Title :
Design of a 2.4 GHz CMOS frequency-hopped RF transmitter IC
Author :
Kosunen, Marko ; Vankka, Jouko ; Waltari, Mikko ; Sumanen, Lauri ; Koli, Kimmo ; Halonen, Kari
Author_Institution :
Electron. Circuit Design Lab., Helsinki Univ. of Technol., Espoo, Finland
fDate :
31 May-3 Jun 1998
Abstract :
A 2.4 GHz frequency-hopped RF transmitter IC has been designed and implemented in a 0.5 μm CMOS. This frequency hopped spread spectrum (FH/SS) transmitter is intended for use in a wide variety of indoor/outdoor portable wireless applications in the 2.4-2.4835 GHz ISM frequency band. The transmitter is capable of frequency and phase modulation. The key elements in the transmitter are: a quadrature direct digital synthesizer, digital-to-analog converters, low-pass filters, upconversion mixers and 90° phase splitter
Keywords :
CMOS integrated circuits; direct digital synthesis; frequency hop communication; frequency modulation; indoor radio; land mobile radio; phase modulation; radio transmitters; spread spectrum communication; 0.5 micron; 2.4 to 2.4835 GHz; CMOS; ISM frequency band; digital-to-analog converters; frequency modulation; frequency-hopped RF transmitter IC; indoor radio; low-pass filters; phase modulation; phase splitter; portable wireless applications; quadrature direct digital synthesizer; spread spectrum transmitter; upconversion mixers; CMOS integrated circuits; Digital filters; Digital-analog conversion; Low pass filters; Phase modulation; Radio frequency; Radiofrequency integrated circuits; Spread spectrum communication; Synthesizers; Transmitters;
Conference_Titel :
Circuits and Systems, 1998. ISCAS '98. Proceedings of the 1998 IEEE International Symposium on
Conference_Location :
Monterey, CA
Print_ISBN :
0-7803-4455-3
DOI :
10.1109/ISCAS.1998.698891
