Model analysis of coupled-mode leaky-wave antenna for forward and backward frequency scanning

Abhishek Kandwal, Qingfeng Zhang*, R. Das, Xiaolan Tang, L. W. Louis

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

This article proposes model analysis of a microstrip leaky-wave antenna for forward and backward scanning. Mode coupling and dual scan concept is introduced in this article with an inverted V-section leaky-wave antenna. The proposed design concept has been implemented on microstrip planar structure. An inverted V-section has been therefore implemented which resulted in frequency scanning in forward and backward directions in the right-hand (RH) region. The phenomenon has been observed within same frequency bandwidth of leaky-wave region which is normally difficult to see in conventional leaky-wave antennas. The article has also provided a circuit model analysis and design implementation explained by mode coupling theory. The proposed dual scanning leaky-wave antenna (DSLWA) design is providing a wide impedance bandwidth in the Ku-band and K-band with high gain, reduced side lobe levels and high radiation efficiency.

Original languageEnglish
Pages (from-to)1360-1368
Number of pages9
JournalMicrowave and Optical Technology Letters
Volume60
Issue number6
DOIs
Publication statusPublished - Jun 2018
Externally publishedYes

Keywords

  • dispersion
  • leaky wave
  • mode coupling
  • propagation
  • scanning

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