Such wide gaps, in the order of half-wavelength, are employed in the most cited designs for corrugated metallic antenna implementation due to the high attainable gain performance. The calculated patterns are compared to those obtained from a commercial simulation software (CST Microwave Studio), exhibiting a very good agreement.ĪB - A full-wave leaky-wave analysis of 1-D periodically corrugated metallic surfaces with wide gaps is presented. The calculated wavenumber of the leaky mode is then used for the analytical calculation of the radiation patterns of a finite-size antenna, based on a simple array factor approach and a near-field inspection of the electric fields of the simulated unit cell.

The complex dispersion characteristics verify that these structures operate as leaky-wave antennas. The results are compared with the known matrix pencil method. A full-wave periodic unit cell method is described and implemented on a corrugated metal surface design for the first time.

N2 - A full-wave leaky-wave analysis of 1-D periodically corrugated metallic surfaces with wide gaps is presented. Simulation setup for the extraction of the complex wavenumber ky−1 with periodicity d = 19.62 mm, h = 3.315 mm, and w = 13.32 mm. (Corresponding author: Despoina Kampouridou.) The authors are with the Department of Electronic, Electrical, and Systems Engineering, University of Birmingham, Birmingham B15 2TT, U.K. Engineering and Physical Sciences Research Council under Grant EP/P008380/1 and in part by the University of Birmingham under a School Postgraduate Scholarship. This work was supported in part by the U.K. Date of publication Madate of current version May 5, 2021.

Manuscript received Februaccepted March 10, 2021. T1 - Full-Wave Leaky-Wave Analysis of 1-D Periodic Corrugated Metal Surface Antennas

Cst antenna simulation