Dual-polarization broadband millimeter wave filtering antenna based on metasurface and communication equipment

A filtering antenna and millimeter wave technology, applied in antennas, slot antennas, antenna grounding devices, etc., can solve the problems of large interconnection loss, unsuitable for integration, and low filter Q value, and achieve reduced volume and good suppression level , the effect of wide bandwidth

Active Publication Date: 2021-09-17
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the millimeter wave frequency band, the Q value of the filter is too low to be integrated in the chip, and the separate package also faces the problem of large interconnection loss.

Method used

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  • Dual-polarization broadband millimeter wave filtering antenna based on metasurface and communication equipment
  • Dual-polarization broadband millimeter wave filtering antenna based on metasurface and communication equipment
  • Dual-polarization broadband millimeter wave filtering antenna based on metasurface and communication equipment

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Effect test

Embodiment 1

[0041] Such as figure 1 and Figure 5 As shown, a metasurface-based dual-polarized broadband millimeter-wave filter antenna adopts LTCC processing technology, and the thickness of each layer of LTCC dielectric substrate is 0.094mm. It includes two layers of superimposed dielectric substrates, specifically an upper dielectric substrate 3 and a lower dielectric substrate 8, the upper surface of the upper dielectric substrate is provided with a metasurface structure 1, and the upper and lower surfaces of the lower dielectric substrate are respectively provided with an upper metal floor 6 and the lower metal floor 14 , the ground metal branch 4 is arranged in the upper dielectric substrate, and the ground metal branch is connected to the upper metal floor 6 through the metal ground post 5 .

[0042] The shape of the grounded metal branch is not limited to the elongated branch, and may also be trapezoidal, T-shaped and so on.

[0043] The upper end of the metal grounding column 5...

Embodiment 2

[0066] A communication device, comprising the metasurface-based dual-polarized broadband millimeter-wave filter antenna described in Embodiment 1.

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Abstract

The invention discloses a dual-polarization broadband millimeter wave filtering antenna based on metasurface, and the antenna comprises two layers of dielectric substrates which are arranged in an overlapped mode, an upper layer metal floor and a lower layer metal floor are arranged on the upper surface and the lower surface of the lower layer dielectric substrate respectively, a metasurface structure is arranged on the upper surface of the upper layer dielectric substrate, the metasurface structure comprises N metal patches arranged in an array mode, a gap is etched in each metal patch, the upper-layer dielectric substrate is connected with the upper-layer metal floor, and a Jerusalem cross gap is etched in the upper-layer metal floor. The antenna is simple in structure, radiation and filtering can be achieved at the same time under the condition that the antenna size is not increased, the size of the radio frequency front end is greatly reduced, and no extra insertion loss exists.

Description

technical field [0001] The invention relates to the field of antennas, in particular to a metasurface-based dual-polarization broadband millimeter-wave filter antenna and communication equipment. Background technique [0002] With the development and application of 5G technology, Massive MIMO antenna technology has become a key technology of 5G. In order to integrate more RF transceiver channels and antenna units in a limited space to realize the coexistence of multi-band systems, the antenna system is developing in the direction of miniaturization, low power consumption, and multi-band. Antennas and filters are very important passive components in the front end of RF systems, and performance design is particularly important. The traditional design of directly using matching devices or matching networks to cascade filters and antennas not only increases the overall size of the system, but also increases insertion loss. , which seriously deteriorates the overall efficiency o...

Claims

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Application Information

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IPC IPC(8): H01Q1/48H01Q1/38H01Q15/00H01Q1/50H01Q13/10
CPCH01Q1/48H01Q1/38H01Q15/0086H01Q1/50H01Q13/10Y02D30/70
Inventor 杨琬琛黄婧车文荃薛泉刘洽广
Owner SOUTH CHINA UNIV OF TECH
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