Advances in Antenna Technology for Wireless Handheld Devices

Table 1

Measurement methods for characterization of antennas for wireless handheld devices and applicable figures of merit for respective method.

FOM	Table ref.	Reverberation chamber	Anechoic chamber	Multi-probe MIMO setup in anechoic chamber
Radiation efficiency	a	Yes	Yes	No
Impedance mismatch	b	Yes	Yes	No
Signal branch correlation	c	Yes, calculated direct from received signals	Yes, calculated from radiation patterns	Yes, calculated direct from received signals
Diversity gain	d	Yes, direct from received signal distributions	Yes, calculated from radiation patterns	Yes, direct from received signal distributions
MIMO capacity	e	Yes, from received signal statistics	Yes, from radiation patterns	Yes, from received signal statistics
TRP	f	Yes	Yes	No
SAR	g	No	No	No
TIS or TRS	h	Yes	Yes	No
TIS/TRS including diversity reception	h	Yes	No, no multipath fading in anechoic chamber	No
Average fading sensitivity (AFS)	i	Yes	No, no multipath fading in anechoic chamber	Yes
Data bit throughput (TPUT)	j	Yes	No, no multipath fading in anechoic chamber	Yes