Table 3 Properties of materials used.

From: Design of rectangular patch antennas through machine learning

Material

\(\varepsilon _r\)

\(\tan \delta\)

h (mm)

Shengyi Technology S1150G FR-426

4.6

0.011

0.05–3.2

Rogers RT/Duroid 600627

6.45

0.0027

0.635; 1.27; 1.9

Rogers RO320628

6.6

0.0027

0.64; 1.28

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