Figure 5 Comparison of S21/S12(dB) characteristics for variations in ground plane geometry
SIMULATED AND MEASURED RESULTS
To validate the antenna performance in a real practical scenario, the
proposed fractal array is fabricated using a photolithography process.
The fabricated prototype of the proposed fractal array is tested for
S-parameters (S11, S22,
S21, S12) values using VNA E 5063A (100
KHz-18GHz) under normal laboratory conditions. Figure 6 (a, b) shows the
snapshot of the front and back view of the fabricated fractal array
respectively. To energize the fractal patches, a 50 Ω female
subminiature version A (SMA) connector (frequency range up to 18 GHz) is
soldered at the termination of each feedline. Figure 6 (c) shows the
snapshot during the measuring of the reflection coefficient on VNA.