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Current mode group delay equalisation using pole-zero mirroring techniques

Al-Hashim, B.M., Dudek, F. and Moniri, M. (2000) Current mode group delay equalisation using pole-zero mirroring techniques , pp. 257-63.

Record type: Conference or Workshop Item (Other)


This paper describes a new efficient method for designing current mode group delay equaliers. The method is based on introducing zeros into the right-hand s-plane by mirroring the poles of an LC ladder network. This is achieved by developing a current mode model capable of implementing the pole-zero mirroring technique. Using MO-OTA and grounded capacitors, the model is used to derive an nth-order active group-delay equaliser structure which is simpler, has better correction accuarcy and is less sensitivie when compared to cascaded based equaliers. The equalier design involves two optimisation algorithm. Simulated and measured results demonstarte that the equaliser can effectively compensate the delay characteristics of a 7th-order 5.75MHz lowpass elliptic vide filter to < 5ns ripple over 90% of the filter passband.

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Published date: August 2000
Organisations: Electronic & Software Systems


Local EPrints ID: 252642
PURE UUID: 0cc0ded5-8fc7-4f33-8b68-df9368b8d7a0

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Date deposited: 21 Aug 2000
Last modified: 18 Jul 2017 10:03

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Author: B.M. Al-Hashim
Author: F. Dudek
Author: M. Moniri

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