Influences of realization errors on hybrid filter banks A/D converters

This paper studies the error of the hybrid filter banks (HFB) due to analog realization errors. Small errors have a dramatic influence on the aliasing and distortion functions of HFB. The performance deteriorates with the error of analog devices growing. The simulations show that the aliasing and distortion errors based on power complementary pairs (PCP) are much lower than conventional HFB ADCs’. The value of the aliasing errors decreases above 50 dB as well as the distortion errors decreases about 2 orders. To prove the feasibility of PCP HFB, A simulation system of 12 bits, 1Gsps is realization.