Table 10 Various pairs of waveguide model and range of frequencies.

From: Penta band single negative meta-atom absorber designed on square enclosed star-shaped modified split ring resonator for S-, C-, X- and Ku- bands microwave applications

Port model of waveguides

Measuring frequency range (GHz)

229WCA3.5

3.30–4.90

159WCAN

4.90–7.05

112WCAS

7.05–10.0

75WCAS

10.0–15.0

51WCAS

15.0–22.0