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Leaky Wave Generation Through a Phased-Patch Array.

Alessandro Calcaterra1, Patrizio Simeoni2, Marco Donald Migliore3

  • 1Department of Information Engineering, Electronics and Telecommunications, La Sapienza University of Rome, 00184 Rome, Italy.

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View abstract on PubMed

Summary
This summary is machine-generated.

This study approximates leaky-wave antenna (LWA) fields using uniform linear arrays (ULAs), offering a flexible framework for inhomogeneous wave generation. Researchers verified the approximation accuracy and potential application issues at different distances.

Keywords:
inhomogeneous wavesleaky wavesleaky-wave antennas

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Area of Science:

  • Electromagnetics and Antennas
  • Wave Propagation

Background:

  • Leaky-wave antennas (LWAs) offer directional radiation but lack design flexibility.
  • Conventional LWA designs struggle to meet requirements for generating inhomogeneous waves with adaptability.

Purpose of the Study:

  • To develop an initial framework for approximating LWA fields using uniform linear arrays (ULAs).
  • To assess the feasibility of using ULAs for applications requiring inhomogeneous wave generation with enhanced flexibility.
  • To determine the effective approximation distance between ULA and LWA fields and identify potential application-specific issues.

Main Methods:

  • Approximation of leaky-wave antenna (LWA) fields using the field generated by a uniform linear array (ULA).
  • Consideration of two configurations: a Menzel antenna at 12 GHz and a practical antenna at 2.4 GHz.
  • Analysis of the distance at which ULA fields effectively approximate LWA fields.

    • Main Results:

    • The study provides a method to approximate LWA fields with ULA fields, offering greater design flexibility.
    • The research highlights the distances at which this approximation is effective for specific antenna configurations.
    • Potential issues arising from the ULA approximation for targeted applications were identified.

    Conclusions:

    • Uniform linear arrays (ULAs) can effectively approximate leaky-wave antenna (LWA) fields in certain scenarios.
    • This approximation offers a flexible alternative to conventional LWA designs for inhomogeneous wave generation.
    • Further verification is needed to ensure the approximation does not negatively impact specific applications.