Modelling noise and delay in VLsl circuits
نویسندگان
چکیده
In a second experiment, a microstrip patch antenna was attached directly to a thermalite block (440 x 215 x 100 mm) and the dipole-like radiation panems measured in an anechoic chamber. The results given in Figs. 20 and h show the effect of placing radar absorbent material (RAM) on the block ends to absorb the surface wave contribution. With no absorbent material the surface waves result in some secondary radiation at the block ends thus creating a ripple interference pattem. The surface wave excitation is clearly a polarisation-dependent propagation mechanism.
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