Title :
A broadband high data rate constant envelope phase shift modulator in a 0.13 μm logic CMOS process
Author :
Yang, Xiuge ; Lin, Jenshan
Author_Institution :
Florida Univ., Gainesville, FL, USA
Abstract :
This paper presents a low-power constant envelope phase shift modulator. The modulator discretely changes the phase of a constant envelope carrier according to the input digital data bits. A test chip was fabricated in a 0.13μm logic CMOS process. Experiment results show that the modulator consumes 2 mA, has an operating frequency range between 1.5 GHz and 3.3 GHz with EVMs below 4%, and can support a data rate up to 225 Mbps with EVMs lower than 5.5%. The modulator can be designed to generate different modulation schemes by digitally controlling the phase and/or amplitude of the carrier, and therefore potentially can be used in software defined radios.
Keywords :
CMOS logic circuits; UHF integrated circuits; broadband networks; field effect MMIC; modulators; phase shifters; software radio; 1.5 to 3.3 GHz; 225 Mbit/s; broadband high data rate constant envelope; carrier amplitude; digital control; logic CMOS process; low-power constant envelope phase shift modulator; software defined radios; test chip fabrication; Amplitude modulation; CMOS logic circuits; CMOS process; Digital control; Digital modulation; Frequency; Logic testing; Phase modulation; Radio control; Software radio;
Conference_Titel :
Radio and Wireless Symposium, 2006 IEEE
Print_ISBN :
0-7803-9412-7
DOI :
10.1109/RWS.2006.1615221
