Experimental study demonstrates a dual-band slotted microstrip patch antenna resonating at 2.7 GHz and 5.3 GHz, suggesting suitability for compact WLAN and LTE systems.
Key Points
To design, simulate, and fabricate a compact dual-band microstrip patch antenna operating at 2.7 GHz and 5.3 GHz for wireless communications.
Designed a radiating patch incorporating two parallel I-shaped slots on a 1.2 mm thick Arlon substrate (εᵣ = 2.2) to achieve dual-band operation.
Optimized geometric dimensions through parametric sweeps using electromagnetic simulation tools (HFSS/CST).
Fabricated a physical prototype using standard PCB etching, fitted it with an SMA connector, and measured its performance against simulation data.
Achieved return losses of –21.38 dB at 2.7 GHz and –23.04 dB at 5.3 GHz.
Produced broadside gains of approximately 7.33 dB at 2.7 GHz and 7.38 dB at 5.3 GHz.
Demonstrated broadside radiation patterns at 2.7 GHz and additional higher-order mode lobes at 5.3 GHz, with prototype measurements confirming simulation results.