Wide axial ratio beamwidth microstrip antenna based on bilayer substrates

Xie Miaozhen; Chen Ming

doi:10.11884/HPLPB201729.170097

Volume 29 Issue 11

Nov. 2017

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Article Navigation > High Power Laser and Particle Beams > 2017 > 29(11): 113003

Xie Miaozhen, Chen Ming. Wide axial ratio beamwidth microstrip antenna based on bilayer substrates[J]. High Power Laser and Particle Beams, 2017, 29: 113003. doi: 10.11884/HPLPB201729.170097

Citation:

Xie Miaozhen, Chen Ming. Wide axial ratio beamwidth microstrip antenna based on bilayer substrates[J]. High Power Laser and Particle Beams, 2017, 29: 113003. doi: 10.11884/HPLPB201729.170097

Xie Miaozhen, Chen Ming. Wide axial ratio beamwidth microstrip antenna based on bilayer substrates[J]. High Power Laser and Particle Beams, 2017, 29: 113003. doi: 10.11884/HPLPB201729.170097

Citation:

Xie Miaozhen, Chen Ming. Wide axial ratio beamwidth microstrip antenna based on bilayer substrates[J]. High Power Laser and Particle Beams, 2017, 29: 113003. doi: 10.11884/HPLPB201729.170097

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Wide axial ratio beamwidth microstrip antenna based on bilayer substrates

doi: 10.11884/HPLPB201729.170097

1.
School of Communication and Information Engineering,Xi’an University of Posts and Telecommunications,Xi’an 710121,China

Received Date: 2017-03-28
Rev Recd Date: 2017-07-07
Publish Date: 2017-11-15

Abstract

Abstract

In order to improve 3 dB axial ratio beamwidth (ARBW) of the microstrip antenna, a miniaturized wide 3 dB ARBW circularly polarized microstrip antenna is proposed, and it is designed by using the structure of bilayer dielectric substrates and the methods of grooving on radiation patches, feeding by single point coaxial probe and perturbing by truncated corners. The size of the antenna is 0.40800.40800.0360 at central wavelength (0), and the operating frequency covers IEEE 802.16e (3.5 GHz) frequency band. Using the simulation software (Ansoft HFSS15.0) based on finite element method to optimize and simulate the antenna, the design results show that 3 dB ARBW is 230~255, the band of voltage standing-wave ratio (VSWR) less than 2 is 290 MHz, the peak gain is 4.11 dB at 3.5 GHz. Also, the test results are in good agreement with the simulation results. So ARBW of antenna can be broadened by the proposed structure and method effectively.
- bilayer dielectric substrates,
- axial ratio beamwidth,
- circular polarization,
- microstrip antenna

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