I'm sorry, but I'm going to wait for mods to clean this up.
First, Chinese AESA is capable of 400 km detection vs 1 m^2 RCS, while the Irbis-E is only capable of 300 km detection. This is independent of AESA vs PESA.
Second, AESA is more efficient NOT just when they focus a single frequency, but because they don't need wiring to conduct power from the exciter. Each AESA module has its own exciter! It's a compact, if more complex design, which reduces overall complexity as well as transfer losses.
First, Chinese AESA is capable of 400 km detection vs 1 m^2 RCS, while the Irbis-E is only capable of 300 km detection. This is independent of AESA vs PESA.
Second, AESA is more efficient NOT just when they focus a single frequency, but because they don't need wiring to conduct power from the exciter. Each AESA module has its own exciter! It's a compact, if more complex design, which reduces overall complexity as well as transfer losses.