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Gradient multi-order rectangular close-packed frequency-expanding quasi-self-compensating antenna

A close-packed, rectangular technology, applied in the field of gradual multi-order rectangular close-packed frequency-extended quasi-self-complementary antennas, can solve problems such as difficult regulation, large energy loss in design technology, and insufficient bandwidth, to achieve large radiation gain and improve impedance matching characteristics, the effect of increasing the effective radiation area

Active Publication Date: 2021-05-07
XIAMEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, most of the above designs are based on the deformation of the original patch, and the design technology has a series of defects such as large energy loss, insufficient bandwidth, and difficult control.

Method used

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  • Gradient multi-order rectangular close-packed frequency-expanding quasi-self-compensating antenna
  • Gradient multi-order rectangular close-packed frequency-expanding quasi-self-compensating antenna
  • Gradient multi-order rectangular close-packed frequency-expanding quasi-self-compensating antenna

Examples

Experimental program
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Effect test

Embodiment 1

[0027] see figure 1 , the present embodiment takes n=1, that is, a first-order gradient rectangular close-packed frequency extension quasi-self-complementary antenna, and its left radiation patch is a rectangle, with a length of L2=5.6mm and a width of W2=3.8mm; the rectangular radiation patch There is a rectangular gap in the upper right corner of the chip, the length of which is L3=1.1mm, and the width is W3=0.3mm; a 50-ohm impedance matching input microstrip feeder is used, and the length is L1=7.5mm, and the width is W1=2.3mm; figure 2 It is the rear view of the first-order embodiment, the height of the lower end of the metal ground plate is Lg=8mm, and the width is equivalent to the outer contour width of the low-power high-performance dielectric double-sided copper-clad substrate, which is Wg=W=12mm, on the top of the metal ground plate There is a semicircular groove for controlling impedance matching, the horizontal distance between the center of the circle and the lef...

Embodiment 2

[0029] see image 3 , the present embodiment takes n=2, that is, the second-order gradient rectangular close-packed frequency expansion quasi-self-complementary antenna, the rectangular basic unit with the scale control ratio of each layer takes the same size, its length is L2=3.1mm, and its width is W2=2.75 mm; the length of the gap in the upper right corner of the left radiation patch is L3=1mm, and the width is W3=0.3mm; a 50-ohm impedance matching input microstrip feeder is used, and its length is L1=6.5mm, and its width is W1=2.3mm; metal connection The shape of the floor is the same as that of the first-order embodiment. The height of the lower end of the metal ground plate is Lg=7.8mm, and the width is equivalent to the width of the outer contour of the low-power and high-performance dielectric double-sided copper-clad substrate, which is Wg=W=12mm. There is a semicircular groove on the top of the grounding plate to control impedance matching. The horizontal distance be...

Embodiment 3

[0031] see Figure 4 , the present embodiment takes n=3, that is, the third-order gradient rectangular close-packed frequency-expanding quasi-self-complementary antenna, the rectangular basic unit with the scale control ratio of each layer takes the same size, its length is L2=2.5mm, and its width is W2=1.85 mm; the length of the gap in the upper right corner of the left radiation patch is L3=0.8mm, and the width is 0.2mm; a 50-ohm gradual impedance matching input microstrip feeder is adopted, and its length is L1=5.3mm, and the width is gradually changed to W1=2.3mm 1.5mm; the shape of the metal ground plate is the same as that of the first-order embodiment, the height of the lower end of the metal ground plate is Lg=6.2mm, and the width is equivalent to the outer contour scale width of the low-power high-performance dielectric double-sided copper-clad substrate, which is Wg=W= 12mm, on the top of the metal grounding plate, there is a semicircular groove for controlling imped...

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Abstract

The invention discloses a gradient multi-order rectangular close-packed frequency-expanding quasi-self-compensating antenna, and relates to an ultra-wideband antenna. The antenna is provided with a low-consumption high-performance dielectric double-sided copper-clad substrate, wherein the upper surface of the copper-clad surface is provided with two mutually quasi-self-complementary radiation patches and an impedance matching input microstrip feeder line; the lower surface of the copper-clad surface is a metal grounding plate; a groove is engraved on the metal grounding plate; the other end of the impedance matching microstrip feed line which is fed in from the lower part is connected with the first layer basic unit of the left radiation patch; a rectangular notch is formed in the upper right corner of the left radiation patch; the left radiation patch is formed by stacking and extending a series of closely-packed rectangular basic units with scale control ratios step by step from bottom to top; the rectangular close packing mode is formed by stacking from bottom to top, and is formed by recursive composition in a mode that the upper order has one more basic unit than the lower order; the right radiation patch is of a quasi-self-compensation structure which is paired with the left radiation patch; the right copper-clad part is opposite to the left copper-clad part; and the side length of each layer of rectangular basic unit with the scale control ratio of the left radiation patch is gradually changed according to a certain ratio. The effective radiation area of the antenna is improved.

Description

technical field [0001] The present invention relates to ultra-wideband antennas, in particular to a gradually changing multi-order rectangular close-packed frequency expansion quasi-self-complementary antenna that can be used to expand antenna bandwidth and multi-band coverage antenna design, including UWB, 5G, and multi-application compatible communication systems. Background technique [0002] Since the U.S. Federal Communications Commission made regulations on UWB frequency bands in 2002, scientists around the world have been working on UWB technology. There are many types of ultra-wideband antennas, most of which are completed around the deformation of the monopole antenna radiation veneer; some use fractal recursion, multi-resonance radiation pieces (radiation rods), etc. After the increase in frequency bands for wireless communication applications, multi-standard integrated multi-compatible design has also become a research and development hotspot. [0003] All kinds ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/38H01Q1/50H01Q13/10H01Q5/25H01Q5/307H01Q5/50
CPCH01Q1/38H01Q1/50H01Q13/10H01Q5/25H01Q5/307H01Q5/50
Inventor 游佰强施利峰游京霖朱建基许爱睿李丰安
Owner XIAMEN UNIV
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