A Two-Step Identification Approach for Twin-Box Models of RF Power Amplifier

Table 1

PAs coefficients used for simulation.

Wiener PA	𝐻(𝑧)=1+0.1𝑧^−1+0.3𝑧^−2
	𝑏1=1.0108+0.0858𝑗,  𝑏3=0.0879−0.0583𝑗,  𝑏5=−0.1392−0.0989𝑗
Hammerstein  PA	𝑏1=1.1190+0.0837𝑗,  𝑏3=0.1219−0.1513𝑗,  𝑏5=−0.5122−0.3105𝑗
	𝐻(𝑧)=1+0.5𝑧^−2
W-H PA	𝐻1(𝑧)=(1+0.1𝑧^−1+0.3𝑧^−2)/(1−0.2𝑧^−1)
	𝑏1=1.0108+0.0858𝑗, 𝑏3=0.0879−0.0583𝑗, 𝑏5=−0.1392−0.0989𝑗
	𝐻2(𝑧)=(1−0.1𝑧^−2)/(1−0.1𝑧^−1)
Mem. poly. PA	𝑏10=1.4513+0.932𝑗,  𝑏11=−0.123−0.023𝑗,  𝑏12=0.152−0.230𝑗,
	𝑏30=−0.332−0.430𝑗,  𝑏31=0.322+0.243𝑗,  𝑏32=−0.123−0.120𝑗,
	𝑏50=−0.255−0.254𝑗,  𝑏51=−0.0213−0.411𝑗,  𝑏52=0.0233+0.233𝑗.