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Related Experiment Video

Updated: Apr 21, 2026

Clinical Imaging of Microwave Mammography
05:28

Clinical Imaging of Microwave Mammography

Published on: November 14, 2025

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Multi-Band Miniaturized Patch Antennas for a Compact, Shielded Microwave Breast Imaging Array.

Suzette M Aguilar1, Mudar A Al-Joumayly2, Matthew J Burfeindt3

  • 1University of Wisconsin-Madison and is now with Motorola Mobility, Inc, Libertyville, IL 60048 USA.

IEEE Transactions on Antennas and Propagation
|November 14, 2014
PubMed
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Miniaturized multi-band patch antennas with non-radiating slots show promise for 3D microwave breast imaging. These compact antennas offer consistent performance, enabling effective imaging with minimal impact on image quality.

Area of Science:

  • Electromagnetics and Applied Physics
  • Biomedical Engineering
  • Antenna Theory and Design

Background:

  • Microwave breast imaging offers a radiation-free alternative for early cancer detection.
  • Developing compact, multi-band antennas is crucial for creating effective 3D sensor arrays for this application.
  • Existing antenna designs often face challenges with miniaturization and achieving consistent performance across multiple frequencies.

Purpose of the Study:

  • To investigate a class of multi-band miniaturized patch antennas for 3D enclosed sensor arrays in microwave breast imaging.
  • To analyze the design trade-offs between antenna miniaturization and radiation efficiency.
  • To evaluate the performance of these antennas in a 3D quantitative microwave breast imaging system.

Main Methods:

Keywords:
microstrip antennasmicrowave breast imagingminiaturized antennasmulti-band antennasslot-loading

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  • Designing and fabricating miniaturized patch antennas loaded with non-radiating slots for multi-band operation.
  • Conducting electromagnetic simulations and experimental measurements in a biocompatible immersion medium.
  • Performing numerical analysis to study the impact of design parameters (slots, substrate) on antenna characteristics.
  • Comparing 3D imaging performance using different antenna array configurations with a realistic breast phantom.

Main Results:

  • Prototypes demonstrated excellent agreement between simulated and measured results.
  • The slot-loading technique effectively achieved miniaturization and multi-band operation with symmetric radiation patterns.
  • Numerical analysis revealed trade-offs between miniaturization and efficiency, influenced by slot configuration and substrate properties.
  • Simulated imaging results indicated that antenna gain variations did not significantly degrade image quality under realistic noise conditions.

Conclusions:

  • The studied miniaturized, slot-loaded patch antennas are suitable for 3D microwave breast imaging.
  • These antennas offer a promising solution for developing compact, multi-frequency, shielded microwave imaging systems.
  • The design approach allows for optimization of antenna performance for specific imaging requirements.