5.8 GHz Radio Frequency Amplifier with 3 dB Π Network Attenuator

• Main Authors: Othman , A. R, Hamidon , A. H, Abdul Wasli., C,, Ting, J. T. H,, Mustaffa , M. F
• Format: Conference or Workshop Item
• Language: English
• Published: 2010
• Subjects: Q Science (General)
• Online Access: http://eprints.utem.edu.my/id/eprint/6856/1/5.8_GHz_Radio_Frequency_Amplifier_with_3_dB_Pi_Network_Attenuator_.pdf; http://eprints.utem.edu.my/id/eprint/6856/; http://www.ee.ui.ac.id/immac2010/

This paper presents a design of radio frequency amplifier (RFA), which operates at 5.8 GHz frequency for WiMAX application. The RFA designed used T matching network consist of lump reactive elements, 3 dB attenuator and microstrip line at the input and output impedance. The RFA developed in this project contributes a gain of 15.6 dB with overall noise figure of 2.4 dB. The overall measured bandwidth measures is 1.240 GHz with S parameters S11, S12 and S22 measured are -12.4 dB, -25.5 dB and -12.3 dB respectively. The RFA used FET transistor EPA018A from Excelics Semiconductor Inc.