تفاصيل الأوراق البحثية

High Gain Quadruple-Cascode GaN Low-Noise Amplifier for Ku-Band Satellite Applications

خلاصة البحث

The future of satellite communication (SATCOM) is being revolutionized by constellations of medium Earth orbit (MEO) and low Earth orbit (LEO) satellites, delivering high-speed, low-latency connections with comprehensive global coverage. A critical requirement for low-noise amplifiers (LNAs) in these advanced satellite systems is the ability to maintain low noise levels while achieving high gain. This challenge is particularly pronounced at Kurz (Ku)-band microwave frequencies and above. This study explores the development of gallium nitride (GaN) high electron mobility transistor (HEMT) LNAs in innovative configurations—cascode, triple-cascode, and quadruple-cascode—tailored specifically for Ku-band satellite applications. Employing Keysight ADS design software, the LNAs are carefully designed, with their matching circuits optimized to enhance overall performance. All three LNAs demonstrate comparable noise performance, with a noise figure (NF) of approximately 2.2 dB at 13 GHz. However, the quadruple-cascode LNA stands out, achieving a remarkable gain of 37 dB at the same frequency, compared to 15.9 dB for the cascode and 25 dB for the triple-cascode configurations. The impressive gain of the quadruple-cascode LNA, i.e., more than double that of the cascode LNA, highlights its potential as a highly effective topology for microwave and millimeter-wave LNAs. The advancement paves the way for enhanced satellite communication capabilities.

الباحثون
سنة النشر
2024
مجالات البحث
الاتصالات عبر الأقمار الاصطناعية
الناشر
Space Research Conference
نوع البحث
مساهمة مؤتمر
الأبحاث ذات الصلة