An Improved Design of L-probe Feeding Microstrip Antenna Array for 4G Applications

DOI

10.2991/jimet-15.2015.192How to use a DOI?

Keywords

microstrip antenna, broadband, wide beamwidth, high gain, 4G mobile communication systems.

Abstract

To meet the high requirements of 4G mobile communication systems, such as broadband, wide beamwidth and high gain, an improved microstrip antenna array fed by L-probe is proposed. Generally, most of the 4G antenna array elements have wide band and a gain of 3-5dBi. But the beamwidth in the horizontal plane is narrow, which is less than 70°usually. To solve this problem, an improved design of the patch ground is introduced. Then an improved patch antenna and its array are designed. The simulated results show that the return loss of the improved patch is less than -10dB from 1.88GHz to 2.65GHz, which has a complete coverage of TD-LTE 4G band. And the beamwidth expands to almost 120°at the same time. Though the gain of the patch is only above 5dBi, a 1×4 antenna array can get a gain of 11.85 dBi at the center frequency. Therefore, the proposed array is more profitable for the mobile communication systems.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Download article (PDF)

TY  - CONF
AU  - He Wang
AU  - Hu Yang
AU  - Lei Gu
AU  - Fei Zhao
AU  - Wenlu Yi
PY  - 2015/12
DA  - 2015/12
TI  - An Improved Design of L-probe Feeding Microstrip Antenna Array for 4G Applications
BT  - Proceedings of the 2015 Joint International Mechanical, Electronic and Information Technology Conference
PB  - Atlantis Press
SP  - 1021
EP  - 1025
SN  - 2352-538X
UR  - https://doi.org/10.2991/jimet-15.2015.192
DO  - 10.2991/jimet-15.2015.192
ID  - Wang2015/12
ER  -