Effect of Antenna Parameters on the Field Coverage in Tunnel Environments

Figure 2

Comparison of the received power curves obtained by different methods with measurement of (a) the azimuth and elevation angles of antenna beam are 30°, and beam width is 15°; (b) comparison of the received power obtained by the proposed modal method with the measurement result in the Massif Central tunnel [20]; and (c) comparison of the received power at different frequencies obtained by the proposed method and ray tracing method.

(a)

(b)

(c)