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Unilateral and dual polarized ultra-wide band antenna

An ultra-wideband antenna and dual-polarization technology, which is applied to antenna unit combinations, antennas, and antenna arrays with different polarization directions, can solve problems such as low gain, narrow bandwidth, and unstable radiation pattern, and achieve stable radiation direction , high gain and efficiency, low back lobe reflection effect

Active Publication Date: 2014-03-26
GUANGDONG BROADRADIO COMM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the radiation patterns of most UWB antennas are conical, and there are few UWB antenna designs with unidirectional radiation patterns, such as the literature H. Schantz, The Art and Science of Ultrawideband Antennas. Norwood, MA: Artech House , The UWB antenna with unidirectional radiation pattern designed in 2005 has unstable radiation pattern and low gain, which is difficult to meet the application requirements
Microstrip patch antenna can achieve unidirectional radiation pattern, but the bandwidth is narrow
The bandwidth of the microstrip patch antenna can be widened by adopting some improved techniques, but its radiation pattern and gain are still unstable in the working frequency band

Method used

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  • Unilateral and dual polarized ultra-wide band antenna
  • Unilateral and dual polarized ultra-wide band antenna
  • Unilateral and dual polarized ultra-wide band antenna

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0059] Figure 1-5The geometry of a dual-polarized UWB unidirectional antenna is shown. The upper layer of the antenna is composed of 2 identical butterfly-shaped electric dipoles, each sector arm radius is 22mm and has 41.7 o Radian, four fan-shaped arms are evenly spaced. The width of the first arc-shaped microstrip line 10, the second arc-shaped microstrip line 11, the third arc-shaped microstrip line 12 and the fourth arc-shaped microstrip line 13 is 0.3 mm. The first vertical matching circuit structure dielectric substrate 16 , The thickness of the dielectric substrate 17 of the second vertical matching circuit structure is 1.57 mm. The dipole legs at the end near the center of each sector arm are connected to the vertical part of the antenna (vertical matching circuit configuration). The height of the first vertical matching circuit structure dielectric substrate 16 and the second vertical matching circuit structure dielectric substrate 17 is 20mm. The side length of ...

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Abstract

The invention discloses a unilateral and dual polarized ultra-wide band antenna. The antenna comprises: a dual polarized electric dipole oscillator sheet, which is at an upper layer; a vertical matching circuit structure, which is in the middle; and a substrate reflecting plate, which is at a lower layer. The substrate reflecting plate is a plane substrate reflecting plate or an inverted truncated cone-shaped substrate reflecting plate; a substrate of the vertical matching circuit structure comprises two pairs of circular-arc monopole pasters with vertical gradual types; and the dual polarized electric dipole oscillator sheet includes two pairs of electric dipoles. According to the invention, because of natural complementarity in structure, a working frequency of the antenna is an ultra bandwidth communication frequency. Besides, the antenna has a unilateral radiation directional diagram and a radiation direction is stable; and the antenna has high gains and high benefits. Therefore, the antenna provided in the invention is suitable for various ultra-wide wireless communication systems.

Description

technical field [0001] The invention relates to an antenna in the field of wireless communication, in particular to a unidirectional dual-polarization ultra-wideband antenna. Background technique [0002] Ultra-Wide Band (UWB) communication technology has become a very competitive and promising short-distance wireless communication technology due to its advantages of high transmission rate, strong anti-multipath interference ability, high confidentiality, and multi-functional integration. One of the techniques. In view of this, the U.S. Federal Communications Commission (FCC) approved UWB communication technology as a general commercial communication system in February 2002, and regulated UWB communication as a high transmission rate (data rate greater than 100Mb per second), Low power (power less than -41dBm / MHz) and short distance (communication radius less than 10 meters) communication system, the operating frequency range is between 3.1GHz-10.6GHz. [0003] At present,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/36H01Q1/38H01Q19/10H01Q21/00H01Q21/24
Inventor 吴壁群
Owner GUANGDONG BROADRADIO COMM TECH