Since last few years and in the present era of digitization everyone wants to become an IT incumbent. Intuitively saying, we are depending on technology which plays a vital role in our day to day life (Like Intelligent Communication and Internet of Things (IoT). Amid other technologies, in microstrip antenna Long Range-wide area network is one of the low power technologies which also provide a wider coverage area. So, it receives a huge attention from researchers working in the field of IoT applications. LoRa technology provides low data rate communication over a wider scale area. In the past few years, there is an increment in the research activities related to the antenna system design and its optimization in long range. With the increment in the wireless devices applications, the technology and antenna associated with these devices need to upgrade continuously for the efficient communication. In the antenna technologies for the Long Range-wide area network, the patch and printed antennas are the best options as it provides good features such as planar structure, light in weight and cheap with good antenna performance characteristics. The ease of their integration with the electronic system has opened a lot of new scope in the field of wide-area networks in IoT applications. In this article we have provided a summary of some of the latest research work published from 2016 to 2020 to explore more opportunities and challenges. First, a brief description of the technology is explained, and then the article discussed by categorizing the article into sections as : IOT, IoT Application with LoRa, Sensitization System, Implementation of these to design a Smart Cities and Real-Time Challenges and available Solutions.