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International Journal of Antennas and Propagation
Volume 2018, Article ID 5793535, 7 pages
https://doi.org/10.1155/2018/5793535
Research Article

Design of the Variable Inclination Continuous Transverse Stub Antenna Based on Rectangular Grating Slow-Wave Structure

National Digital Switching System Engineering and Technological R&D Center, Zhengzhou 450002, China

Correspondence should be addressed to Jun Gao; moc.361@121nuoajg

Received 25 October 2017; Revised 25 January 2018; Accepted 5 February 2018; Published 2 April 2018

Academic Editor: Paolo Burghignoli

Copyright © 2018 Jun Gao et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

In order to solve difficulty in designing nonlinear slow-wave structure (SWS) of the variable inclination continuous transverse stub (VICTS) antenna, we combine the study of the semiopen rectangular grating SWS in the PPW with equivalent circuit theory of leaky-wave antenna to propose a theoretical model for SWS of VICTS element. The computations that the propagation characteristics of VICTS element are calculated by the theoretical model. The results are consistent with the full-wave simulation, which prove the validity and accuracy of the theoretical model. Lastly, by using the theoretical model, an approach for nonlinearly designing SWS is introduced and carried out. The approach improves the gain of the VICTS antenna 0.4 dB.