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Dual resistance belt ultra-broadband antenna based on non-symmetric stick line

An ultra-wideband antenna, asymmetric technology, applied in the direction of antenna, radiating element structure, waveguide-type device, etc., can solve the problems of large antenna volume, difficult adjustment of stopband center frequency, unfavorable system integration, etc., to achieve easy integration, increase The effect of stop-band function and strong practicality

Inactive Publication Date: 2008-08-13
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these methods have limitations, such as large antenna size, which is not conducive to system integration; the center frequency of the stop band is not easy to adjust; many antennas only have one stop band, etc.

Method used

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  • Dual resistance belt ultra-broadband antenna based on non-symmetric stick line
  • Dual resistance belt ultra-broadband antenna based on non-symmetric stick line
  • Dual resistance belt ultra-broadband antenna based on non-symmetric stick line

Examples

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Embodiment Construction

[0017] see figure 1 , represents a schematic structural diagram of an existing ultra-wideband antenna, the solid line shows the front structure, and the dotted line shows the back structure. The antenna is a monopole antenna. The dielectric plate 1 is made of FR4 plate with a dielectric constant of 4.4. The cost of this plate is very low, which can greatly reduce the cost of the antenna. The thickness of the plate is 0.8mm. The microstrip feeder port 2 is the energy input port and is connected to the SMA connector with a characteristic impedance of 50Ω. The width of the microstrip feeder needs to be reasonably designed so that the characteristic impedance of the feeder end matches the SMA connector. The asymmetric barbed line 4 is formed by etching on the microstrip line, and the width of the slot affects the width of the stop band. Generally speaking, the wider the groove, the larger the width of the stop band; the length of the barb line determines the resistance. The posit...

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Abstract

A double stop-band super-broadband antenna basing on the asymmetrical spinous line belongs to the wireless communication technique field. The antenna comprises a medium board (1) and a metal printing antenna arranged at two sides of the medium board (1); wherein the front side of the medium board (1) is arranged with a microstrip feed port (2), a microstrip feed line (3), an asymmetrical spinous line (4) and a microstrip radiating element (5), the microstrip feed line (3) is arranged at the central axis of the medium board (1), the upper part of the microstrip feed line (3) is connected with a microstrip radiating element (5), the lower part of the microstrip feed line (3) is a microstrip feed port (2), and the two sides of the middle part of the microstrip feed line (3) are arranged with asymmetrical spinous lines (4); and the lower part at the back side of the medium board (1) is arranged with an earth unit (6). The invention can effectively cover the request frequency band of FCC, namely 3.1-10.6GHz, at the same time two stop-bands can be generated in the frequency band. The antenna of the invention has the characters of low cost, simple structure and small volume.

Description

technical field [0001] The invention relates to an ultra-wideband antenna technology applicable to short-distance wireless communication and data transmission, which can effectively solve the problem that the broadband communication system is interfered by signals of other existing narrowband communication systems. Background technique [0002] In recent years, ultra-wideband (UWB) short-range wireless communication has attracted great attention in the field of global communication technology. UWB communication technology has become one of the most competitive and promising technologies for short-distance wireless communication due to its advantages of high transmission rate, strong anti-multipath interference ability, high confidentiality, and favorable for multi-functional integration. In February 2002, after the FCC released the license-free use of UWB, UWB technology quickly became a hot spot in the research and development of international wireless communications, and w...

Claims

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Application Information

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IPC IPC(8): H01Q1/38H01Q13/08H01P1/203
Inventor 赵亚辉徐金平殷康
Owner SOUTHEAST UNIV
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