Comtech-ef-data PCB-4000 Manual do Utilizador descarregar pdf (Página 15)

1–1

Chapter 1. INTRODUCTION

1.1 Overview

Phase combining is a traditional technique that cost effectively increases the available output

powerofanampl ifier system.ThePCB‐40001+1PhaseCombiner(Figu re 1‐1),togetherwithtwo

SolidSta

tePowerAmplifiers(SSPAs),formacomplete 1+1phasecombinedsystemthat doubles

theavailableoutputpower.ThePCB‐40 00alsofeaturesa“softfail”configuration;i.e.,ifoneSSPA

experiencesafailure,thetot aloutputpowerwillbereducedbyonly3dB,ra

therthan6dB.

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Figure 1-1. Comtech EF Data PCB-4000 1+1 Phase Combiner Control Box (PCCB)

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Comtech-ef-data PCB-4000 Manual do Utilizador Página 15