Results of experiments made at 62.4GHz in a long narrow corridor to me
asure the coherence bandwidth are presented. The correlation coefficie
nts between envelopes separated in frequency are measured and expresse
d as functions of distance between terminals. They are found to be hig
hly variable with the location of the terminals in the microcell. From
these data the frequency correlation function is computed and used to
calculate the coherence bandwidth. The coherence bandwidths for corre
lation levels of 0.5, 0.7 and 0.9 are given for 90% of the time.