A novel miniaturized antenna with multiple band-notched characteristics for UWB communication applications

ABSTRACT

A novel miniaturization planar ultra-wideband antenna with triple-notched bands is proposed. The antenna mainly consists of an elliptical patch, a rectangular split-ring patch with a π-shaped slit and a T-shaped slit, and two small additional patches. Two different type slits are adopted to realize multiple-notched bands and reduce the antenna size. The designed antenna has a small dimension of 17 × 16 × 1.6 mm³. The simulated and measured results show the antenna has a very wide impedance bandwidth of 2.96–19.0 GHz with Return Loss less than −10 dB, except triple notched bands of 3.30–3.72, 5.13–5.82 and 7.04–7.92 GHz, respectively, covering the WiMAX, WLAN and X-band systems. Furthermore, surface current distributions, gain, efficiency, radiation patterns and group delay characteristics of the antenna are also discussed. The results show that the antenna has high radiation efficiency, stable radiation pattern and lower group delay time.

KEYWORDS:

• Ultra-wideband
• triple band-notched characteristics
• different type slits
• size-reduced
• printed planar antenna

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Funding

This work was supported by the National Natural Science Foundation of China [grant numbers 61674056, 61675067, U1501253]; Science Research Fund Project of Hunan University of Science and Technology [grant number KJ1812].

Notes on contributors

Zhijun Tang

Zhijun Tang received his Ph.D. Degree in Electrical Engineering from Hunan University in 2010. His main research interests are UWB antenna design, RFID electromagnetic modeling and antenna design.

Xiaofeng Wu

Xiaofeng Wu received his Ph.D. Degree in Microelectronics from Xidian University in 2010. His main research interests are design and optimization of high-power microwave power amplifiers.

Jie Zhan

Jie Zhan received his Ph.D. Degree in Electronics from Hunan University in 2011. His main research interests are wireless communication technology.

Zaifang Xi

Zaifang Xi received his Master's Degree from Hunan University in 2003. His current research interests include signal processing and communication system.

Shigang Hu

Shigang Hu received his Ph.D. Degree in Microelectronics from Xidian University in 2009. His current research interests include analog IC design and semiconductor devices.