A low profile LTCC millimeter wave dual polarization array antenna

Abstract

The invention discloses a low-profile LTCC millimeter wave dual-polarization array antenna, comprising: electromagnetic waves input from a port 1 are transmitted in an intermediate layer power split structure, are coupled into an upper layer power split structure through a slot 3, are coupled into an antenna element through the slot 1, and polarization in a direction 1 is generated; The electromagnetic wave inputted from the port 2 is transmitted in the lower power division structure, coupled into the middle power division structure through the slot 5, coupled into the upper power division structure through the slot 4, coupled into the antenna unit through the slot 2, and polarized in the direction 2; As that electromagnetic wave is polarize in the receiving direction 1, the electromagnetic energy enter the upper work division structure through the slit 1 and enters the middle work division structure through the slit 3; As that electromagnetic wave is polarize in the receiving direction 2, the electromagnetic energy enter the upper power split structure through the slot 2, couples into the middle layer power split structure through the slot 4, and couples into the lower layer powersplit structure through the slot 5. The invention realizes antenna high gain, wide frequency band and high isolation of two ports.

Description

technical field [0001] The present invention relates to the technical field of millimeter-wave antennas, and more particularly, to a low-profile low-temperature co-fired ceramic (LTCC, Low Temperature Co-fired Ceramic) millimeter-wave dual-polarization array antenna. Background technique [0002] With the continuous development of wireless communication, the spectrum resources of microwave and below are increasingly tight. To solve this problem, people gradually shift their attention to the millimeter wave frequency band. Compared with the microwave frequency band, millimeter wave has the advantages of wide frequency band, narrow beam, fast transmission rate, strong detection ability, strong anti-interference ability, and good penetration. This makes mmWave systems widely used in high-speed data transmission, space communication, precision guidance, and high-resolution imaging radar. As a key component in a millimeter wave system, the performance of the millimeter wave ante...

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Problems solved by technology

[0006] Aiming at the defects of the prior art, the purpose of the present invention is to solve the technical problems that the existing LTCC antenna technology deteriorates the standing wave characteristics in the millimeter wave band, the antenna bandwidth is narrowed, the cross-polarization characteristics are deteriorated, and the antenna gain is not high.

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