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Two-dimensional wave beam scanning antenna array based on SIW (Substrate Integrated Waveguide)

A technology of beam scanning and antenna array, which is applied to antenna unit combinations with different polarization directions, resonant antennas, etc., can solve the problem of limited number of beam scanning, and achieve the effect of miniaturization design and size reduction

Inactive Publication Date: 2015-12-23
NANJING UNIV OF SCI & TECH
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Problems solved by technology

[0003] However, since the output port phase difference provided by the 3dB directional coupler is only +90° and -90°, the number of beam scans in another dimension of the beam two-dimensional scanning network formed by it is limited.

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  • Two-dimensional wave beam scanning antenna array based on SIW (Substrate Integrated Waveguide)
  • Two-dimensional wave beam scanning antenna array based on SIW (Substrate Integrated Waveguide)
  • Two-dimensional wave beam scanning antenna array based on SIW (Substrate Integrated Waveguide)

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Embodiment 1

[0034] combine figure 1 , figure 2 with image 3 , the two-dimensional beam scanning array includes SIW slot antenna 20, dielectric substrate I [S1], dielectric substrate II [S2], dielectric substrate III [S3], dielectric substrate IV [S4], dielectric substrate V [S5], dielectric substrate Ⅵ[S6], metal layer [M0], metal layer Ⅰ[M1], metal layer Ⅱ[M2], metal layer Ⅲ[M3], metal layer Ⅳ[M4], metal layer Ⅴ[M5], metal layer Ⅵ[ M6], two Butler matrices 21 and a Butler matrix control network 22, the Butler matrix control network 22 controls the above two Butler matrices 21. The whole structure is composed of six dielectric substrates (18 layers of LTCC dielectric layers), where the dielectric constant of each dielectric substrate ε r is 5.9, the dielectric loss angle is 0.009, and the thickness H is 0.288mm, which is about 0.09λ 0 (where λ 0 is the free-space wavelength at 94GHz), and the width a of the SIW transmission structure of each layer of dielectric substrate is 1.086mm...

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Abstract

The invention discloses a two-dimensional wave beam scanning antenna array based on SIW (Substrate Integrated Waveguide). The two-dimensional wave beam scanning antenna array comprises structures including an SIW slot antenna, a first medium substrate, a second medium substrate and the like. Compared with a common two-dimensional wave beam scanning antenna array, the two-dimensional wave beam scanning antenna array improves a logic diagram of a two-dimensional wave beam scanning network and further usesmultiple groups of phase shifters with different phase shifting values, so that wave beam scanning of any angle can be realized on both two dimensions, and the gain of each wave beam can be above 11dBi. In addition, the structure is realized by an LTCC (Low Temperature Co-fired Ceramic) technology, an integral structure is designed into a multilayer structure by the multilayer characteristics of the LTCC, energy transmission is carried out among layers through slots, and the dimension of the integral structure is effectively reduced.

Description

technical field [0001] The invention relates to a two-dimensional beam scanning antenna, in particular to an SIW-based two-dimensional beam scanning antenna array. Background technique [0002] In recent years, two-dimensional beam scanning antenna is one of the hotspots in the field of antenna research. It has been widely used in radar, satellite communication, missile guidance, mobile communication, space detection, holographic imaging and other fields. Wei-YangChen et al. proposed a 16-port two-dimensional beam scanning network based on coplanar waveguides working at 60 GHz. The network consists of eight Butler matrices, which can realize 16 beam scanning in two dimensions. YuJianCheng et al. adopted a SIW-based two-dimensional beam scanning network working at 94GHz, which can realize four beam scanning. WilliamF.Moulder also introduced an 8-port beam scanning network, which works at 60GHz and consists of a Butler matrix and a 3dB directional coupler. The network can re...

Claims

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Application Information

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IPC IPC(8): H01Q9/04H01Q21/24
Inventor 车文荃杨亚洋杨琬琛范冲
Owner NANJING UNIV OF SCI & TECH
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