It is observed that a good agreement between the measured and simulated results is achieved. The
measured antenna gain ranges from 2.2 to 4.4 dBi. The average gain is around 3 dBi in the band of
2.95–18 GHz. The measured radiation efficiency of the fabricated antenna is also shown in Figure 7.
The radiation efficiency value includes the mismatch loss and dielectric loss. According to the measured
result, the measured radiation efficiency of the proposed printed dipole antenna is around 80% within
the effective operating bandwidth.