A broadband polarization insensitive graphene absorber with wide incident angle

The development of radar technology is a serious threat to the stealth of aircraft. To decrease the radar cross section (RCS) and enhance the stealth ability of targets, the absorber can be used. Based on graphene in this paper, a broadband absorber is proposed. The absorption rate of the proposed absorber is more than 90% in the 2.1–9.0GHz range with the relative bandwidth of 123%. Moreover, it has the microwave absorbing properties of polarization insensitive and wide incident angle range.