Calabdan, Reynaldo Alvarez creator Ahmed, Kazi Mohiuddin Chairperson Erke, Tapio J. Examination Committee Chindakorn Tuchinda Examination Committee NOKIA Telecommunications, Finland Scholarship Donor text series technical report th Bangkok Asian Institute of Technology 1995 continuing eng 60 leaves The problem of the propagation of electromagnetic (EM) waves through layered media is of considerable engineering interest. Several studies analyzed the field strength of EM signal using the Field Theory solution which gives the exact numerical results. Here in this research, the behaviour of VHF-UHF signals in air-vegetation-ground media is studied using Plane-wave solution and compared with the Field Theory approach. The electric field and its components are obtained in the three layers for both cases and compared through computation. The results are found to be satisfactorily in agreement. Computationally the Plane-wave approach is faster. The choice of which approach to use depends on the balance between precision required in the calculation of the fields and the speed of computation. A research study submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Engineering and Technology Research Studies Project Report (M. Eng.) - Asian Institute of Technology, 1995 Electromagnetic waves Asian Institute of Technology. http://203.159.5.9/ait-thesis/detail.php?q=B15368 http://203.159.5.9/ait-thesis/detail.php?q=B15368 030696 20260818144255.0