Tunability of metamaterial compact band-stop filters using YIG substrate

ABSTRACT

In this paper, the design of a tunable and compact metamaterial microstrip band-stop filter is proposed. The device is designed to operate in the X band, it is based on a metamaterial pattern (single-turn square planar resonator) implemented on a ferrite substrate. The study focuses on the metamaterial band-stop filter and on the way to tune its frequency properties. For this reason, the magnetic material is a perfect solution, using YIG (Yttrium Iron Garnet) substrates. As a result, the central frequency of the filter can be tuned by varying the magnetic bias applied to the YIG substrate. A tunability up to 10.81% is obtained. The size of the proposed filter is electrically reduced to 3.7 mm².

KEYWORDS:

• Bands-top filter
• YIG
• metamaterial
• magnetic materials
• frequency tunability
• X band

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Notes on contributors

Aziza Zermane

Aziza Zermane was born in 1978 in Constantine, Algeria. She is lecturer at university of Mustapha Ben Boulaid Batna 2, Algeria. She received PhD degree at University of Constantine (Laboratory of high frequencies and semiconductors) in collaboration with university of Jean Monnet Saint-Etienne (DIOM laboratory) in 2011. Her current research interest focuses on microwaves devices, metamaterials and antennas.

Bruno Sauviac

Bruno Sauviac received his PhD in 1993 from the Institut National Polytechnique of Toulouse, France. After this he took up a postdoctoral position in the French Alternative Energies and Atomic Energy (CEA) followed by period at the Bordeaux University. He then moved to the University of Saint-Etienne, France. His research interests include electromagnetics, composite magnetic materials, chiral materials and metamaterials and microwave measurements.

Linda Djouablia

Linda Djouablia was born in 1975 in Constantine, Algeria. She is lecturer at University 20 Aout 1955 Skikda, Algeria. She received engineering and Magister degrees at University of Constantine in 1998 and 2005. She received PhD degree at University of Constantine (Laboratory of high frequencies and semi-conductors) in 2012. Her current research focuses interest on Microwaves and antennas.

Abdelmadjid Benghalia

Abdelmadjid Benghalia was born in Sigus, Algeria. He received his PhD degree in 1989 from the National Polytechnic Institute of Toulouse (ENSEEIHT), France. He was a professor at the University of Constantine 1, in Algeria. He set up the initial nucleus of the Hyperfrequency and Semiconductor Laboratory (LHS) at the University of Constantine 1, in 2001. He then moved to the University of Oum El Bouaghi and he is attached at LHS laboratory. His research interests include microstrip antennas, dielectric resonator antennas, microstrip transmission lines, UWB antennas, numerical methods analysis, photonic crystals, slow wave, and other related structures.