Multi-order hexagonal densely stacked ultra-wideband microstrip antenna having concentric series ring control

A hexagonal close-packed, microstrip antenna technology, applied in the antenna grounding device, antenna grounding switch structure connection, radiating element structure and other directions, can solve the problem of difficulty in improving MIMO antenna isolation, and achieve improved impedance matching characteristics, Satisfy low-frequency matching and increase the effect of effective radiation area

Inactive Publication Date: 2018-10-02
XIAMEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Based on the research on the structure of left-handed materials and the research status of UWB-MIMO antennas at home and abroad, it can be seen that the design of left-handed materials in UWB-MIMO antennas is still very small, and most of them use SRR or CSRR structures for stopband structure design. It is difficult to improve the antenna isolation

Method used

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  • Multi-order hexagonal densely stacked ultra-wideband microstrip antenna having concentric series ring control
  • Multi-order hexagonal densely stacked ultra-wideband microstrip antenna having concentric series ring control
  • Multi-order hexagonal densely stacked ultra-wideband microstrip antenna having concentric series ring control

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Embodiment 1

[0035] Embodiment 1: see figure 1 , the present embodiment takes n=1, that is, a first-order multi-stage hexagonal close-packed ultra-broadband microstrip antenna controlled by concentric series rings. long R p =7mm, side length R of regular hexagon in inner ring p1 =5mm, radius R of the outer ring of the embedded ring 0 =3mm, radius R of the inner ring of the embedded ring 01 = 2mm connected short branches g n1 = 1 mm. see figure 2 , figure 2 It is a schematic diagram of the return loss of the first-order embodiment of the present invention and the regular hexagonal broadband microstrip antenna. Depend on figure 2 It can be seen that the low frequency of the hexagonal antenna with concentric serial ring control extends to 3.47GHz, while the regular hexagonal antenna is at 3.8GHz, so the concentric serial ring control structure does increase the length of the current path, which is conducive to miniaturization and reduced antenna size.

Embodiment 2

[0036] Example 2: see image 3 , the present embodiment takes n=2, and the side length R of the outer ring of the regular hexagon p =4mm, side length R of the inner ring of regular hexagon p1 = 3mm, the radius of the outer ring of the embedded ring R0 = 2mm, the radius of the inner ring of the embedded ring R 01 =1mm, connected short branches g n1 = 1 mm. see Figure 4 , the present embodiment takes n=3, and the side length R of the regular hexagon p =2.8mm, side length R of regular hexagon of inner ring p1 =1.8mm, radius R of the outer ring of the embedded ring 0 =1.4mm, radius R of the inner ring of the embedded ring 01 =0.8mm, connected short branches g n1 = 0.6 mm. Depend on Figure 5 It can be seen that with the expansion of the structure, the current path has been greatly enriched and extended, so the spectrum width has been expanded. The working frequency band of the first-order antenna is 3.47-9.77GHz, and the matching of the middle frequency band is relativ...

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Abstract

The invention provides a multi-order hexagonal densely stacked ultra-wideband microstrip antenna having concentric series ring control. A substrate is arranged. The upper surface of the copper clad surface of the substrate is provided with a radiation patch, an impedance matching input transmission line, a left rectangular metal grounding plate and a right rectangular metal grounding plate. The left and right rectangular metal grounding plates are symmetrically distributed on the two sides of the impedance matching input transmission line. The lower feed-in other end of the impedance matchingtransmission line is connected with the first order basic unit of the radiation patch. The left and right sides of the impedance matching transmission line are provided with the rectangular metal grounding plates. The structure of the radiation patch is formed by the embedded concentric series ring controlled densely stacked regular hexagonal ring basic units which are piled and extended order byorder from the bottom to the top. Each concentric series ring controlled regular hexagonal ring basic unit is formed by an outer ring of which the inner and outer edges are regularly hexagonal with inner embedding of a concentric ring. The inner concentric ring is formed in a way that upper and lower segments of inductance bridges are connected with the outer hexagonal ring. The outer contour planes of the regular hexagonal rings are densely stacked so as to form the communicated multi-order radiation units having multi-electromagnetic inner ring control.

Description

technical field [0001] The invention relates to an ultra-broadband microstrip antenna, in particular to a multi-order hexagonal close-packed ultra-broadband microstrip antenna with concentric series connection ring control. Background technique [0002] UWB antennas have a long history. In 1898, the British scientist Lodge proposed a broadband biconical antenna, and then UWB antenna design technology continued to develop. From 1939, Cater improved the biconical antenna and designed a conical monopole antenna to 1948 when Brillouin introduced it. Coaxial horn antenna, and then to the planar helical antenna and logarithmic periodic antenna proposed in the 1950s. Nowadays, the research of UWB antennas mainly focuses on the planar printed microstrip antennas with the advantages of miniaturization, low profile, easy processing, and easy conformality. [1] . The history of research on MIMO antennas is relatively late. Scholars from various countries in the early stage focused on ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/38H01Q1/48H01Q1/50
CPCH01Q1/38H01Q1/48H01Q1/50
Inventor 游佰强洪志友程飞李伟文
Owner XIAMEN UNIV
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