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A Miniaturized Broadband Slit Antenna with Fusion of Odd and Even Modes

A wide-band, odd-even technology, applied in the field of antenna components and antenna combination devices, can solve the problems of increasing antenna size, achieve low cross polarization, low cross-section, and improve utilization

Active Publication Date: 2022-06-21
XIDIAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this antenna needs to be implemented with a feed network, so the introduction of the feed network greatly increases the size of the antenna, and requires multiple slots instead of a single slot to excite

Method used

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  • A Miniaturized Broadband Slit Antenna with Fusion of Odd and Even Modes
  • A Miniaturized Broadband Slit Antenna with Fusion of Odd and Even Modes
  • A Miniaturized Broadband Slit Antenna with Fusion of Odd and Even Modes

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Experimental program
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Effect test

Embodiment 1

[0030] see Figure 1 to Figure 5 , a miniaturized broadband narrow slot antenna fused with odd and even modes, including a metal floor 1, a dielectric layer 4 and a microstrip layer that are stacked in sequence, and also includes a metal column 6 and a feed joint; the metal floor 1 is provided with a first A slit 2 and a second slit 3, the first slit 2 is composed of a bent portion and a straight portion 23; the straight portion 23 is connected to the second slit 3 through the bent portion; the first slit The width of the slot 2 is smaller than the width of the second slot 3; the microstrip layer is provided with a microstrip 5, one end of the microstrip 5 is connected to the feeding connector, and the other end is connected to the metal floor through the metal column 6 1 connection; the projection of the microstrip 5 falling on the metal floor 1 intersects the first slot 2 .

[0031]The microstrip 5 is used for feeding, and its connection with the metal post 6 excites multip...

Embodiment 2

[0033] On the basis of the above structure, the longitudinal direction of the straight portion 23 is consistent with the longitudinal direction of the second slit 3 .

Embodiment 3

[0035] On the basis of the above structure, the length direction of the straight portion 23 and the length direction of the second slit 3 are parallel to each other, and the straight portion 23 and the microstrip 5 are orthogonal to each other.

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Abstract

The invention provides a miniaturized broadband narrow-slot antenna with odd-even mode fusion, which includes a metal floor, a dielectric layer and a microstrip layer stacked in sequence, and also includes a metal post and a feed connector; the metal floor is provided with a first slit and the second slit, the first slit is composed of a bent portion and a straight portion; the straight portion is connected to the second slit through the bent portion; the width of the first slit is smaller than the width of the second slit; the microstrip layer is set There is a microstrip, one end of the microstrip is connected to the feed joint, and the other end is connected to the metal floor through a metal post; the projection of the microstrip on the metal floor intersects the first gap. The stepped and bent radiation slot, the total size of the slot is miniaturized, which not only ensures the high performance of the antenna with low profile, wide band, fusion of odd and even modes, low cross polarization, top radiation, and stable radiation, but also minimizes the antenna’s impact on the The impact of the shape of the carrier is conducive to the miniaturization of the antenna and the improvement of the utilization rate of the installation space.

Description

technical field [0001] The invention relates to the technical field of antenna components and antenna combination devices, in particular to a miniaturized broadband narrow slot antenna with parity and even mode fusion. Background technique [0002] With the rapid development of modern wireless communication systems, slot antennas have received more and more attention due to their advantages of low loss, small size, and light weight. However, the narrow bandwidth of the traditional single-mode radiated slot antenna greatly limits its application in communication systems. [0003] To solve this problem, in the past two decades, researchers have proposed some effective methods, such as reducing the aspect ratio of slot antennas to 1, introducing multiple radiating slots, introducing feed structures, and adopting multiple Radiation mode, etc. The patent "Tightly Coupled Slot Broadband Antenna" (CN 209709179 U) discloses that the bandwidth of the microstrip slot antenna is incr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/38H01Q1/48H01Q1/50H01Q13/10
CPCH01Q1/38H01Q1/48H01Q1/50H01Q13/106
Inventor 刘能武孙美娇傅光祝雷
Owner XIDIAN UNIV