Design of a Ku-Band Monopulse Antenna with a Truncated Reflector and an Open-Ended Waveguide Feed

This paper presents a design for a monopulse reflector antenna with asymmetric beamwidths for radar applications at the Ku band. The proposed design features a rectangular waveguide monopulse feed and a truncated parabolic reflector. An array of four open-ended rectangular waveguides were employed t...

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Bibliographic Details
Published in:Sensors (Basel, Switzerland) Switzerland), 2022-12, Vol.23 (1), p.118
Main Authors: Monebi, Ayodeji Matthew, Lee, Chan-Soo, Ahn, Bierng-Chearl, Choi, Seong-Gon
Format: Article
Language:English
Subjects:
Analysis
Antennas
Antennas (Electronics)
Azimuth
Costs (Law)
Design
Design parameters
Directivity
Investigations
monopulse antenna
Monopulse antennas
Parabolic reflectors
Projectiles
Radiation
Rectangular waveguides
Reflector antennas
Satellite communications
sum and difference channels
Superhigh frequencies
truncated parabolic reflector
Waveguides
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Summary:This paper presents a design for a monopulse reflector antenna with asymmetric beamwidths for radar applications at the Ku band. The proposed design features a rectangular waveguide monopulse feed and a truncated parabolic reflector. An array of four open-ended rectangular waveguides were employed to realize a compact monopulse feed. The reflector is cut in the plane of the feed producing a wider beam in the azimuth plane. This type of pattern is useful in applications such as projectile tracking and airport surveillance. The design parameters for optimum performances are chosen at all stages of the design. The design and analysis have been carried out using the commercial simulation tool CST Studio Suite 2022. The directivity of the sum, elevation difference and azimuth difference channels of the reflector antenna are 32.1, 28.1, and 26.4 dB at 14 GHz; 30.9, 29, and 27.3 dB at 15 GHz; 31.7, 29.6, and 27.6 dB at 16 GHz; 31.6, 29.9, and 27.8 dB at 17 GHz.
ISSN:1424-8220
1424-8220
DOI:10.3390/s23010118