Antenna performance measurements using wireless sensor networks

In this paper, we present the results of an experimental test methodology that was used to characterize the performance of various test antennas (commercially available and developed in-house) within a wireless sensor network node. The test method employed measures the relative performance of a number of test antennas when incorporated within a wireless sensor network node in an open-field test environment. This methodology was explored, as a means of obtaining a simple qualitative assessment of antenna performance compared to accurate, but expensive RF test hardware and anechoic chamber testing. The measured results yield some useful qualitative data in terms of antenna performance that can help in comparing and selecting a particular antenna for a wireless sensor network, as well as helping to identify cases in which detailed RF test measurements and equipment may be required for more accurate characterization.