Coherence bandwidth measurements in a suburban microcell at 62.4 GHz

Results of experiments made at 62.4 GHz to measure the coherence bandwidth in a suburban mobile radio environment are presented. The correlation coefficients between envelopes separated in frequency are measured and expressed as functions of distance from the base station. They are found to be highly variable with the location of the receiver in the microcell. From these data, the frequency correlation function is computed and used to calculate the coherence bandwidth. Values of the coherence bandwidth for correlation levels of 0.5, 0.7 and 0.9 are given for 90% of the time