Measuring Radiation Characteristics of Remote Keyless Entry Transmitters

In this paper a simple technique to determine real world radiation characteristics of portable communications devices is outlined, with particular emphasis placed on the measurement of remote keyless entry (RKE) hand-held transmitters. Device radiation pattern and polarization are characterized without the need of error causing feed cables or disparate time coherent sources, making it particularly useful when measuring sources that couple to the human body. Polarization purity is collected in a single measurement spin, making characterization of multiple on-body scenarios practical with human subjects.