Affiliation of Author(s):[1]Univ Elect Sci & Technol China, State Key Lab Elect Thin Films & Integrated Device, Chengdu 610054, Peoples R China;[2]Chengdu Univ Informat Technol, Informat Mat & Device Applicat Key Lab Sichuan Pro, Chengdu 610225, Peoples R China;[3]Univ Elect Sci & Technol China, Yangtze Delta Reg Inst Huzhou, Huzhou, Peoples R China
Journal:CERAMICS INTERNATIONAL
Key Words:Nickel -modified; Two-dimensional beam splitting; Microwave dielectric ceramics; LTCC; Array antenna
Abstract:In this work, a new Zn1-xNixMoO4 (ZNMO) (x = 0.03) ceramic with low-dielectric constant, low-loss, and low -sintering temperature for X-band two-dimensional (2D) beam splitting is developed by solid-state reaction method. This ceramic has excellent microwave dielectric properties of er = 8.5, Q x f = 28192 GHz, of =-60.2 ppm/degrees C. The effects of Ni2+ substitution on the microwave dielectric properties of the ZnMoO4 ceramic are studied in detail through crystal structure analysis, Raman spectroscopy, and first-principles calculations. For the first time, an array antenna for X-band 2D electromagnetic beam splitting is designed by using this ceramic as a substrate. The effects of the dielectric constant and dielectric loss on the radiation efficiency of the array antenna are revealed. The normalized reflection amplitude and reflection phase of the unit cell exceed 0.97 and cover 360 degrees, respectively. The function of 2D electromagnetic beam splitting is verified by the overall far-field pattern of the array antenna. This work has the opportunity to promote the development of LTCC and microwave dielectric ceramics.
Document Type:Article
Volume:48
Issue:21
Page Number:31528-31536
ISSN No.:0272-8842
Translation or Not:no