High-band ultra-wideband transmitter for IEEE 802.15.4a standard

This paper presents a monolithically integrated ultra wideband direct up conversion transmitter designed in accordance with IEEE 802.15.4a standard. The transmitter operates in the higher UWB band in eight communication channels. It supports the burst position and the binary phase-shift keying modulation schemes and provides a modulated impulse sequence with a pulse repetition frequency up to 499.2 MHz. The transmitter is fabricated in a 0.25 μm BiCMOS technology and occupies a silicon area of 1.75×1.55 mm².