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Ku‐band low side‐lobe level fixed‐frequency electrically scanning leaky‐wave antenna
Author(s) -
Zhao Junfei,
Zhang Yewen,
Yu Xiaomin,
Li Yunhui,
Fang Kai,
He Li,
Chen Hong
Publication year - 2016
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.30086
Subject(s) - varicap , side lobe , optics , leaky wave antenna , antenna (radio) , materials science , microwave , main lobe , optoelectronics , pin diode , radiation pattern , diode , dipole antenna , capacitance , electrical engineering , physics , microstrip antenna , telecommunications , engineering , electrode , quantum mechanics
A one‐dimensional (1D) Ku‐band electrically scanning leaky‐wave antenna (LWA) is presented. The antenna is based on Fabry‐Perot (FP) cavity leaky‐waveguide, which is composed of a partially reflective surface (PRS) and a tunable high impedance surface (HIS). The PRS consists of a tapered dipole array and the configuration is modulated to reduce the side‐lobe level (SLL). The varactor diodes are loaded on the HIS to achieve the steerable radiation angle. Both simulated and experimental results confirm well that the scanning scope as wide as 30 degree can be obtained and the low SLL can be observed. © 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 58:2512–2516, 2016