使用ADS进行LDMOS功放管匹配仿真方法MOTOROLA Freescale Semiconductor, Inc. SEMICONDUCTOR ENGINEERING BULLETIN Order this document by EB212/D EB212 Using Data Sheet Impedances for RF LDMOS Devices Prepared by: Darin Wagner Motorola Semiconductor Products Sector INTRODUCTION This document explains the format used by Motorola for presenting LDMOS impedance information for both single - ended and push - pull devices on RF Power data sheets. The purpose of this document is to clarify the use of this information in the initial design of input and output matching networks for these devices. Multiple methods are available for impedance extraction. The scope of this document does not cover detailed extraction methods; however, a possible extraction method is explained here. Whichever method is used, the main concern to be Frees……