UHF bent-slot antenna system for portable equipment—II: Receiving performance in urban areas

The receiving performance of UHF portable equipment with a bent-slot antenna is studied on the basis of experimental results. The received power increase in the experiment is analyzed by applying the ray and random models to urban area structures. The analysis shows that the bent-slot antenna designed with both vertical and horizontal polarization components has contributed to an increase in received power for some limited angles of wave incidence, as a result of combined reception of cross-polarized waves in an actual environment.