Int J Performability Eng ›› 2019, Vol. 15 ›› Issue (8): 2116-2122.doi: 10.23940/ijpe.19.08.p11.21162122

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Engineering Realization of a Dual-Band Monopulse Antenna

Fengwei Yaoa,*, Wei Liub, and Mei Jiangc   

  1. a School of Electronic and Information, Shanghai Dianji University, Shanghai, 201306, China
    b Department of Electrical and Computer Engineering, National University of Singapore, 117583, Singapore
    c Shanghai Key Laboratory of Electromagnetic Environment Effects for Aerospace Vehicles, Shanghai, 200438, China
  • Submitted on ;
  • Contact: * E-mail address: yaofw@sdju.edu.cn
  • About author:Fengwei Yao is an associate professor at Shanghai Dianji University. Her research interests include microwave antennas and microwave circuits. Wei Liu is a research fellow in the Department of Electrical and Computer Engineering at the National University of Singapore. His current research interests include the theory, modelling, and design of metamaterial/metasurface-based antennas. Mei Jiang is a research associate in the Shanghai Key Laboratory of Electromagnetic Environment Effects for Aerospace Vehicles. Her research interests include microwave antennas and microwave circuits.
  • Supported by:
    This work is sponsored by the Nature Science Foundation of Shanghai (No. 17ZR1411100) and NSFC (No. 61701308).

Abstract: The dual-frequency monopulse antenna is on the front end of the dual-mode seeker, and its geometrical and radiation characteristics both decide the performance of a system. In this paper, a new dual-frequency monopulse antenna is introduced; it adopts a compact slot radiator, a novel side-feed array, a waveguide feeding network in one dimension to reduce microstrip loss and other novel designs. After second optimization to overcome the engineering problem, an improved antenna is created, and it is divided into two parts to improve weldability and yield. The tested results show that the antenna has good monopulse characteristics in two bands at the same time, with an efficiency of 38% and 45%, respectively. The experimental results demonstrate that this design is effective.

Key words: dual-band, monopulse, efficiency, side-lobe