Akademik Veri Yönetim Sistemi
19th European Conference on Antennas and Propagation, EuCAP 2025, Stockholm, İsveç, 30 Mart - 04 Nisan 2025, (Tam Metin Bildiri)
This article presents a multi-beam planar leakywave antenna designed for W-band radar systems. T-shaped and thin angled-ended slots are introduced into the circular seriesfed patch array structure to enhance impedance matching and enable multi-beam functionality. The antenna operates in the 78.5 GHz to 88 GHz range, achieving a bandwidth of 11.4 %, an average gain of 12 dBi, and a total efficiency of 80 % or higher. It provides total beam scanning of 63° across the ranges of -78° to -44°,-15° to -1°, and 27° to 42°, utilizing triple main beams. To the best of the authors' knowledge, this is the first study of a planar multi-beam leaky-wave antenna with a simple feeding for W-band applications. The antenna's planar design, simplicity, high efficiency, and multi-beam capability make it an excellent candidate for SAR imaging in airborne applications and automotive radar systems operating in the W-band.