Arthur James Wan - Carlsbad CA Anthony N. Kurlovich - Carlsbad CA Paul DeSize - Wildomar CA Shawn Scott Smith - Escondido CA
Assignee:
International Business Machines Corporation - Armonk NY
International Classification:
H03G 320 H03G 310
US Classification:
330140
Abstract:
RF power detectors having a linear variation in differential output with the output power in dBm of a power amplifier. The detectors include a rectifying diode sensing the peak RF signal coupled thereto. Additional circuitry adds additional incremental loads to the detector output at various increased power amplifier outputs to maintain a substantially linear variation in detector output with the output power in dBm of the power amplifier. The second output of the differential output of the detector is referenced to the same number of forward conduction diode voltage drops as the output from the rectifying diode, so that the differential output of the detector is substantially temperature independent A resonant circuit may be used to enhance the sensitivity of the detector circuit.