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Applied Sciences
Volume 15
Issue 17
10.3390/app15179515
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This is an early access version, the complete PDF, HTML, and XML versions will be available soon.
Article

Calculation and Simulation of a Radar Antenna with Reflector and a cosec2 · cos Pattern Beam

by
Petru Mazăre
1,
Anton Muraru
1,
Camelia Mazăre
2,
Sorin Lazăr
2,
Simona Halunga
3,4,*,
Octavian Fratu
3,4,* and
Maria Sîrbu-Drăgan
4,*
1
National Association of the Reserve and Retired Military Personnel “Alexandru Ioan Cuza”, 010141 Bucharest, Romania
2
Test, Evaluation and Scientific Research Weapons Systems Centre, Military Equipment and Technologies Research Agency (METRA), 077025 Bragadiru, Ilfov, Romania
3
Faculty of Electronics, Telecommunications and Information Technology, The National University of Science and Technology POLITEHNICA Bucharest, 060042 Bucharest, Romania
4
Academy of Romanian Scientists, 050044 Bucharest, Romania
*
Authors to whom correspondence should be addressed.
Appl. Sci. 2025, 15(17), 9515; https://doi.org/10.3390/app15179515 (registering DOI)
Submission received: 4 July 2025 / Revised: 18 August 2025 / Accepted: 25 August 2025 / Published: 29 August 2025
(This article belongs to the Special Issue RF/Millimeter-Wave/Sub-THz Antennas, Integrated Circuits and Systems for 5G and Beyond)
Versions Notes

Abstract

This study presents a new approach for generating the symmetrical plan curve of a double-curved antenna reflector’s radiation pattern as an alternative to optimizing it when the primary radiation source has a given pattern. The results obtained are compared with those achieved using a source with a different characteristic, clearly indicating the potential to minimize the reflector surface area through illumination with a specific characteristic. Moreover, diffraction calculations for an antenna including a reflector that employs the calculated vertical profile derived from a primary radiation source characterized by a given beam pattern are presented. This analysis considers two cases: one with horizontal polarization and the other with vertical polarization. Simulation results are provided for the diffraction calculation of a reflector with radiation characteristics that employs a sectorial horn antenna with directivity characteristics. In this setup, the angular limits of the reflected beam are sequentially adjusted, allowing the changes in the directivity characteristic to be observed and discussed to determine the optimal configuration for the intended application.
Keywords: cosec 2; double curved reflector; radar antenna; cosec2 · cos; cos 4 cosec 2; double curved reflector; radar antenna; cosec2 · cos; cos 4

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MDPI and ACS Style

Mazăre, P.; Muraru, A.; Mazăre, C.; Lazăr, S.; Halunga, S.; Fratu, O.; Sîrbu-Drăgan, M. Calculation and Simulation of a Radar Antenna with Reflector and a cosec2 · cos Pattern Beam. Appl. Sci. 2025, 15, 9515. https://doi.org/10.3390/app15179515

AMA Style

Mazăre P, Muraru A, Mazăre C, Lazăr S, Halunga S, Fratu O, Sîrbu-Drăgan M. Calculation and Simulation of a Radar Antenna with Reflector and a cosec2 · cos Pattern Beam. Applied Sciences. 2025; 15(17):9515. https://doi.org/10.3390/app15179515

Chicago/Turabian Style

Mazăre, Petru, Anton Muraru, Camelia Mazăre, Sorin Lazăr, Simona Halunga, Octavian Fratu, and Maria Sîrbu-Drăgan. 2025. "Calculation and Simulation of a Radar Antenna with Reflector and a cosec2 · cos Pattern Beam" Applied Sciences 15, no. 17: 9515. https://doi.org/10.3390/app15179515

APA Style

Mazăre, P., Muraru, A., Mazăre, C., Lazăr, S., Halunga, S., Fratu, O., & Sîrbu-Drăgan, M. (2025). Calculation and Simulation of a Radar Antenna with Reflector and a cosec2 · cos Pattern Beam. Applied Sciences, 15(17), 9515. https://doi.org/10.3390/app15179515

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