Ultra-compacted microstrip patch array antenna

A technology of microstrip patch and array antenna, which is applied in the directions of antenna, antenna coupling, antenna array, etc., can solve the problems of poor unit isolation and large size of array antenna, and achieve the effect of improving isolation
CN106532248AActive Publication Date: 2017-03-22GUILIN UNIV OF ELECTRONIC TECH
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
GUILIN UNIV OF ELECTRONIC TECH
Publication Date
2017-03-22

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Abstract

The invention discloses an ultra-compacted microstrip patch array antenna. The ultra-compacted microstrip patch array antenna comprises a dielectric plate, an antenna array and a metal floor, wherein the antenna array and the metal floor are arranged on the dielectric plate; the antenna array consists of more than two antenna array units; each antenna array unit comprises a feeder line and a radiation patch; a decoupling network is arranged between the radiation patches of every two antenna array units; and a certain gap is reserved between the decoupling network and the two radiation patches; and each decoupling network adopts an interdigital structure formed by a left comb tooth and a right comb tooth which are inserted oppositely. According to the ultra-compacted microstrip patch array antenna, the electromagnetic mutual coupling between the arrays can be greatly lowered while the excellent bandwidth performance of the antenna unit is ensured, so that the miniaturization of the antenna is realized while certain performance is ensured, so as to realize the ultra-compacted structure of the array antenna.
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Description

technical field

[0001] The invention relates to the technical field of antennas, in particular to an ultra-compact microstrip patch array antenna. Background technique

[0002] With the development of modern wireless communication systems, wireless terminals have been developing in the direction of miniaturization. For microstrip array antennas installed in mobile device terminals, we have to adapt to this limited space by reducing the unit size or reducing the spacing between units. However, the reduction of the distance between the elements of the array antenna has the most direct impact on the increase of the coupling between the antenna elements. The energy of a unit can generate mutual coupling with the surrounding array elements through media such as dielectric plates and free space. The existence of this mutual coupling will have a series of effects on the radiation performance of the antenna array, such as pattern distortion, resonance point shift, and signal-to-no...

Claims

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