Metamaterial-inspired Antennas: A Review of the State of the Art and Future Design Challenges

Christos Milias, Rasmus B. Andersen, Pavlos I. Lazaridis, Zaharias D. Zaharis, Bilal Muhammad, Jes T.B. Kristensen, Albena Mihovska, Dan D.S. Hermansen

Research output: Contribution to journalReview articlepeer-review


Metamaterials are artificial structures with the ability of exhibiting unusual and exotic electromagnetic properties such as the realisation of negative permittivity and permeability. Due to their unique characteristics, metamaterials have drawn broad interest and are considered to be a promising solution for improving the performance and overcoming the limitations of microwave components and especially antennas. This paper presents a detailed review of the most recent advancements associated with the design of metamaterial-based antennas. A brief introduction to the theory of metamaterials is provided in order to gain an insight into their working principle. Furthermore, the current state-of-the-art regarding antenna miniaturisation, gain and isolation enhancement with metamaterials is investigated. Emphasis is primarily placed on practical metamaterial antenna applications that outperform conventional methods and are anticipated to play an active role in future wireless communications. The paper also presents and discusses various design challenges that demand further research and development efforts.

Original languageEnglish
Article number9462072
Pages (from-to)89846-89865
Number of pages20
JournalIEEE Access
Early online date22 Jun 2021
Publication statusPublished - 30 Jun 2021


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