Lots of info about probes, technique, design, and frequency are explained inside this paper. The paper contains information related to measurement, wave measurements, measurement technique, and impedance.
Inside the paper we can learn description related to measurements, bandwidth, electromagnetic band, and configuration. Below are selected from the paper:
3: (a) Return Loss (b) Transmission Coefficient (i) Configuration 1: d = 46 mm , p = 108 mm (ii) Configuration 2: d = 10 mm, p = 180 mm (iii) Configuration 3: d = 25 mm, p = 150 mm 3 Results To verify the surface wave properties of the proposed Polar-EBG, three Polar-EBG surfaces together with the conventional mushroom structure having the same periodic spacing were fabricated on a Taconic TLE-95 substrate of height 3.18 mm and dielectric constant εr = 2.95.
Also, the paper presents more regarding measurement methods, resonant frequency, and measurement setup.