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Enhancement of Penetration of Millimeter Waves by Field Focusing Applied to Breast Cancer Detection
Objective:
The potentialities of improving the penetration of millimeter waves for breast cancer imaging are here explored.
Methods:
A field focusing technique based on a convex optimization method is proposed, capable of increasing the field level inside a breast-emulating stratification.
Results:
The theoretical results are numerically validated via the design and simulation of two circularly polarized antennas. The experimental validation of the designed antennas, using tissue-mimicking phantoms, is provided, being in good agreement with the theoretical predictions.
Conclusion:
The possibility of focusing, within a lossy medium, the electromagnetic power at millimeter-wave frequencies is demonstrated.
Significance:
Field focusing can be a key for using millimeter waves for breast cancer detection.
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