Author(s)

Miao Liu, Zhongliang Lu, Changgao, Qiangpeng, Xiangjun Tan and Chao Liao

Corresponding Author

Miao Liu

ABSTRACT

A broadband low-profile meta-surface antenna based on characteristic mode analysis（CMA）is proposed in this paper. The antenna consists of three layers of metal and two layers of dielectric. The three metal layers are meta-surface, GND with cross slot and microstrip feeder from top to bottom. This paper first analyzes the meta-surface antenna by using CMA and then designs the proposed antenna. Simulation verification shows that the frequency range of includes 4.48GHz-6.52GHz, and the relative bandwidth is 37%. The radiation direction is +z in all working frequency bands with the gain above 7.1dB. The results show low-profile broadband antenna is realized.

KEYWORDS

CMA; low-profile; broadband; meta-surface antenna