Distributed Wideband Power Amplifier Using Reactive Coupled Line Feedback Structure
Publish Year: 1394
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
KBEI02_010
تاریخ نمایه سازی: 5 بهمن 1395
Abstract:
A wideband and flat gain distributed power amplifier using a GAN high electron mobility (HEMT) transistor has been designed. The frequency range covers 700 MHz to 4.5 GHz. The small signal gain has the average value of 10 dB. A reactive distributed shunt feedback structure is introduced and implemented by means of microstrip coupled lines. Also, fully distributed input and output impedance matching networks are implemented. The design and simulations are accomplished by advanced design system tool (ADS). The design has undergone large signal, small signal and electromagnetic analysis (EM-simulation). At VDS = 28 V and IDS = 340 mA. Down to the output power back off of 5 dB at 4.5 GHz, power performance obtained with PAE higher than 35% where the maximum output power is 40.4 dBm.
Keywords:
broadband power amplifier , coupled lines , lumped to distributed conversion , reactive shunt feedback , lowpass matching networks , nonlinear optimization , co-simulation
Authors
Hamid Yadegar Amin
Dept. of Electronics and Communications Eng. Istanbul Technical University Istanbul, Turkey
Ramazan Köprü
Dept. of Electrical-Electronics Eng. Işık University Istanbul, Turkey
B.S Yarman
Dept. of Electrical-Electronics Eng. Istanbul University Istanbul, Turkey
Serdar Özoğuz
Dept. of Electronics and Communications Eng. Istanbul Technical University Istanbul, Turkey
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