Two-Element Composite Dielectric Resonator-Based MIMO Antenna for WLAN and WiMAX Application Shivani Anand, Gagandeep Bharti, and Anand Sharma 1 Introduction The MIMO technique in the present time is used considerably for wireless commu- nication. It will be used in future technology because of its several benefits. MIMO technology uses multiple antennas for wireless point [1]. MIMO technology plays an important role in achieving high data level, and optimizing performance for most advanced wireless communication network, a substantial improvement in channel capacity may be accomplished without the need for extra bandwidth or more trans- mitting power by installing such a MIMO system [2]. Ishimiya first identified and demonstrated the principle of MIMO DRA [3]. In recent year, DRA have gained a lot of interest due to their high efficiency, small size, easy excitation, and large impedence bandwidth. DRA has also shown good performance in MIMO [4]. The first candidate identified as the dielectric resonator antenna (DRA) was cylindrical dielectric resonator antenna (CDRA) in 1983 [5]. The compact and multiband DRA for mobile portable device for WiFi, LTE, and WiMAX available as two dielec- tric resonator are used, but there are large ground size and high mutual coupling value especially the higher band [6]. Wireless LAN (WLAN) is a wireless computer network that connects two or more computer used for wireless communication which can establish a local area network (LAN) in a restricted area such as a home, school, computer laboratory and office. The proposed 8-port diversity antenna is suitable for WLAN application in the frequency range between 5.6 and 5.9 GHz [7]. WiMAX is S. Anand · G. Bharti (B ) Department of Electronics and Communication Engineering, Madan Mohan Malaviya University of Technology, Gorakhpur, Uttar Pradesh, India A. Sharma Department of Electronics and Communication Engineering, Motilal Nehru National Institute of Technology Allahabad, Prayagraj, Uttar Pradesh, India e-mail: anand@ece.ism.ac.in © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2022 A. Dhawan et al. (eds.), Recent Trends in Electronics and Communication, Lecture Notes in Electrical Engineering 777, https://doi.org/10.1007/978-981-16-2761-3_72 815