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3-bit phase-adjustable microstrip reflection unit

A reflection unit, phase technology, applied in electrical components, antennas, antenna grounding devices, etc., can solve the problems of small working bandwidth and large reflection loss

Active Publication Date: 2021-06-04
YANGTZE DELTA REGION INST OF UNIV OF ELECTRONICS SCI & TECH OF CHINE HUZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the reflective metasurface unit has the disadvantages of large reflection loss and small working bandwidth.

Method used

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  • 3-bit phase-adjustable microstrip reflection unit
  • 3-bit phase-adjustable microstrip reflection unit
  • 3-bit phase-adjustable microstrip reflection unit

Examples

Experimental program
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Embodiment Construction

[0026] like figure 1 As shown in the schematic diagram of the overall structure of , a 3-bit phase-adjustable microstrip reflection unit includes a F4B first dielectric substrate 1 with a thickness of 1 mm, a F4B second dielectric substrate 2 with a thickness of 1 mm, and an FR4 second dielectric substrate with a thickness of 0.4 mm. Three dielectric substrates 3, a metal floor 4 with a thickness of 4 mm, a structural unit 5 printed on the first dielectric substrate, a metal screw 6 for grounding and fixing, and a DC feed structure 7; the structural unit is printed on the The metal circular patch 50 on the front of the first dielectric substrate, the 8 identical phase delay lines 51 printed on the front and back of the first dielectric substrate 1, and the metal circular patch 50 and the 8 phase delay lines 51 loaded between 8 PIN diodes 53 between them; the DC feed structure 7 is composed of 8 first pads 70 printed on the first dielectric substrate 1, loaded on the 8 first pa...

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Abstract

The invention discloses a 3-bit phase-adjustable microstrip reflection unit. The 3-bit phase-adjustable microstrip reflection unit comprises three layers of dielectric substrates, a metal floor, a structural unit printed on the first dielectric substrate, a metal screw for grounding and fixing, and a direct-current feed structure; the structural unit is composed of a metal circular patch printed on the first dielectric substrate, eight segments of same phase delay lines and eight loaded PIN diodes, the on-off of the PIN diodes at different positions is adjusted through the direct-current feed structure, and the reflection phase of the reflection unit can be adjusted and controlled in a 3-bit quantization mode within the 360-degree range. Compared with the prior art, the 3-bit phase-adjustable microstrip reflection unit has the advantages that the volume of the reflection unit is small, three-bit compensation phase adjustment can be realized, the phase compensation accuracy is high, the loss of the reflection unit is small, and the working bandwidth is wide. The 3-bit phase-adjustable microstrip reflection unit can be used in the fields of radar systems, remote communication, spaceflight detection and the like, and has good economic benefits.

Description

technical field [0001] The invention belongs to the technical field of microwave and millimeter wave antennas, and relates to a microstrip reflection unit with adjustable 3-bit phase. Background technique [0002] In recent years, microstrip reflectarray antennas have been widely used in the fields of radar systems, long-distance communications and aerospace exploration. Compared with traditional large-aperture antennas, such as parabolic antennas and array antennas, microstrip reflectarray antennas have the advantages of small size, low profile, light weight, easy deployment, and low cost. With the in-depth research of researchers, microstrip reflectarray antennas Reflectarray antennas also show great potential in terms of reconfigurability, beamforming, and multi-frequency operation. Therefore, the microstrip reflectarray antenna will have broad application prospects in the future due to its superior performance. [0003] The microstrip reflectarray antenna is mainly com...

Claims

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Application Information

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IPC IPC(8): H01Q15/14H01Q1/50H01Q1/48
CPCH01Q15/14H01Q1/50H01Q1/48
Inventor 林先其黄晨路万家辉蔡杨
Owner YANGTZE DELTA REGION INST OF UNIV OF ELECTRONICS SCI & TECH OF CHINE HUZHOU