Communications: radio wave antennas – Antennas – Wave guide type
Patent
1997-06-13
1999-03-09
Wong, Don
Communications: radio wave antennas
Antennas
Wave guide type
343786, 333 21A, H01Q 1300
Patent
active
058806989
ABSTRACT:
An arrangement is provided for generating and transmitting microwaves, in particular for a filling level measuring device, which arrangement generates a microwave mode which has a radiation characteristic with a pronounced forward lobe and which arrangement can be used in a large frequency range. It comprises a microwave generator (1), an antenna (2) of circular cross section and a coaxial line (3), which leads from the microwave generator (1) to the antenna (2) and has an inner conductor (31) and an outer conductor (32), and has the feature that on a rear wall (21) of the antenna (2) there is arranged a transmitting wire (5), which runs in the interior of the antenna (2), the first end (51) of which is connected to the inner conductor (31) of the coaxial conductor (3), the second end (52) of which is connected to the rear wall (21) of the antenna (2) and which has a straight portion (53) and legs (54, 55) adjoining the latter.
REFERENCES:
patent: 5245353 (1993-09-01), Gould
patent: 5331332 (1994-07-01), West et al.
Ragan, George L. Microwave Transmission Circuits, 1948, pp. 314-361.
Panzke, Rolf. Beruhrungslose kontinuierliche Fullstandsmessung mit Mikrowellen, 1990, pp. 181-184.
Endress & Hauser GmbH & Co.
Nguyen Hoang
Wong Don
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