A SIW Fed Antipodal Linear Tapered Slot Planar Multi-Beam Antenna for Millimeter-Wave Application

Zhang, Yingsong; Hong, Wei; Kuai, Zhenqi

doi:2010.10.3.175

J. Electromagn. Eng. Sci > Volume 10(3); 2010 > Article

Journal of the Korean Institute of Electromagnetic and Science 2010;10(3):175-178.
DOI: https://doi.org/10.5515/JKIEES.2010.10.3.175

A SIW Fed Antipodal Linear Tapered Slot Planar Multi-Beam Antenna for Millimeter-Wave Application

Yingsong Zhang, Wei Hong, Zhenqi Kuai

State Key Laboratory of Millimeter Waves, Department of Radio Engineering, Southeast University

Abstract

In this paper, a millimeter-wave multi-beam antenna is studied by rotating the antipodal linear tapered slot antenna(ALTSA) with respect to a center is successfully designed. In order to lowering the SLL and enhancing the isolation between the ALTSA elements, a row of metallic via is inserted between the ALTSAs. A 9 beams antenna is designed and experimented at Ka band. The measured and simulated results agree well with each other. The antenna can provide horizontal wide angle coverage up to ${pm}62^{circ}$. The gain of each beam can achieve about 12.5 dB. The mutual coupling between ports is all below 20 dB.

Key words: Antipodal Linear Tapered Slot Antenna, Planar Multi-Beam Antenna, Gain, Mutual Coupling, Substrate Integrated Waveguide(SIW)