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Small-size ultra wide-band microstrip antenna with band-stop characteristic

A microstrip antenna and ultra-wideband technology, which is applied in the direction of antenna, antenna grounding device, radiating element structure, etc., can solve the problem that the design of improved bandwidth is rare, and achieve the effect of improving reflection loss and impedance matching

Inactive Publication Date: 2014-07-23
ZHENGZHOU UNIVERSITY OF LIGHT INDUSTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] So far, there have been many designs of ultra-wideband antennas with band-stop characteristics, and various methods of miniaturization, widening bandwidth and band-stop technology have been proposed, but there are few designs on adjusting the microstrip line structure to improve bandwidth.

Method used

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  • Small-size ultra wide-band microstrip antenna with band-stop characteristic
  • Small-size ultra wide-band microstrip antenna with band-stop characteristic
  • Small-size ultra wide-band microstrip antenna with band-stop characteristic

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Embodiment Construction

[0025] The present invention will be described in detail below in conjunction with specific embodiments.

[0026] Small ultra-wideband microstrip antenna element with band-stop characteristics.

[0027] The band-stop ultra-broadband microstrip antenna unit of the present invention adopts gradients (4), gradients (5), gradients (6) and rectangular branches (1), rectangular branches (2), and rectangular branches (3) on the front of the dielectric board (20). ) in a combined manner; the ground plane (15) on the back of the dielectric board (20) is provided with rectangular slots (7), rectangular slots (8), rectangular slots (9), and rectangular slots (10) to strengthen the ground plane ( 15) The electric field coupling between the microstrip line (14), the left and right symmetrical rectangular cutouts (17) and rectangular cutouts (21) on the ground plane (15) are used to adjust the radiation unit (12) and the ground plane (15) The reactance component between; Radiation unit (12...

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Abstract

The invention discloses a small-size ultra wide-band microstrip antenna with a band-stop characteristic, wherein the front side of a dielectric plate (20) is fed in the manner that gradual change (4), gradual change (5) and gradual change (6) are combined with a rectangular side branch knot (1), a rectangular side branch knot (2) and a rectangular side branch knot (3); and a ground plane (15) at the back of the dielectric plate (20) is provided with a rectangular groove (7), a rectangular groove (8), a rectangular groove (9) and a rectangular groove (10) for enhancing the electric field coupling between the ground plane (15) and a microstrip antenna (14), and the ground plane (15) is symmetrically provided with a rectangular incision (17) and a rectangular incision (21) left and right for adjusting the reactive component between a radiating unit (12) and the ground plane (15). The reflection loss of the unit antenna is less than -10dB within the frequency band range from 3.1GHz to 10.9GHz; and the small-size ultra wide-band microstrip antenna is better in omnidirectional radiation characteristic. The stop band is 4.9GHz-5.9GHz, so that the jamming of WLAN (wireless local area network) frequency band can be effectively obstructed.

Description

technical field [0001] The invention belongs to the technical field of microstrip antennas, in particular to a miniaturized ultra-wideband antenna unit with band-stop characteristics. Background technique [0002] "Li Mingyang. Detailed Explanation of HFSS Electromagnetic Simulation Design and Application. Beijing: People's Posts and Telecommunications Press. 2010" introduces the design method of microstrip antenna, and gives the calculation formula of the actual length of the rectangular radiating element: [0003] L = λ 0 2 ξ e - 0.824 h ( ξ e + 0.3 ) ( W / ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q13/08H01Q1/38H01Q1/48
Inventor 赵红梅崔光照谢泽会杜保强任景英杜海明王延峰郭淑婷田向
Owner ZHENGZHOU UNIVERSITY OF LIGHT INDUSTRY