A CMOS Ultra-Wideband Impulse Radio Transceiver for Interchip Wireless Communications

This paper presents a CMOS Ultra-Wideband impulse radio transceiver used for interchip wireless communications. The transmitter employed Time Hoping Pulse Position Modulation (TH-PPM) scheme is presented for eight users' access simultaneously with 2.5ns hoping time allocated in a frame time of 20ns. A fifth derivative Gaussian pulse generator is used to regulate the pulse shape as well as the pulse spectrum. The pulse train containing data information can be perfectly recovered at the delay time of 780ps with respect to the transmitted pulse train. The transceiver is designed and implemented with TSMC 1.8V 0.18μm CMOS mixed signal process. The proposed transmitter and receiver are fabricated individually. The power dissipations for transmitter and receiver are 23mW and 108mW, respectively.