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ABSTRACT
In this paper, a miniaturized dual broadband hexagonal slot monopole antenna is proposed and investigated. A hexagonal slot antenna with microstrip feed is designed as a reference antenna and optimized for its broadband behavior. First, the miniaturization is investigated by bisecting the reference antenna through its symmetry plane. The dual broadband behavior with further miniaturization is achieved by scaling down the bisected antenna. The proposed antenna is 75.5% miniaturized and have dual broadband behavior as compared to the reference antenna. The proposed antenna from its 10 dB |S11| curve shows that it has the bands from 2.92 to 7.18 GHz and 9.13 to 12.26 GHz, suitable for applications in 5.2/5.8 GHz wireless local area network (WLAN) bands, 3.5/5.5 GHz worldwide interoperability for microwave access (WiMAX) bands and partially in X-band (radar, terrestrial communications, etc.). The proposed and reference antennas are fabricated and measured. The proposed antenna has optimized dimension of 28 × 14 × 1.5 mm3 and has monopole-like radiation pattern in both the planes (E-plane and H-plane). The measured and simulated results are in good agreement. The proposed antenna has a compact size and exhibits dual broadband behavior, good radiation characteristics, and peak gain from –1.14 to 5.85 dBi.
Additional information
Notes on contributors
Saurabh Kumar
Saurabh Kumar received the BTech degree in electronics and communication engineering from Uttar Pradesh Technical University, Lucknow (India) in 2008 and the MTech degree in digital communication from Guru Gobind Singh Indraprastha University, Delhi (India) in 2010. He is pursuing his PhD from Indian Institute of Information Technology, Design and Manufacturing, Jabalpur (India) since 2012. His research interest includes planar and microstrip patch antennas, artificial materials like meta-materials, electromagnetic theory, RF, and microwave engineering, etc.
E-mail: [email protected]
Dinesh Kumar Vishwakarma
Dinesh Kumar Vishwakarma is an associate professor of electronics and communication engineering at Indian Institute of Information Technology Design and Manufacturing (IIITDM), Jabalpur, India. He received the PhD degree in electrical communication engineering from Indian Institute of Science, Bangalore in 2005. He was a visiting foreign researcher in Japan from 2006 to 2009. Prior to this, he was employed in Ministry of Communication & IT through Indian Engineering Services. His research interests include computational electromagnetics, microwave circuits, antenna and wave propagation, photonics and optical communication.
E-mail: [email protected]