Title :
HF 125 W half-loop antennas in ALE and ECCM for land mobile, navy and helicopter use
Author :
Gouin, J.P. ; Lafargue, D. ; Le Guen, H.
Author_Institution :
Chelton Antennas, France
Abstract :
This paper describes a small sized mobile HF half-loop antenna and its integrated agile coupler designed to work with a 125 W transceiver in automatic link establishment (ALE) and/or frequency hopping (FH). This equipment is a 50 Ω antenna which comprises a digital tuning circuit for fast switching in transmission-reception (traffic mode), and an active wide-band circuit for continuous reception (scanning mode). The half-loop concept can apply to small vehicles, shelters, ships, helicopters and airplanes, and can be extended to base stations and large ships with a full loop configuration using the same tuning circuits
Keywords :
HF antennas; active networks; aircraft antennas; circuit tuning; digital circuits; electronic countermeasures; helicopters; land mobile radio; loop antennas; military communication; military equipment; mobile antennas; radio links; scanning antennas; ships; 125 W; 50 ohm; ALE; ECCM; FH; HF half-loop antennas; active wide-band circuit; agile coupler; airplanes; automatic link establishment; base stations; continuous reception; digital tuning circuit; fast switching; frequency hopping; full loop configuration; helicopter; helicopters; land mobile radio; mobile HF half-loop antenna; navy; scanning mode; shelters; ships; small sized mobile antenna; small vehicles; traffic mode; transceiver; transmission-reception;
Conference_Titel :
HF Radio Systems and Techniques, 2000. Eighth International Conference on (IEE Conf. Publ. No. 474)
Conference_Location :
Guildford
Print_ISBN :
0-85296-727-6
DOI :
10.1049/cp:20000147
