Design of X-Band High Power Cascade Amplifier

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  • Author: Yeap Yean Wei, Tan Soon Hie and Goh Cher Hiang
To ensure sufficient link budget of a microwave link, the high power amplifier (HPA) is of one of the essential sub-circuits used to amplify the modulated signal prior to the trans-mission. In the design of a high frequency HPA, the goal is to achieve sufficient power gain, out-put power and high PAE at the desired fre- quency. However, to achieve optimum electrical performance of a HPA, there are a lot of consid-erations that need to be taken care of such as impedance matching, DC bias network design, grounding and heat sinking of the HPA device.
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