Tunable SIW bandpass filter-combined microstrip antenna based on liquid crystals

被引:3
|
作者
Missaoui, Sihem [1 ]
Missaoui, Sayed [1 ]
Kaddour, Mohsen [1 ,2 ]
机构
[1] Univ Tunis El Manar, Fac Sci Tunisia, Phys Lab Soft Matter & Electromagnet Modeling LR9, Tunis 2092, Tunisia
[2] Univ Sfax, Fac Sci Sfax, Sfax 3029, Tunisia
关键词
Liquid crystals; Tunable devices; Substrate integrated waveguide (SIW); Filters; Microstrip antenna; Multilayer; GUIDE; RESONATOR;
D O I
10.1016/j.ijhydene.2016.06.181
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
In this paper, the design and experimental characterization of a novel tunable Substrate Integrated Waveguide (SIW) filter and tunable microstrip patch antenna in multilayer technology based on liquid crystals (LCs) are presented. To realize the concept, the SIW filter and patch antenna are combined directly coupled by T-slot at the middle of the common ground plane. Due to their flexibility as a liquid dielectric and because of their anisotropic characteristics, they have been used widely in telecommunication devises, display technologies, and RP and microwave devices. The dielectric proprieties of LCs are controlled through the strength of the bias voltage of 15 V, a return loss (SW better than -35 dB with a global bandwidth of around 425 MHz (18%) and a frequency agility of 13.75%, are demonstrated. A good agreement is noticed between the simulated and the measured data. (C) 2016 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码:8804 / 8812
页数:9
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