Miniaturization of Monopole Antenna by Metamaterial Loading Technique

ABSTRACT

A left-handed metamaterial (LHM)-loaded monopole antenna is presented in this paper for size reduction technique. Numerical, analytical and experimental analyses are carried out to demonstrate the design procedure and model verifications. The antenna is composed of a single cell of the LHM and a monopole element. To realize miniaturization, the strategy of increasing the coupling between the LHM cell and the unloaded monopole antenna was chosen for the proposed antenna. The configuration reduces the resonant frequency of monopole by 13.15%. The proposed antenna is matched with a stepped impedance transformer, offers high efficiency, high gain and exhibits a dual-band property.

KEYWORDS:

• Antenna
• Left-handed metamaterial (LHM)
• Loaded antenna
• Microstrip antenna
• Miniaturization
• Monopole

Additional information

Funding

This work was supported by the fundamental Research Funds for the Central Universities [grant number 106112015CDJXY160007], [grant number 106112015CDJXY500001], Foundation and Advanced Research Projects of Chongqing Municipal Science and Technology Commission [grant number cstc2015jcyjA40001], [grant number cstc2016jcyjA1211]; and National Natural Science Foundation of China [grant number 61501067], [grant number 61501068].

Notes on contributors

Han Xiong

Han Xiong received M.Sc. degree from Yunnan Normal University in the year in 2010, and Ph.D. degree in Radio Physics from the University of Electronic Science and Technology of China. He is now a lecturer in Chongqing University. His research interests include antenna technology and metamaterials technology.

E-mail: [email protected]

Dong Li

Dong Li was born in 1983. He received his B.S. degree in Automation from Chengdu University of Information Technology, Chengdu in 2007, the M.S. degree in Signal Processing from Sichuan University, Chengdu, in 2010 and the Ph.D. degree in Radar Signal Processing from Xidian University, Shanxi, in 2014. He is now a lecturer in the Key Laboratory of Aerocraft Tracking Telemetering & Command and Communication, Ministry of Education, at Chongqing University. His research interests include array signal processing, synthetic aperture radar (SAR) imaging and ground moving target indication.

E-mail: [email protected]

Cheng Yang

Cheng Yang was born in 1984 in Yunnan. He received his B.Sc. and M.Sc. degrees from Yunnan Normal University, China, in 2007 and 2010, respectively. Now, he is a teacher in Yunnan Open University. His research interests include the numerical techniques in electromagnetics.

E-mail: [email protected]

Xiu Ming Li

Xiu Ming Li received the B.Sc. degree in Physics and M.Sc. degree in Optics from Yunnan Normal University of China, in 2007 and 2010, respectively. In 2010, she worked as a teacher in Yunnan Open University. She became a lecturer in 2013. In September 2015, she entered Tianjin University of China in order to get a Ph.D. degree in Instrument Science and Technology. Her research interest includes the use of numerical analysis in electromagnetics and the optical fiber sensing technology.

E-mail: [email protected]

Xiang Ou

Xiang Ou received the B.Sc. degree in Electronics and Information Engineering from Sichuan University, P.R. China in 2005, and the M.Sc. and Ph.D. degrees from London South Bank University, UK. Her research interest includes signal processing data analysis.

E-mail: [email protected]