Abstract:This letter presents an IEEE 802.15.4a/4z-compliant integrated impulse radio ultrawideband (IR-UWB) coherent transmitter that supports all channels in Band 2 from 6.5 to 10 GHz. A wideband phase-locked loop (PLL) with dual LC quadrature voltage-controlled oscillators (QVCOs) is implemented that covers more than 5-GHz frequency range. The PLL features a phase noise of −99.8 dBc/Hz at 1-MHz frequency offset and an rms jitter of 2.3 ps, which ensures reliable coherent operation. The quadrature clocks also make ea… Show more
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