Executive Summary : | The rapid growth of wireless communication systems and the increasing demand for Internet of Things (IoT) applications have led to the exploration of new frequency bands and antenna technologies. The millimeter-wave frequency range, particularly the Ka-band (26.5 GHz-40 GHz), holds great potential for high-speed data transmission and reliable connectivity in satellite-based IoT applications. Satellite communication plays a critical role in expanding the present IoT connectivity to remote or isolated areas where traditional global networks may be inadequate or unavailable. One such application is at the time of natural disasters and emergencies, global connectivity can be damaged or disturbed, resulting in disrupted communication. In such circumstances, there is requirement of real-time monitoring, video surveillance which requires very high data rate and reliable connection with timely and efficient data transfer, enabling effective decision-making and analysis which are often beyond the capability of global networks which may be damaged. In addition to connectivity issues at inaccessible places, there is need for faster and more reliable communication, and millimeter-wave frequency bands provide the best solution due to their abundant bandwidth availability. In order to harness the potential of the millimeter-wave Ka band for satellite services, it is necessary to shift attention to the research on design and development of efficient and high-performance antenna systems which can operate in these high frequencies. Circularly polarized dielectric resonator antennas (DRAs) have gained attention for their ability to achieve wide bandwidth, high gain, and stable radiation characteristics. Their circular polarization property allows for improved signal reception and reduced polarization mismatch losses, making them suitable for satellite communication applications where signals may encounter various polarization orientations. The main objective of this project is to design and develop a circularly polarized dielectric resonator antenna optimized for the Ka-band frequency range. The antenna will be carefully designed to exhibit desirable characteristics such as high gain, wide bandwidth, low axial ratio, and good impedance matching. These characteristics are crucial for achieving reliable and efficient communication in satellite based IoT applications. The developed antenna will undergo thorough testing and characterization to evaluate its performance in terms of radiation pattern, gain, bandwidth, axial ratio, and impedance matching. Performance comparisons with existing antennas in terms of size, cost, and performance will also be conducted. The project will provide valuable insights into the design considerations and performance analysis of millimeter-wave circularly polarized DRAs for satellite-IoT applications in the Ka-band |