Design, Simulation, and Fabrication of High Power Radial Line Slot Array Antennas

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Mohammadzadeh Fallah; Hasani Ali; Amirhossini Mohammad Khalaj

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Journal Paper

Paper Information

Journal: JOURNAL OF APPLIED ELECTROMAGNETIC Year:2023 | Volume:11 | Issue:1 Page(s): 75-85

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Information Journal Paper

Title

Design, Simulation, and Fabrication of High Power Radial Line Slot Array Antennas

Author(s)

Mohammadzadeh Fallah | Hasani Ali | Amirhossini Mohammad Khalaj | Issue Writer Certificate

Keywords

Radial Linear Slot Array Antenna (RLSA)

High Power Microwave (HPM)

Radial Waveguides

Slow-Wave Structures (SWS)

Abstract

Radial linear slotted array antennas are slotted wave-guide antennas. These antennas are highly efficient and are used to produce circular polarization. In this paper, a slow wave structure is used to increase the tolerable power of the antenna. The use of this structure creates a two-level radial linear slot array antenna. On the slow wave structure, there is a slot plate that is fed by this structure. Both slots perpendicular to each other (to create circular polarization) form a unit of radiation. Radiation units are distributed on a spiral path at regular intervals. This antenna is designed, simulated, and built to operate at a frequency of 9. 45 GHz and a radius of 270 mm. According to the simulation results, the reflection coefficient is-18. 93 dB, the radiation efficiency is more than 93% and the aperture efficiency is 28. 5%. The evaluation of the value of the reflection coefficient for a sample made in the range of 9. 385 GHz to 9. 417 GHz is less than-10 dB.

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