An FSS Based Broadband Elliptical Tree Shaped Antenna with Augmented Gain for Wireless Applications

Abstract

This research presents a coplanar waveguide fed elliptical-based second iterative antenna for dual-broadband applications. The antenna radiator is formed after implementing two iterations of an elliptical-shaped patch in a tree-shaped manner and a modified semi-elliptical CPW plane. The antenna provides a bandwidth of 1.87 GHz (2.49–4.36 GHz) in the lower resonating band and 1.96 GHz (7.96–9.92 GHz) in the upper resonating band with peak gains of 2.84 and 6.15 dBi, respectively. An augmented gain of 9.48 dBi is obtained by implementing a single-layer FSS (frequency selective surface) beneath the designed antenna. The simulated and experimental results of the antenna with and without FSS are very similar regarding gain, impedance bandwidth, and directional radiation patterns. The antenna described in this article is simple, inexpensive, and low profile in nature. It can be used for Wi-MAX, lower sub-6 GHz 5G (n78), and x-band applications.

Keywords:

• CPW
• Dual-broad band
• Elliptical antenna
• FSS
• Gain augmentation
• Sub-6 GHz 5G
• WiMAX
• X-band

DISCLOSURE STATEMENT

No potential conflict of interest was reported by the author(s).

Additional information

Notes on contributors

Ananda Babu Devarapalli

Ananda Babu Devarapalli received his MTech degree in communication engineering in 2009 from Acharya Nagarjuna University, Guntur, Andhra Pradesh, India. He has total eleven years of teaching experience. Currently, he is pursuing a PhD degree in the area of high gain and broadband antennas at National Institute of Technology Agartala, Tripura, India. His research interests include high gain and broadbands, Frequency selective surface (FSS), UWB antennas, metamaterial-based antennas. Email: [email protected].

Tamasi Moyra

Tamasi Moyra obtained her ME degree in electronics and telecommunication engineering from Bengal Engineering and Science University in Shibpur, India, in 2007. She obtained her PhD in electronics and telecommunication engineering from the Indian Institute of Engineering Science and Technology (IIEST) in Shibpur, India, in 2014. She is currently working at the National Institute of Technology, Agartala, as an assistant professor and head of the Department of Electronics and Communication Engineering. Her publications include 50 peer-reviewed journal articles, international conference papers, and book chapters. Her current research interests include microstrip filters, planar circuits, LHM, antennas, meta-materials, etc. She is a member of the Institution of Engineers and IEEE. Email: [email protected]

B. T. P. Madhav

B T P Madhav received PhD in electronics and communication engineering with specialization in antenna field from KLEF. He is the Indian record, Asia-record and world-record holder for highest number of Scopus/SCI publications under age of 40 years. He authored 21 books and chapters and reviewer for 58 international peer reviewed journals. His area of interest includes antennas, RF & microwaves and liquid crystal applications. He published 15 patents and 528 research articles. He is member of 8 professional societies including IEEE and IETE. He has completed 5 sponsored projects and 52 consultancy projects. Email: [email protected]