Aaron Don M. Africa et al., International Journal of Emerging Trends in Engineering Research, 8(7), July 2020, 3373 - 3378 3373 ABSTRACT Antennas have become an intrinsic part of our lives as there is a progression of technology and not many people understand how information is transferred through these devices. There are various ways of determining how antennas can transmit energy efficiently, and not everything is seen on the antennas themselves, as there are some problems that may arise from the transmission cables that they are connected to as well. Some ways of determining how an antenna can send energy signals are through an antenna’s radiation pattern. An antenna radiation pattern is a way to determine how a specific antenna radiates energy or propagates information. This study deals with understanding radiation pattern graphs, array patterns, beam scanning, and many other graphs. The understanding of all these is to efficiently be able to use antennas and reach the maximum possible distance that it can achieve at the right positioning of the antenna, and where it can have a signal boost from another device. This system can be used for low power smart antenna systems. Key words: Radiation Pattern, Azimuth, Directivity, Antenna Systems, Low Power Smart Antenna Systems. 1. INTRODUCTION The antenna was one of the breakthroughs that we're able to shape and mold the way we transmit and receive information daily, but how does an engineer know if the antenna is working the way it should, or how effective it can radiate energy and how far it can transmit it from? That is where the radiation pattern and other graphs come in [1,2]. The computations on how an antenna is designed were based on anisotropic source or a source where it can radiate energy equally in all directions. However, in practical applications, this is far from true as various factors can affect the performance and transmission of an antenna. The transmission of antenna signals would also depend on where the antenna is located and what surrounds it. With, the isotropic source is being used as a basis because it is the closest way of having a rough estimate on what is expected on the antenna being designed [3,4]. Understanding how antennas operate is important for engineers as it is the heart of our generation where the gathering of information is constantly being acquired through the use of electronic devices, of which they can receive it through antennas one way or another. The way we use the internet would also require antennas and satellites to work as this is the basis of how transmission of information occurs worldwide. Without the development and understanding of how these antennas operate, we would probably not come as far we have today [5,6]. Although these concepts and theories are already developed, there is still room for improvements to be made for efficiencies of systems to have lesser power losses that may occur, and maybe more advancements can be discovered shortly to maximize the potential of how we can communicate with each other around the world at cheap costs [7,8]. 2. BACKGROUND OF THE STUDY Antennas have made a huge impact on how our society works today, therefore it is important to understand how these antennas work to be able to understand why there are areas with very strong signal reception from a certain carrier, or why there is no reception in a specific area. For example, for antennas that are mounted on ships, receiver antenna mounted on the ship may receive data from more than one path which may include either a constructive or destructive interference and a phase shift in the signal received [9]. Antennas come in different styles and sizes depending on what its purpose is. There are simple dipole antennas, Yagi Uda antenna, a folded dipole antenna, and many others. An antenna array is an antenna that is composed of many different antennas acting as a single antenna for transmitting and receiving radio waves. Antenna arrays are important it can have a high gain and directivity along with beam scanning, an advantage of using an antenna array is to control the radiation Development of an Antenna Array Radiation Model in Propagation Systems for a Low Power Smart Antenna System Aaron Don M. Africa, Jonathan Lao Department of Electronics and Communications Engineering De La Salle University, Manila 2401 Taft Ave., Malate, Manila 1004, Philippines, aaron.africa@dlsu.edu.ph ISSN 2347 - 3983 Volume 8. No. 7, July 2020 International Journal of Emerging Trends in Engineering Research Available Online at http://www.warse.org/IJETER/static/pdf/file/ijeter80872020.pdf https://doi.org/10.30534/ijeter/2020/80872020