ficiency, little envelope correlation, and great isolation between ports. In a MIMO system, improper coupling between the radiating elements can dramat- ically increase signal correlation and reduce radiation efficiency. Exploiting pattern diversity to realize uncorrelated channels is one solution to this problem. Antenna diversity is a technique for improving the signal quality and strength of an RF link by using several antennas. At the transmission point, the data is split into numerous data streams, which are then recombined on the receiving side by another MIMO radio with the same number of antennas. The receiver is programmed to account for the little time difference between the receipts of each signal, any add- itional noise or interference, and even lost signals. Several types of research have been conducted in order to develop novel components and industrial technologies for future generations of wireless components and systems which are suitable for Internet of Things devices. Such devices show structures that meet IEEE research requirements for high data transmission, easy hardware components, consumption of low power, small sized, minimal interference, radiation patterns of omnidirectional type, phase response of linear type, amongst others. In 2002, the Federal Communication Commission designated industrial spec- trum bands ranging from (3.1 to 10.6GHz) for communication as well as data transfer. An antenna must have a wide bandwidth, decent radiation pattern, phase response of linear type, switchable capability as a front component of any wireless device, MIMO Antennas for loT and ISM Band depending on the design characteristics. In UWB systems, the antenna response must cover the whole operating bandwidth, and transmissions outside the designated band should have no effect on the antenna. As a result, the antenna becomes the most important component in determining the performance of a communication system such as UWB. The narrow bandwidth properties related to microstrip patch antennas used to be a