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Dual-frequency broadband butterfly planar antenna

A planar antenna and butterfly-shaped technology, which is applied to antennas, resonant antennas, and devices that enable antennas to work in different bands at the same time, can solve the problems of high profile, complex structure, and large volume of multi-frequency directional antennas, and achieve low cost. The effect of novel structure and small size

Pending Publication Date: 2018-01-26
NANJING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although a series of broadband directional antennas have been developed in recent years, however, these multi-frequency directional antennas are either complex in structure, or too large in size and high in profile.

Method used

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  • Dual-frequency broadband butterfly planar antenna
  • Dual-frequency broadband butterfly planar antenna

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Embodiment Construction

[0025] Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:

[0026] Such as figure 1 , figure 2 , image 3 As shown, the structure of the present invention is: the antenna is made on the dielectric substrate 2 whose dielectric constant range is 3-10, and the metal reflector is used for antenna directional radiation, and the metal reflector 1 is a rectangular metal plate with two ends folded into right-angled sides , the antenna radiation unit is composed of a top radiation unit and a bottom radiation unit, the top radiation unit is composed of a T-shaped microstrip line radiation unit 3, and the bottom radiation unit is a pair of butterfly patch radiation units 4, which are symmetrical to each other and have the same structure. The size is the same and the material is the same; the top radiation unit and the bottom radiation unit are connected by a coaxial feeder; the bottom end of the T-shaped structure ...

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Abstract

The invention discloses a dual-frequency broadband butterfly planar antenna and belongs to the technical field of microwaves. The antenna comprises a dielectric substrate, a metal reflecting plate, acoaxial feeder, a T-shaped microstrip line and a pair of butterfly patches. The antenna is manufactured on the dielectric substrate with a dielectric constant range of 3-10; and the antenna is provided with directional radiation by using the metal reflecting plate. A radiating element of the antenna comprises a top radiating element and a bottom radiating element; the top radiating element comprises the T-shaped microstrip line; the bottom radiating element comprises the pair of butterfly patches which is symmetrical with each other and the same in structure; and the planar antenna is formed by the dielectric substrate, the T-shaped microstrip line and the pair of butterfly patches. The antenna is fed in a coupling manner through the T-shaped microstrip line, and dual-frequency bandwidth of the antenna is achieved through adjusting the horizontal side length of the T-shaped microstrip line; and the dual-frequency broadband butterfly planar antenna has the advantages of being novel in structure, small in volume and low in manufacturing cost.

Description

technical field [0001] The invention relates to a dual-frequency bandwidth butterfly planar antenna, which belongs to the field of microwave technology. Background technique [0002] The earliest mobile communication only included a single frequency, or only worked for a single service, such as Personal Communication System (PCS) and Digital Mobile System (DCS), etc. These systems have their own separate wireless working equipment. With the development of wireless communication, wireless devices that can meet various application services emerge as the times require, from the initial single frequency band to multiple frequency bands and wide frequency bands. During this period, mobile communication technology has gone through several generations of development, from the second generation wireless communication technology represented by GSM and CDMA to the third generation communication technology represented by WCDMA and TD-SCDMA, and then developed into TD - The fourth-gene...

Claims

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Application Information

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IPC IPC(8): H01Q5/357H01Q9/04H01Q13/08H01Q15/18
Inventor 王灿程勇李亚丹
Owner NANJING UNIV OF POSTS & TELECOMM
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