Miniaturized broadband dual-polarized magnetoelectric dipole millimeter wave edge-emitting antenna and array thereof

Abstract

The invention discloses a miniaturized broadband dual-polarized magnetoelectric dipole millimeter wave edge-emitting antenna and an array thereof. The edge-emitting antenna comprises a top metal layer(1), a first dielectric layer (2), a second metal layer (3), a second dielectric layer (4), a third dielectric layer (5), a third metal layer (6), a fourth dielectric layer (7), a fifth dielectric layer (8) and a bottom metal layer (9) which are sequentially arranged from top to bottom. A size of a transverse electric dipole is reduced through a longitudinal bending structure, miniaturization isfurther achieved, meanwhile, a dual-polarized antenna array composed of the antenna is also provided, and a millimeter wave antenna and an array structure which are wide in impedance bandwidth, low incomplexity feed structure, low in feed profile and easy to directly integrate in two polarization directions are achieved. In the invention, more than 50% of dual-polarization impedance bandwidth canbe obtained, an in-band gain fluctuation is also lower than 3dB, and a stable directional diagram is provided.

Description

technical field [0001] The invention belongs to microwave and millimeter wave communication, in particular to a miniaturized broadband dual-polarized magnetoelectric dipole millimeter wave edge-fire antenna and an array thereof. Background technique [0002] With the surge in the number of mobile terminal users, global mobile data traffic continues to grow at an unprecedented rate, and the current 4G mobile network capacity will not be sustainable in the long run. One of the main differences in 5G cellular systems compared to 4G systems is the shift to millimeter wave bands, where wider bandwidths are more readily available at higher frequency bands. Therefore, broadband millimeter-wave device antennas, which are key components in millimeter-wave wireless systems, urgently need to be designed and developed. Among various millimeter-wave antennas, the planar millimeter-wave array antenna is very promising because of its high gain and the advantages of being directly integrat...

AI Technical Summary

Problems solved by technology

First, when most millimeter-wave substrate-integrated magnetoelectric dipoles are expanded into array antennas, their bandwidth tends to be significantly narrowed; second, most millimeter-wave substrate-integrated magnetoelectric dipoles only realize The performance of single polarization or circular polarization has limited ability to receive information from different directions; thirdly, most of the feed networks of millimeter-wave substrate integrated magnetoelectric dipole antenna arrays mostly use slot coupling feed, Therefore, it is difficult to achieve direct integration with millimeter-wave front-end circuit chips; in addition, the bandwidth of most millimeter-wave dual-polarization substrate integrated magnetoelectric dipole array antennas is lower than 40%, and there is still room for improvement

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