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Broadband multi-frequency-range printed antenna based on double sided parallel strip line (DSPSL) feed structure

A parallel line, multi-band technology, applied to the antenna, the structure of the radiating element, the device that makes the antenna work in different bands at the same time, etc., can solve the problems of multiple antenna parameters and difficulty in antenna design, achieve good radiation characteristics, and improve bandwidth. , good omnidirectional effect

Active Publication Date: 2013-12-25
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are many parameters of the antenna, which brings great difficulty to the antenna design.

Method used

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  • Broadband multi-frequency-range printed antenna based on double sided parallel strip line (DSPSL) feed structure
  • Broadband multi-frequency-range printed antenna based on double sided parallel strip line (DSPSL) feed structure
  • Broadband multi-frequency-range printed antenna based on double sided parallel strip line (DSPSL) feed structure

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Embodiment

[0057] according to figure 1 The structural diagram of the antenna of the present invention, and the processing example are verified. The specific dimensions of the instance are:

[0058] Dielectric substrate 1 adopts FR-4 (epoxy glass cloth laminated board), with a thickness of 1.0mm and a length of l 1 =122mm, width is w 1 =43mm; the distance between the first antenna radiation unit 2 and the left boundary of the dielectric substrate 1 is d 21 =2.1mm, the length of C branch 21 is l 21 =16mm, the length of D branch 22 is l 22 =40mm, the length of E branch 23 is l 23 =10mm, the length of F branch 24 is l 24 =21mm. The total length of the first antenna radiating element 2 is l 2 = l 21 +l 22 +l 23 +l 24 =87mm, width w 2 =1.8mm; the distance from the second antenna radiation unit 3 to the left boundary of the dielectric substrate 1 is d 31 =D 21 =2.1mm, the length of G branch 31 is l 31 =11.5mm, the length of H branch 32 is l 32 =24.5mm. The total length of the...

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Abstract

The invention discloses a broadband multi-frequency-range printed antenna based on a double sided parallel strip line (DSPSL) feed structure. The broadband multi-frequency-range printed antenna comprises a medium substrate, a first antenna radiation unit, a second antenna radiation unit, a microstrip feed line and a ground plate. The first antenna radiation unit, the second antenna radiation unit, the microstrip feed line and the ground plate are made of copper materials, and copper is applied to the surface of the medium substrate by using a laser technology or a corrosion technology. The first antenna radiation unit and the second antenna radiation unit are respectively printed on the front surface and the back surface of the medium substrate; the first antenna radiation unit and the second antenna radiation unit are overlapped in space; and a double sided parallel strip line structure is formed by a space overlapping portion. According to the invention, the double sided parallel strip line feed structure is adopted so that the bandwidth of the antenna is effectively improved; and all the branches of the antenna radiation antenna units have unified widths so that the antenna parameters are reduced and the design of the antenna is facilitated.

Description

technical field [0001] The invention relates to a mobile terminal built-in antenna suitable for a wireless communication system, more particularly, a wide-band multi-band printed antenna based on a double-sided parallel line (DSPSL) feeding structure, which belongs to the field of antenna technology. Background technique [0002] With the development of data communication and multimedia service requirements, the fourth-generation mobile communication that meets the needs of mobile data, mobile computing and mobile multimedia operations has begun to emerge. 4G is the abbreviation of the fourth generation mobile communication and its technology. It is a technical product that can transmit high-quality video images and the image transmission quality can be compared with high-definition television. However, the development of all technologies cannot be realized at one time. From 2G to 3G and then to 4G, continuous evolution is required, and these technologies can exist at the sa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/38H01Q5/01H01Q5/10
Inventor 陈爱新房见姜维维田凯强应小俊
Owner BEIHANG UNIV
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