@inproceedings{49b5f9e9cadd4efd94ff53de421aea42,
title = "Payload power amplifier with average power tracking in Ka-band satellite downlink",
abstract = "In this paper, a K-band power tracking high power amplifier (HPA) module using a digital potentiometer integrated feedback is proposed. The supply modulator consists of a pulse width modulation (PWM) controller, DC-DC converter and a digital potentiometer integrated feedback loop, and provides dynamic supply voltages to HPA for the optimal efficiency. The digital potentiometer is operated as a voltage-controlled resistor whose resistance is automatically adjusted by a sampled RF input to HPA and consequently changes the feedback voltage that determines a supply voltage. Also, the designed module package using zig based on aluminum for minimizing self-resonance, zig loss characteristic is optimized. The designed HPA module is verified by a PAE better than 17% maintained over 31 dBm output power at 20 GHz at which Ka-band satellite downlink is allocated.",
author = "Moon, {Seong Mo} and Shin, {Dong Hwan} and Yom, {In Bok} and Lee, {Moon Que}",
note = "Publisher Copyright: {\textcopyright} 2015 IEEE.; 2015 65th IEEE Electronic Components and Technology Conference, ECTC 2015 ; Conference date: 26-05-2015 Through 29-05-2015",
year = "2015",
month = jul,
day = "15",
doi = "10.1109/ECTC.2015.7159885",
language = "English",
series = "Proceedings - Electronic Components and Technology Conference",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "2054--2059",
booktitle = "2015 IEEE 65th Electronic Components and Technology Conference, ECTC 2015",
address = "United States",
}