Ultra-wideband high-gain beam up-tilt omnidirectional antenna

Abstract

The invention discloses an ultra-wideband high-gain beam up-tilt omnidirectional antenna, comprising a first wideband sub-array and a second wideband sub-array which are coaxially arranged on the samedielectric substrate, wherein array elements of the two sub-arrays are different, the minimum array element number is 1, the array elements are U-shaped symmetric oscillators, the dielectric substrate is further provided with feeding lead wires, oscillators of the first wideband sub-array and the second wideband sub-array are connected with feeding cables by means of the feeding lead wires, the characteristic impedance of the feeding cable connected with the first wideband sub-array is Z01, the characteristic impedance of the feeding cable connected with the second wideband sub-array is Z02,the input impedance of the first wideband sub-array Zin1 equals the characteristic impedance of the feeding cable connected with the same, and the input impedance of the second wideband sub-array Zin2equals the characteristic impedance of the feeding cable connected with the same, that is, Z01=Zin1, and Z02=Zin2. The ultra-wideband high-gain beam up-tilt omnidirectional antenna disclosed by the invention has the advantages of having ultra wideband, high gain, high power, high efficiency and simple structure, and being horizontally omnidirectional, beam up-tilt, light and portable, and economical and durable.

Description

【Technical field】 [0001] The present invention relates to an omnidirectional antenna device and technology, in particular to a miniaturized ultra-broadband high-gain beam-up omnidirectional antenna suitable for a UAV ground control station and its technology. 【Background technique】 [0002] With the development of the aviation industry and information technology, human beings have entered the era of drones. UAVs are suitable for performing various tasks, and have the advantages of high cost performance, and have broad application prospects in both military and civilian fields. For military use, UAVs are used for map surveying, intelligence reconnaissance, battlefield surveillance, enemy attacks, relay communications, etc.; for civilian use, UAVs are used for aerial photography, logistics express and scientific exploration. At present, China is leading the world in the field of drones. Typically, drones rely on radio remote control from a ground station to perform various t...

AI Technical Summary

Problems solved by technology

Obviously, the conventional coaxial array of oscillators is difficult to meet the above broadband and multi-band requirements, and it is necessary to find another way to expand the bandwidth

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