Français
11. Frequency bandwidth
11.1 General limitation
The total bandwidth of an active antenna depends on the bandwidth of its components:
radiating elements ;
modules ;
distributor/consumer.
Generally speaking, it is not very difficult to obtain 10 to 15% of total bandwidth. In addition to the mismatching of radiating elements and distributor components, the reduced efficiency and gain of module amplifiers contribute to a loss of antenna gain compared with its theoretical value of 4πS/ λ 2
The Ultimate Scientific and Technical Reference
This article is included in
Electronics
This offer includes:
Knowledge Base
Updated and enriched with articles validated by our scientific committees
Services
A set of exclusive tools to complement the resources
Practical Path
Operational and didactic, to guarantee the acquisition of transversal skills
Doc & Quiz
Interactive articles with quizzes, for constructive reading
Frequency bandwidth
Beam forming
Bibliography
Articles on antennas and active modules
Organizations
European Space Agency (ESA) http://www.esa.int
Centre National d'Études Spatiales (CNES) http://www.cnes.fr
ONERA http://www.onera.fr
TNO-FEL (Pays-Bas) (Physics...
Suppliers
(non-exhaustive list)
Companies developing technical solutions for active antennas for radar and space communications:
GTDAR (GIEE tri-national GB/F/All)
Thales http://www.thalesgroup.com
The Ultimate Scientific and Technical Reference
