Abstract
This paper proposes a novel metasurface-based monopulse antenna. A multimode pyramidal horn with four ports is selected as the feed of the proposed monopulse antenna. The 3-dB couplers and the optimized waveguide phase shifters are employed to design the monopulse comparator. In order to obtain good sum and difference beams performance, metasurfaces are mounted on a bowl structure to radiate the electromagnetic wave from the sub-reflector. An experimental prototype of the proposed design has been fabricated and measured at Ku-band. The measured results show that the gain ratio between the sum and difference beams is 2.8 dB and 3.7 dB, respectively. More importantly, the peak gain of the sum beam at 16 GHz is 27.1 dB, without considering the loss of the comparator, with a corresponding aperture efficiency of about 41.4%. This indicates that the proposed structure is beneficial for improving the sum and difference beams performance of the monopulse antenna, which is suitable for tracking platforms.
Funder
National Natural Science Foundation of China
Guangxi Science and Technology Base Foundation
Subject
Electrical and Electronic Engineering,Mechanical Engineering,Control and Systems Engineering
Reference29 articles.
1. Skolnik, M. (1970). Radar Handbook, McGraw-Hill Education.
2. Qian, S.S., Li, X.G., and Wang, B.Q. (2008, January 2–5). Ka band Cassegrain monopulse antenna fed by tapered rod antennas. Proceedings of the 2008 8th International Symposium on Antennas, Propagation and EM Theory, Kunming, China.
3. Design of a W-band full-polarization monopulse Cassegrain antenna;IEEE Antennas Wirel. Propag. Lett.,2016
4. A dual circular-polarized extremely thin monopulse feeder at W-Band for prime focus reflector antenna;IEEE Antennas Wirel. Propag. Lett.,2019
5. A compact single-layer substrate-integrated waveguide (SIW) monopulse slot antenna array;IEEE Antennas Wirel. Propag. Lett.,2017
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