5G ultra-wideband antenna used for wireless shielding device

Abstract

The invention discloses a 5G ultra-wideband antenna used for a wireless shielding device. The 5G ultra-wideband antenna used for the wireless shielding device comprises a PCB board, wherein an excitation unit and a radiation unit are arranged on the PCB board; a mainboard of the wireless shielding device is connected with the antenna by virtue of a coaxial feeder, a core wire of the coaxial feederis connected with the excitation unit, a shielding layer is connected with the radiation unit, and the radiation unit is grounded; and the excitation unit is in a gradual change shape that one is narrow and the other end is wide, bandwidth of the antenna is increased, and the bandwidth of the antenna covers a 5G working frequency band. The 5G ultra-wideband antenna used for the wireless shieldingdevice adopts the excitation unit in the gradual change shape, the bandwidth of the antenna is increased, the 5G working frequency band is covered, the bandwidth is very wide, frequency range is 2-12GHz, so that existing 5G frequency band requirement can be met, and follow-up 5G communication expansion can be well supported. The 5G ultra-wideband antenna used for the wireless shielding device hasthe advantages that support of the wireless shielding device on 5G is perfectly solved without increasing volume of the wireless shielding device, integration capability of the antenna is improved, cost is reduced, isolation is good, and the 5G ultra-wideband antenna can be adapted to a complex electromagnetic environment.

Description

technical field [0001] The invention relates to the field of radio frequency antennas, in particular to a 5G ultra-wideband antenna for a wireless jammer. Background technique [0002] In November 2017, the Ministry of Industry and Information Technology officially issued a notice to determine the frequency of my country's 5G (fifth-generation mobile communication), that is, the working frequency band of 5G, which is 3300MHz-3600MHz and 4800MHz-5000MHz. The peak rate of 5G can reach 20Gbps, which is 20 times that of 4G. In order to meet the ultra-high peak rate of 5G, higher requirements are placed on the antenna and spectrum bandwidth. [0003] At present, the existing wireless jammers basically do not support the 5G frequency band. Generally, the bandwidth of a single antenna of a jammer is 200-300MHz. For 5G wireless signal-based reconnaissance and cheating devices, there is a gap period. There are many 5G communication frequency bands and wide bandwidth. On the one han...

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Problems solved by technology

[0003] At present, the existing wireless jammers basically do not support the 5G frequency band. Generally, the single antenna bandwidth of the jammer is 200-300MHz. For 5G wireless signal reconnaissance and cheating devices, there is a gap period

There are many 5G communication frequency bands and wide bandwidth. On the one hand, the existing wireless jammer is huge. If the 5G frequency band is added, multiple antennas need to be added, and the space does not allow it.

On the other hand, the existing wireless jammers often need to install more than a dozen antennas, the internal electromagnetic environment is complex, and the antenna isolation is poor.

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