. If the thickness of the radome is designed according to the working wavelength, microwave antennas in different frequency bands must adopt different thickness specifications. radome

The differences in radome specifications for different frequency bands make them unsuitable for general use, which not only leads to high production costs, such as the need for multiple production lines, multiple molds, etc., but also increases the risk of mixing materials during production or assembly

[0011] Moreover, for individual low-frequency microwave antennas, if a half-wavelength dielectric thickness is used, the weight of the antenna will inevitably increase due to the influence of thickness, which will inevitably bring a bad experience to users.

[0012] In addition, the radome is formed into a concave or convex surface shape with a certain angle through the thermoforming process. The processing cost of this method is also relatively high, which is not conducive to reducing operating costs for manufacturers.

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