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GaN HPA Monolithic Microwave Integrated Circuit for Ka band Satellite Down link Payload
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 Title & Authors
GaN HPA Monolithic Microwave Integrated Circuit for Ka band Satellite Down link Payload
Ji, Hong-Gu;
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 Abstract
In this paper presents the design and demonstrate 8 W 3-stage HPA(High Power Amplifier) MMIC(Monolithic Microwave Integrated Circuits) for Ka-band down link satellite communications payload system at 19.5 GHz ~ 22 GHz frequency band. The HPA MMIC consist of 3-stage GaN HEMT(Hight Electron Mobility Transistors). The gate periphery of stage, stage and output stage is determined um, um and um, respectively. The fabricated HPA MMIC shows size , small signal gain over 29.6 dB, input matching -8.2 dB, output matching -9.7 dB, output power 39.1 dBm and PAE 25.3 % by using 0.15 um GaN technology at 20 V supply voltage in 19.5~22 GHz frequency band. Therefore, this HPA MMIC is believed to be adaptable Ka-band satellite communication payloads down link system.
 Keywords
GaN;MMIC;Ka-band;HPA;Payload;
 Language
Korean
 Cited by
 References
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