Hybrid Rectangular Dielectric Resonator Antenna for Multiband Applications

ABSTRACT

This article examines the triple-band rectangular dielectric resonator antenna (RDRA) excited with novel composite feeding structure (combination of inverted H-shaped monopole and vertical strip). Three attractive features of proposed design are as follows: (i) composite feeding structure creates dual higher order modes in RDRA (i.e., ${\text{TE}}_{\delta ,2,1}^{\mathrm{x}}$ and ${\text{ TE}}_{\delta ,4,1}^{\mathrm{x}}$); (ii) triple-band characteristic is achieved with the help of hybrid antenna concept; and (iii) adjacent bands with higher order modes have been merged to enhance the bandwidth. Simulated outcomes have been practically confirmed with the help of developed prototype of proposed antenna. The proposed RDRA is operated over three frequency bands, i.e., 1.45–1.63 GHz, 3.62–4.1 GHz, and 4.55–5.86 GHz. The proposed design is quite suitable for WLAN (5.2/5.8 GHz), WiMAX (5.5 GHz), AMSAT (5.6 GHz), GPS (1.57–1.58 GHz), point-to-point microwave, and telemetry in the USA (4.44–4.99 GHz).

KEYWORDS:

• Rectangular DRA
• Triple band
• Partial ground plane
• Hybrid DRA
• Conformal strip
• Higher order modes
• WiMAX
• WLAN band

Disclosure statement

No potential conflict of interest was reported by the authors.

ORCID

Anshul Gupta http://orcid.org/0000-0002-5977-6378

Ravi Kumar Gangwar http://orcid.org/0000-0002-6137-1644

Additional information

Notes on contributors

Anshul Gupta

Anshul Gupta received MTech in microwave engineering from IIT-BHU Varanasi, India, in 2011. He is currently working towards PhD on investigations on wideband and multiband dielectric resonator antennas for microwave applications from Electronics Engineering Department, IIT ISM (Indian School of Mines), Dhanbad, (India).

He joined the Department of Electronics and Telecommunication Engineering, National Institute of Technology Raipur, Chhattisgarh, as an assistant professor in 2013. He has authored/co-authored several research papers in international journals/conference proceedings. His current research interest includes dielectric resonator antennas and computational electromagnetics.

Ravi Kumar Gangwar

Ravi Kumar Gangwar received the BTech in electronics and communication engineering from UP Technical University and PhD in electronics engineering from the Indian Institute of Technology, Banaras Hindu University (IIT-BHU), Varanasi, India, in 2006 and 2011, respectively. He is currently an assistant professor in Department of Electronics Engineering, Indian Institute of Technology (Indian School of Mines), Dhanbad, India. He has authored/co-authored over 130 research papers in international journals/conference proceedings. His research interest includes dielectric resonator antenna, microstrip antenna, and bio-electromagnetics. He is guided/guiding 10 PhD and 10 MTech students. He has completed/ongoing 04 R&D project-related dielectric resonator antenna and their applications from various funding agencies such as DRDO, SERB-DST, and ISRO.

He is a member of the Antenna and Propagation Society and Communication Society; Institute of Electrical and Electronics Engineers (IEEE), USA; Member of Institution of Engineers India (MIE); and Institution of Electronics and Telecommunication Engineers, India (MIETE). He is a reviewer of IEEE Antenna and Propagation Letters, IET Microwave and Antenna Propagation, IET Electronics Letters, Progress in Electromagnetic Research, International Journal of RF, Microwave and Computer Aided Engineering, International Journal of Electronics, International Journal of Microwave and Wireless Technology, Wireless Personnel Communication, etc. E-mail: [email protected]