Title :
Tower-top low-noise amplifiers for wireless communications
Author :
Schwengler, Thomas
Author_Institution :
US West Adv. Technol., Boulder, CO, USA
Abstract :
Noise contributions at the base station of a personal communication service (PCS) are analyzed. Cascade calculations are made and the influence of each device is studied. In particular, tower-top low-noise amplifiers are introduced to improve system noise figure; discussion on the influence of their noise characteristics and optimal gains is presented. Our findings are compared with experimental results from bench testing and field-testing. Subsequently, a short study on antenna noise is conducted at 2 GHz. Various noise sources are identified and approximately quantified. Finally, recommendations follow concerning optimal use of tower-top low-noise amplifiers
Keywords :
UHF amplifiers; UHF antennas; broadcast antennas; personal communication networks; poles and towers; radiofrequency interference; 2 GHz; antenna noise; base station; cascade calculations; noise characteristics; noise sources; personal communication service; system noise figure; tower-top low-noise amplifiers; wireless communications; Base stations; Cables; Filters; Low-noise amplifiers; Multiaccess communication; Noise figure; Noise level; Personal communication networks; Temperature; Wireless communication;
Conference_Titel :
Aerospace Conference, 1998 IEEE
Conference_Location :
Snowmass at Aspen, CO
Print_ISBN :
0-7803-4311-5
DOI :
10.1109/AERO.1998.685825
