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Sinuous Antenna for UWB Radar Applications.

Luciano Mescia1, Gianvito Mevoli1, Claudio Maria Lamacchia2

  • 1Department of Electrical and Information Engineering, Politecnico di Bari, Via E. Orabona 4, 70125 Bari, Italy.

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|January 11, 2022
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Summary
This summary is machine-generated.

This paper reviews advancements in sinuous antennas, covering geometry, dielectric loading, and miniaturization. New supershaped designs enhance directivity, gain, and efficiency for improved antenna performance.

Keywords:
UWB antennafrequency-independent antennasminiaturizationpassive radarsupershaped

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Area of Science:

  • Electromagnetics and Wave Propagation
  • Antenna Theory and Design

Background:

  • Sinuous antennas are frequency-independent, utilizing self-complementary and log-periodic geometries.
  • Conventional sinuous antennas present challenges in size and radiation behavior trade-offs.

Purpose of the Study:

  • To detail recent progress in sinuous antenna technology.
  • To explore geometry, dielectric structures, and miniaturization techniques.
  • To introduce novel supershaped sinuous antennas.

Main Methods:

  • Analysis of frequency-independent antenna principles (self-complementary, log-periodic).
  • Investigation of geometric modifications (meandering, dielectric loading, cavity backing).
  • Development and evaluation of supershaped sinuous antennas merging superformula and sinuous curves.

Main Results:

  • Optimized trade-offs between antenna size and radiation achieved through geometric and dielectric modifications.
  • Cavity backing enables unidirectional radiation.
  • Supershaped designs demonstrate improved directivity, beam stability, gain, and radiating efficiency.

Conclusions:

  • Sinuous antenna design has advanced significantly through geometric optimization and novel shaping.
  • Supershaping offers a promising avenue for enhanced antenna performance.
  • Further research can leverage these techniques for next-generation antennas.