Low-frequency oscillator, antenna array and antenna device

Abstract

The invention relates to a low-frequency oscillator, an antenna array and an antenna device. The low-frequency oscillator comprises a balun feed part and a radiant panel. The balun feed part is provided with two balun feed lines used for transmitting signals in different polarization directions. The balun feeder line comprises a conversion section and a power section. And the conversion section is electrically connected with the power section. Four radiation strip lines are connected with the two coupling radiation arms arranged in the first direction, the four radiation strip lines are connected in parallel to form a radiation unit for transmitting electromagnetic wave signals in one polarization direction, and four radiation strip lines are connected with the two coupling radiation arms arranged in the second direction; the four radiation strip lines are connected in parallel to form a radiation unit for transmitting electromagnetic wave signals in another polarization direction, the purpose of parallel feeding of an oscillator can be achieved, and the antenna has great advantages in implementation of directional diagram indexes such as gain, horizontal plane beam convergence, front-to-back ratio and cross polarization ratio, namely, the directional diagram indexes can be better, and a circuit can be better.

Description

technical field [0001] The invention relates to the technical field of antenna communication, in particular to a low-frequency vibrator, an antenna array and an antenna device. Background technique [0002] With the rapid development of technology in the field of mobile communication, communication base stations have higher and higher requirements for antenna indicators; and the current situation of multi-standard operation of mobile communication and difficulty in site selection of base stations makes multi-frequency electric adjustable antennas the first choice for base stations. It occupies less space and is lighter in weight, so the multi-frequency electronically adjustable antenna with narrower cross-section can better reflect its advantages. Traditionally, the multi-frequency electronically tunable antenna adopts a nested combination arrangement of high-frequency radiation units (referred to as high-frequency dipoles) and low-frequency radiation units (referred to as l...

AI Technical Summary

Problems solved by technology

Especially when the low-frequency vibrator is a medium-fed half-wave vibrator, the low-frequency beam width is discrete, the cross-polarization ratio is poor, the high-frequency beam is discrete, the deformation is large, and the cross-polarization ratio is poor, which will cause gain loss. Compared with the nested combination setting method As far as high and low frequency oscillators are concerned, there are significant disadvantages in the realization of indicators