Device for reducing wireless electromagnetic wave interference on antenna

Abstract

The invention discloses a device for reducing a wireless electromagnetic wave interference on an antenna. A blocking surrounding method with electromagnetic wave inlets and outlets is adopted. A WIFIantenna is surrounded by an electromagnetic wave blocking material (such as a metal aluminum mesh); one or more electromagnetic wave signal inlets and outlets are reserved in a surrounding body; and in this way, an electromagnetic wave selection cover (wave selection cover) is formed. When a wavelength length condition is satisfied, electromagnetic waves with enough signal intensity, or incompleteintensity but a proper direction or an incomplete direction but a good intensity condition (i.e., two factors of intensity and the direction are synthesized or combined) can enter the cover and the antenna for communication, and an interference of other electromagnetic waves outside the cover on the antenna in the cover is reduced or eliminated. The same-frequency or adjacent-frequency interference on a WIFI router can be well reduced, and a WIFI Internet surfing speed of equipment such as a mobile phone and the like can be more stable and faster. Practical tests show that an effect is good,and the network speed obviously becomes more stable and faster.

Description

technical field [0001] The invention relates to a device for reducing the interference of an antenna by radio electromagnetic waves, and belongs to the field of anti-interference of radio signals. Background technique [0002] At present, the wireless WIFI signal is in the 2.4G frequency band, which is often interfered by the same frequency or adjacent frequency of different routers, resulting in slow Internet access speed of WIFI mobile phones, and often "stuck". Although about 13 channels are divided in the 2.4G frequency band, because more and more families use WIFI, the channels are still not enough and often interfere with each other. It is becoming more and more difficult to reduce frequency interference by setting different channels, because adjacent users There are too many router users. In addition to the router, other devices that use WIFI signals will also cause interference to the WIFI antenna of the router. Although WIFI still has a 5G frequency band, it suppo...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem that WIFI routers are often interfered by electromagnetic signals of the same frequency or adjacent frequencies, according to the characteristics of diffraction (diffraction) of electromagnetic wave propagation, the longer the wavelength of electromagnetic waves, the easier it is to have obvious diffraction (diffraction), and the shorter the wavelength of diffraction ( Diffraction) is less obvious, showing linear propagation

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