Engineering antenna radiation patterns via quasi-conformal mappings.

Area of Science:

• Electromagnetics and Optics
• Metamaterials Engineering

Background:

• Designing electromagnetic devices to control radiation patterns is crucial for applications.
• Existing methods like conformal mappings offer limited flexibility in pattern engineering.

Purpose of the Study:

• To develop a novel method for engineering isotropic electromagnetic devices with complex radiation patterns.
• To achieve enhanced control over directivity and radiated power in specific directions.

Main Methods:

• Utilizing a combination of conformal and quasi-conformal mappings.
• Designing non-magnetic devices for transverse electric (TE) waves.
• Analyzing the frequency dependence and proposing practical implementations.

Main Results:

• Successfully engineered devices that modify omnidirectional radiation patterns.
• Demonstrated the ability to achieve complex patterns with high directivity and isotropic radiation simultaneously.
• Showcased control over radiated power distribution in different directions.

Conclusions:

• The proposed mapping technique offers superior flexibility compared to traditional methods.
• The engineered devices are applicable across the electromagnetic spectrum.
• A practical dielectric implementation of the designed devices is feasible.