High resolution 20 GHz wideband delay generator |
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| Authors: | Morton S.L. Elliott K. Rodwell M. |
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| Affiliation: | HRL Labs., Malibu, CA, USA; |
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| Abstract: | A digitally-programmable method for linearly controlling signal delay over a wide frequency and delay range has been developed. Circuits were fabricated in the HRL's G2+ InP HBT technology. Test results at 20 GHz confirm simulation results, showing a 5 ps range in delay, ramped in 16 steps to provide a 0.3 ps resolution step. Larger delay ranges are possible by combining several of the delay cells in series. |
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