Bijuan Chen, Erwin H. W. Chan, Xinhuan Feng, Xudong Wang, Bai-Ou Guan. Investigation on microwave photonic filter group delay performance[J]. Chinese Optics Letters, 2017, 15(8): 080604
- Chinese Optics Letters
- Vol. 15, Issue 8, 080604 (2017)
Fig. 1. Impulse response of a microwave photonic filter with (a) all positive taps and (b) positive and negative taps.
Fig. 2. Microwave photonic notch filter with (a) a sinc-function tap distribution impulse response and (b) a primary and secondary tap distribution impulse response.
Fig. 3. (a) and (c) Simulated amplitude response and (b) and (d) group delay response of the sinc-function tap distribution and the primary and secondary tap distribution microwave photonic notch filter.
Fig. 4. (a) and (c) Measured (solid lines) and simulated (dotted lines) amplitude response and (b) and (d) group delay response of the sinc-function tap distribution and the primary and secondary tap distribution microwave photonic notch filter.
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