Array of Horns Fed by a Transverse Slotted Groove Gap Waveguide at 28 GHz

Area of Science:

• Electromagnetics and antenna engineering.
• Waveguide theory and applications.
• Microwave and millimeter-wave technologies.

Background:

• A novel antenna array featuring low profile horns fed by transverse slots on a groove gap waveguide (GGWG) is introduced.
• The GGWG incorporates glide symmetrical holes, with the design optimized for a 28 GHz operating frequency.
• The low profile horns are integrated directly into the waveguide wall, simplifying the overall structure.

Discussion:

• The presented design forms a linear array, with inherent scalability to planar configurations for broader coverage.
• Experimental validation confirms the performance characteristics of the designed antenna.
• The integration of horns within the waveguide wall minimizes profile and potentially reduces manufacturing complexity.

Key Insights:

• The GGWG-fed horn array achieves efficient power transfer at 28 GHz.
• The low profile nature of the antenna is suitable for space-constrained applications.
• The design demonstrates potential for cost-effective manufacturing.

Outlook:

• This antenna is a strong candidate for 5G communication systems requiring medium to high gain and efficiency.
• Further research could explore its application in other millimeter-wave frequency bands.
• Optimization for large-scale planar arrays could enhance its suitability for future wireless networks.