Title :
Transverters for TDD and FDD ISM 2.4GHZ Radio Systems
Author :
Gryglewski, Daniel ; Owski, Dawid Roso ; Wojtasiak, Wojciech
Author_Institution :
Warsaw Univ. of Technol., Warsaw
Abstract :
The paper describes development of a technique and equipment to convert signals from TDD or FDD radio systems operating over popular ISM 2.4 GHz-band up to the less crowded, licensed 3.5GHz or 4.4GHz bands. The technique of bands conversion consists in a connection to the existing infrastructures RF up/down converter modules (transverter) with T/R switches or duplexer for TDD or FDD systems, respectively. Currently, the 3.5GHz FDD transverters cooperate in 17 locations with the IRT2000 digital radio access system used by El-net NETIA group and 4.4GHz TDD transverters work together with 802.11b WLAN AP utilized by Military Communication Institute.
Keywords :
UHF frequency convertors; frequency division multiplexing; radio access networks; time division multiplexing; wireless LAN; 802.11b WLAN AP; El-net NETIA group; FDD transverters; IRT2000 digital radio access system; ISM radio systems; Military Communication Institute; RF up/down converter module; T/R switches; TDD transverters; band conversion; duplexer; frequency 2.4 GHz; frequency 3.5 GHz; frequency 4.4 GHz; Band pass filters; Costs; Frequency conversion; Image converters; Local oscillators; Power generation; Radio frequency; Switches; Voltage-controlled oscillators; Wireless LAN;
Conference_Titel :
Microwaves, Radar & Wireless Communications, 2006. MIKON 2006. International Conference on
Conference_Location :
Krakow
Print_ISBN :
978-83-906662-7-3
DOI :
10.1109/MIKON.2006.4345257
