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This is a UWB signal by definition since its fractional bandwidth (β/f o ) is greater than 0.25.
The passive fractional bandwidth of a system with a Qt of 300,000 is 2.4 × 10−6, or 84 mHz at a carrier frequency of 35.5 kHz.
These are our fundamental advancements: achieving an exceptionally high system Q with no external impedance matching network and an effective fractional bandwidth beyond the passive Bode-Fano limit4.
The designed BPA shows a fractional bandwidth of 40%, from 1.8 GHz to 2.7 GHz.
The proposed antenna provides 167% fractional bandwidth from 2.5 GHz to 28 GHz.
The filter has a center frequency of 15.11 GHz with a fractional bandwidth of 30%.
The UWB radio frequency (RF) pulse or waveform is defined by its large fractional bandwidth.
The fractional bandwidth is about 13.5% with respect to the center frequency 2.52 GHz.
Furthermore, wide-band performance is also achieved, with a fractional bandwidth 73.5% under normal incidence.
The design example of a new type cross-coupled filter with fractional bandwidth of 1.375% at 2.4 GHz is described.
With no bias voltage applied, the filter operates at center frequency of 11.5 GHz with fractional bandwidth of 11.3%.
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