lkpassociation.blogg.se - 146 mhz bandpass filter 1 mhz

The central transmission frequency, bandwidth, and spectral shape of the passband are all independently adjusted. The shape factor of the filters, defined as the ratio between their − 20 dB bandwidth and their − 3 dB bandwidth, is between 1.35 and 1.5. The selectivity of the filters is better than that of the corresponding previous arrangements by about 15 dB. Filters having a single passband of 250 MHz–1 GHz bandwidth are demonstrated, with selectivity of up to 44 dB. In this work, we report a significant enhancement in the selectivity of SBS-based MWP filters.

Stimulated Brillouin scattering (SBS) in optical fibers has long been used in frequency-selective optical signal processing, including in the realization of microwave-photonic (MWP) filters.

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