Title :
A PPM Gaussian monocycle transmitter for ultra-wideband communications
Author :
Bagga, Sumir ; Serdijn, Wouter A. ; Long, John R.
Author_Institution :
Electron. Res. Lab., Delft Univ. of Technol., Netherlands
Abstract :
A Gaussian pulse generator incorporating a pulse position modulator for use in an impulse radio ultrawideband system is described. The pulse generator is preceded by a programmable pulse position modulator and comprises a cascade of complex first-order systems, which, in turn, are made up of differential pairs employing partial positive feedback. The resulting PPM Gaussian pulse generator is designed in IBM 0.18 μm Bi-CMOS IC technology. Simulations predict the correct operation of the circuit for supply voltages of 1.8 V and a power consumption of 30 mW. The output monocycle indeed approximates a Gaussian monocycle, having a pulse duration of about 250 ps. Proper modulation of the pulse in time is confirmed.
Keywords :
BiCMOS analogue integrated circuits; feedback; integrated circuit design; pulse generators; pulse position modulation; radio transmitters; 0.18 micron; 1.8 V; 30 mW; Bi-CMOS IC technology; Gaussian pulse generator; PPM Gaussian monocycle transmitter; analog integrated circuits; complex first-order systems; differential pairs; impulse radio ultrawideband system; partial positive feedback; power consumption; programmable pulse position modulator; ultra-wideband communications; Circuit simulation; Energy consumption; Feedback; Modulation coding; Predictive models; Pulse generation; Pulse modulation; Radio transmitters; Ultra wideband technology; Voltage;
Conference_Titel :
Ultra Wideband Systems, 2004. Joint with Conference on Ultrawideband Systems and Technologies. Joint UWBST & IWUWBS. 2004 International Workshop on
Print_ISBN :
0-7803-8373-7
DOI :
10.1109/UWBST.2004.1320950
