کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
446584 1443166 2013 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A fully integrated 2.4 GHz CMOS high power amplifier using parallel class A&B power amplifier and power-combining transformer for WiMAX application
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر شبکه های کامپیوتری و ارتباطات
پیش نمایش صفحه اول مقاله
A fully integrated 2.4 GHz CMOS high power amplifier using parallel class A&B power amplifier and power-combining transformer for WiMAX application
چکیده انگلیسی

A new structure integrated power amplifier with watt-level output power is presented in a standard 0.18 μm CMOS process for WiMAX applications. A parallel cascode class A&B power amplifier with optimized widths is proposed to increase linearity and efficiency simultaneously. A novel interleaved PCT power combiner is proposed for increasing output power that combines output current of two similar class A&B power amplifiers. Proposed interleaved transformer heightens coupling factor compared to typical transformer.The proposed power amplifier with 3.3 V power supply provides maximum output power of 32.5 dBm and power added efficiency of 37.9% at 2.4 GHz operating frequency. The proposed power amplifier exhibits high output power of 32.3 dBm at 1 dB compression point. The simulation results for proposed PA with modulated OFDM signal show that −31 dB error vector magnitude at the average power of 25 dBm can be achieved.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: AEU - International Journal of Electronics and Communications - Volume 67, Issue 12, December 2013, Pages 1030–1037
نویسندگان
, , ,