A 2.4 GHz 20 W 8-Channel RF Source Module with Improved Channel Output Balance
| العنوان: | A 2.4 GHz 20 W 8-Channel RF Source Module with Improved Channel Output Balance |
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| المؤلفون: | Sooji Bae, Tae-Wan Kim, Taejoo Sim, Hyosung Nam, Junghyun Kim |
| المصدر: | Applied Sciences, Vol 11, Iss 7491, p 7491 (2021) Applied Sciences Volume 11 Issue 16 |
| بيانات النشر: | MDPI AG, 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | Technology, Materials science, QH301-705.5, QC1-999, Gallium nitride, law.invention, plasma generator, chemistry.chemical_compound, law, General Materials Science, Biology (General), Instrumentation, QD1-999, Fluid Flow and Transfer Processes, SSPA, Water jacket, Computer cooling, business.industry, Process Chemistry and Technology, Amplifier, Physics, Transistor, GaN HEMT, General Engineering, RF source module, multi-channel, Engineering (General). Civil engineering (General), Computer Science Applications, Power (physics), Chemistry, chemistry, Optoelectronics, RF, Radio frequency, TA1-2040, business, channel output balance, Communication channel |
| الوصف: | This paper presents a 2.4 GHz 20 W 8-channel radio frequency (RF) source module with improved channel output balance. The proposed RF source module is composed of an RF source generation/DC control part, a power amplification part, and a power dividing part. A 2-stage power amplifier (PA) is combined with gallium nitride high-electron-mobility transistors, including a 25 W transistor and 2-way combined 120 W transistors as the drive and main PA, respectively. In addition, a structure was applied to improve the channel output balance compared to that of the previous module, and the differences of the phase and magnitude of the output power between channels are alleviated within 0.35° and 0.18 dB, respectively. A water jacket was implemented under the drive and main PAs for liquid cooling however, unlike in the previous work, it was designed by optimizing the size of the water jacket and reducing unnecessary materials using a brazing process. The output power at each channel was 43 dBm, and the drain efficiency was more than 50% at 2.4 GHz. The total module size was 244 mm × 247.4 mm × 30 mm, and its volume was reduced by approximately 58.4% compared to that of the previous module. |
| وصف الملف: | application/pdf |
| اللغة: | English |
| تدمد: | 2076-3417 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a380f0996bcce8388484beb4f8a3a491 https://www.mdpi.com/2076-3417/11/16/7491 |
| Rights: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....a380f0996bcce8388484beb4f8a3a491 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 20763417 |
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