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Machine translation
1. (WO1981001916) INPUT COUPLING DEVICE FOR A RECEIVER
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1981/001916    International Application No.:    PCT/NL1980/000041
Publication Date: 09.07.1981 International Filing Date: 29.12.1980
IPC:
H01Q 23/00 (2006.01), H03J 3/18 (2006.01), H04B 1/18 (2006.01)
Applicants:
Inventors:
Priority Data:
2952793 31.12.1979 DE
Title (EN) INPUT COUPLING DEVICE FOR A RECEIVER
(FR) DISPOSITIF DE COUPLAGE D"ENTREE D"UN RECEPTEUR
Abstract: front page image
(EN)The input coupling device, tunable, for a receiver in a receiving station, allows an operation with active or passive antennas and comprises an amplifying tripole network (1). The connection source (5) of the tripole network is connected to a resonating network (2), which is itself connected at a high frequency to the rest of the input coupling device (3), so that the input impedence (10) of the resonating network acts as a counter feedback impedence of the tripole network (1). The impedence of the tripole network (1) has, at the operating frequency of the receiver (29), about a minimum of its apparent resistance which increases with the increase of the deviation between the frequency and the operating frequency.
(FR)Le dispositif de couplage d"entree, accordable, pour un recepteur dans une installation de reception, permet un fonctionnement avec des antennes actives ou passives et comporte un reseau tripole (1) amplificateur. La connexion source (5) du reseau tripole est reliee a un reseau resonnant (2), lui-meme relie a haute frequence au reste du dispositif de couplage d"entree (3), de sorte que l"impedance d"entree (10) du reseau resonnant agit comme impedance de contre-reaction du reseau tripole (1). L"impedance du reseau tripole (1) presente, a la frequence de fonctionnement du recepteur (29), a peu pres un minimum de sa resistance apparente qui croit avec l"augmentation de l"ecart entre la frequence et la frequence de fonctionnement.
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)