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Ultra-wideband Microstrip Patch Antenna with Artificial Magnetic Conductor and Nearly Constant Radiation Pattern for Breast Tumor Detection
  • +1
  • Ali Raza,
  • Maryam Liaqat,
  • Vinicius Marrara Pepino,
  • Ben-Hur Viana Borges
Ali Raza
Maryam Liaqat
Vinicius Marrara Pepino

Corresponding Author:[email protected]

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Ben-Hur Viana Borges


This letter presents the design, fabrication, and characterization of an ultra-wideband (UWB) microstrip patch antenna engineered for the early detection of breast tumors. The proposed design offers a nearly constant radiation pattern, high gain, and compact size through the utilization of an artificial magnetic conductor (AMC) structure comprising four different unit cells. This design feature ensures uniform coverage and reception across breast tissue, critical for early-stage tumor detection. Operating in the 2.9 GHz to 7.0 GHz frequency band, the antenna integrates a back-plane reflector that helps increasing the gain by 3 dB while enhancing bandwidth at low frequencies, thereby improving directivity and front-to-back ratio. The proposed antenna achieves a peak gain of ~8.1 dBi with the AMC. Furthermore, our antenna exhibits a nearly constant radiation pattern across 93% of its operating bandwidth. These characteristics highlight the antenna suitability for applications such as diagnosis of breast carcinoma and microwave imaging.
(This work has been submitted to the IEEE for possible publication. Copyright may be transferred without notice, after which this version may no longer be accessible.)
30 Apr 2024Submitted to TechRxiv
03 May 2024Published in TechRxiv