High-isolation ultrashort-wave three-band integrated antenna structure

Abstract

The present invention discloses a high-isolation ultrashort-wave three-band integrated antenna structure which comprises a whip antenna body. The whip antenna body comprises: a lower radiating body, alower whip body and an upper whip body which are connected successively, wherein cross sections of the lower radiating body, the lower whip body and the upper whip body have circular structures; anda first electromagnetic wave transmitting body, a second electromagnetic wave transmitting body and a third electromagnetic wave transmitting body, wherein the first electromagnetic wave transmittingbody, the second electromagnetic wave transmitting body and the third electromagnetic wave transmitting body are positioned inside the lower radiating body. The structure provided by the present application integrates the communication of three bands, i.e., 27.5 MHz-39.5 MHz, 150 MHz-170 MHz, and 350 MHz-370 MHz, provides wide and unobstructed view, does not affect the observation of other devicesand persons for marine targets, and has obvious advantage of minimal view obstruction. An antenna radiating apparatus composed of a plurality of combined sheet radiating bodies is adopted inside theantenna body, thereby ensuring perfect transmission of frequencies of three bands on the same antenna and excellent standing wave performance.

Description

technical field [0001] The invention relates to the technical field of antenna communication, in particular to a high-isolation ultrashort wave three-band integrated antenna structure. Background technique [0002] At present, short-wave and ultra-short-wave radio communication is that each radio station transmits and receives through an antenna of a corresponding frequency. When multiple radio stations are used at the same time, it will inevitably result in the establishment of multiple antennas with different heights, different specifications and different frequencies, which will block the view and increase the difficulty of maintenance, especially on ships with relatively tight space. At the same time, the antennas are relatively close and are likely to cause interference. It is extremely difficult to integrate multiple frequency bands in the shortwave ultrashortwave frequency range into a single antenna for communication. The multi-band fusion of high-frequency antenna...

AI Technical Summary

Problems solved by technology

The multi-band fusion of high-frequency antennas is easier than that of low-frequency antennas. The frequency interval of low-frequency antennas is narrow, and it is easy to cause mutual interference between frequencies and antennas. The standing wave of the antenna is too large, which affects the radio transmission efficiency.

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