Dual-channel RMS power detector for RF

9 February 2005 Telecoms, Datacoms, Wireless, IoT

Analog Devices has introduced what it says is the industry's first dual-channel RF root-mean-square (rms) power detector for precision measurement of transmit and receive signals up to 2,7 GHz. The AD8364 is the industry's only power detector that measures two complex input signals simultaneously, enabling cellular base station system designers to solve one of their biggest challenges: the accurate measurement of RF signals.

The AD8364 is ideally suited for next-generation cellular infrastructure equipment using complex signals with constantly varying peak-to-average ratios, such as CDMA2000, W CDMA, and TD-SCDMA. Specific applications include power amplifier control and linearisation, antenna VSWR (voltage standing wave ratio) monitoring, transmitter power control, and automatic gain control circuits. Better control over the power and gain within a base station power amplifier allows designers to significantly reduce cost and improve operating efficiency.

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