True time delay
True time delay (TTD) is an electrical property of a transmitting apparatus and refers to invariance of time delay with frequency or to linear phase progression with frequency. TTD is an important characteristic of lossless and low-loss, dispersion free, transmission lines. TTD allows for a wide instantaneous signal bandwidth with virtually no signal distortion such as pulse broadening during pulsed operation.
References
- "True Time Delay". Microwaves101, IEEE.
- Julius O. Smith III. "Phase Delay and Group Delay". Department of Electrical Engineering, Stanford University.
See also
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