CMOS wideband analogue delay stage |
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Authors: | Zhou L Safarian A Heydari P |
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Affiliation: | Dept. of Electr. Eng. & Comput. Sci., Univ. of California; |
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Abstract: | A new second-order all-pass filter with maximum achievable delay-bandwidth-product (DBW) is presented. The proposed circuit will be used as a wideband delay element in impulse radio ultra-wideband transceivers. Benefiting from a simple architecture, the proposed circuit achieves a 60 ps delay across a 10 GHz bandwidth, which is the largest delay ever reported over such a wide bandwidth. In addition, the most noticeable advantage of this delay circuit is the small variation of group delay across a wide frequency range, which means negligibly small phase distortion introduced by the circuit |
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