A Patch/Dipole Hybrid-Mode Antenna for Sub-6GHz Communication.

Area of Science:

• Electrical Engineering
• Electromagnetics
• Antenna Theory

Background:

• Sub-6GHz communication systems require antennas with high gain and broad bandwidth.
• Existing antenna designs often face trade-offs between profile, gain, and bandwidth.

Purpose of the Study:

• To propose and validate a novel low-profile antenna architecture for Sub-6GHz applications.
• To achieve simultaneous excitation of patch and dipole modes for bandwidth enhancement.

Main Methods:

• A single radiator design was employed, integrating narrow-band patch and dipole modes.
• Simultaneous excitation of both modes was utilized to broaden the operational bandwidth.
• A compact prototype was fabricated with dimensions of 0.90 λ₀ × 0.78 λ₀ and a profile of 0.13 λ₀.

Main Results:

• The fabricated antenna achieved an impressive impedance bandwidth of 67.50%.
• The operational frequency range spans from 2.75 GHz to 5.45 GHz.
• An average gain of 8.4 dBi was recorded within the 3.0–5.0 GHz band.

Conclusions:

• The proposed antenna design effectively addresses the need for high gain and broad bandwidth in a low-profile form factor.
• The simultaneous excitation of patch and dipole modes is a viable strategy for enhancing antenna performance.
• The demonstrated results show significant potential for this antenna in Sub-6GHz communication systems.