A Propagation Model for Mixed Paths Using Dyadic Green's Functions: A Case Study over the River for a City-River-Forest Path
; Eras, L.
Moreira, A. A.
; Correia, L.
; Barros, F.
; Cavalcante, G.
IEEE Antennas and Wireless Propagation Letters Vol. 17, Nº 12, pp. 2364 - 2368, December, 2018.
ISSN (print): 1536-1225
Journal Impact Factor: 1,312 (in 2008)
Digital Object Identifier: 10.1109/LAWP.2018.2875333
Download Full text PDF ( 1 MB)
This letter provides a model using dyadic Green’s functions for predicting the electric field in mixed paths for UHF. A new approach is used considering propagation in vertical layers to obtain new equations. The development of the model was accomplished in a mixed city–river–forest path located in the Amazon region. Measurement data were collected from a digital TV broad- casting transmitter. A comparative analysis was carried out among the proposed model, ITU-R P.1546-5, measurement data, and ITU- R P.1546-5 using Millington’s curve fitting. The measurement data and the proposed model are in a good agreement. The results con- firm the efficiency and applicability of the proposed model with RMS error not greater than 1.5 dB