• Ravi Kumar
• Prof. Dr. Mahesh Chandra Mishra

Nowadays the Internet of Things (IoT) has drastically reformed our engagement with the surrounding world, morphing routine items into smart, interconnected systems. This change owes its realization to advancements in the wireless communication technologies that play an essential role in driving IoT devices. In these technologies, the antenna holds a pivotal position as it forms the connecting link between the wireless gadget and the medium of communication. Exponentially increasing ocean of users connected to the internet, due to the usage of multiple wireless devices by a single user, demands high data rate transfer with low latency rate for development of modern wireless communications. Moreover, the present wireless communication systems suffer from more complex challenges due to the increased demand for compact devices. The antenna with four-port MIMO, where each antenna contains two-element arrays to enhance the gain of the antenna, is proposed. The antenna resonates at 25.5–29.5 GHz with a peak gain of 8.3 dBi. A two-port multiple input, multiple output (MIMO) antenna for dongle applications and smartwatch is presented in with the improvement of return loss and frequency band by the introduction of defected ground structure (DGS). In addition, DGS is also used to optimize the isolation between the units of the MIMO antenna. The Envelop Correlation Coefficient (ECC) is an essential parameter of the MIMO antenna, which can be lowered by using DGS

Wireless Communication, Return Loss, Gain, MIMO antenna

"Study of Multi-band Compact Rectangular Microstrip Patch Antenna for wireless Communication Applications", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.10, Issue 9, page no.g33-g36, September-2023, Available :http://www.jetir.org/papers/JETIR2309622.pdf

"Study of Multi-band Compact Rectangular Microstrip Patch Antenna for wireless Communication Applications", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.10, Issue 9, page no. ppg33-g36, September-2023, Available at : http://www.jetir.org/papers/JETIR2309622.pdf