In this paper, a multi-stopband frequency selective surface (FSS), covering the WLAN band (2.19–2.72 GHz), 5.89–7.05 GHz, and X-band (7.56–15.38 GHz) has been proposed. A square ring integrated with two T-shaped patches is considered as the unit cell. First square ring patch type FSS are explored, finally the design is come up with a compact square ring patch with two T-shaped single-layer FSS. It is also verified that by varying the width of the T-shaped patch resonance frequencies and bandwidth can be changed. This FSS also exhibits good angular stability performance over all the operating bands. © 2020, Springer Nature Singapore Pte Ltd.