Journal
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS
Volume 8, Issue -, Pages 678-681Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LAWP.2009.2025149
Keywords
Coherence bandwidth; delay spread; fading channel; mode bandwidth
Funding
- Swedish Governmental Agency for Innovation Systems (VINNOVA)
- Swedish Foundation for Strategic Research (SSF)
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This letter finds the relation between different parameters that characterize the reverberation chamber as a channel emulator for over-the-air (OTA) testing of wireless devices and components. It is shown experimentally for the first time that the coherence bandwidth is proportional to the average mode bandwidth of the chamber. Both coherence bandwidth and average mode bandwidth increase when the chamber is loaded with absorbing objects, and thereby, the reverberation chamber can be controlled to emulate many different real-life environments. The relationship between RMS delay spread and coherence bandwidth are found from the measured channel response and are equal to the theoretical relation for isotropic multipath environments, being within previously published fundamental limits.
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