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http://dx.doi.org/10.6109/jkiice.2010.14.12.2609

Design of Temperature Compensation Circuit for Satisfying the Intermodulation Specification of Power Amplifier  

Park, Won-Woo (금오공과대학교 전자공학부)
Kim, Byung-Chul (금오공과대학교 전자공학부)
Cho, Kyung-Rae (금오공과대학교 전파통신공학과)
Lee, Jae-Buom (금오공과대학교 전파통신공학과)
Abstract
Temperature compensation circuit is implemented by using the temperature sensor, and Intermodulation (IM) Specification of Power Amplifier is satisfied in the temperature range of $-30^{\circ}C{\sim}60^{\circ}C$ with this temperature compensation circuit. The output voltage of temperature compensation circuit which vary 170mV with the temperature is applied to the gate of TR in 3W output power Amplifier. As the result, right 3rd IM component is -18.5~-26dBm, left 3rd IM component is -18.5~-35dBm, and the left and right 5th IM component is -24~-26dBm in the temperature range of $-30^{\circ}C{\sim}60^{\circ}C$. It is confirmed that IM specification of power amplifier which is under -17dBm in the whole temperature range is satisfied.
Keywords
Power Amplifier; Temperature Sensor; Temperature Compensation Circuit; Intermodulation Characteristics;
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Times Cited By KSCI : 1  (Citation Analysis)
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