DES0033352MA - - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

Date of registration: May 7, 1953 Advertised on December 29, 1955

GERMAN PATENT OFFICE

For emission and reception of electromagnetic Shafts are 'often so-called funnel s h ahler used, which is the case with the previously known Construction of a sinusoidal distribution of the field strength in the plane of the magnetic field lines exhibit. The disadvantage of the known funnel emitters is that their half-width of the Radiation diagram is larger and the gain is smaller than with an approximately even distribution the field strength across the funnel cross-section. The essential properties of directional antennas can namely through the so-called half width, which specifies the angular degree at which the radiant energy drops to half of the maximum, and indicated by the gain will. The gain is defined by the ratio of the greatest radiation density to the radiation density that would exist if the same power in all directions would be broadcast evenly.

There are funnel-shaped Strähler arrangements known through dividing walls perpendicular to the electrical field strength into several funnel canals are divided. These partitions extend up to the through the outer wall! the Strähler arrangement formed funnel contour. The electromagnetic waves thus emerge from the individual Funnel channels directly into the free space. The consequences of this are undesirable Secondary radiation besides the main radiation direction.

509 626/113

Claims (5)

S 33352 VIII a / 21 a '/.πι' Improvement of the radiation properties of such funnel raiders, therefore, additional tunnels have been inserted into certain channels of the funnel radiator, which allow influencing of the funnel propagating in each channel of the funnel. These additional substances are great, however, that (it looks like an antenna orderly considerably. In other words, the funnel-shaped radiator arrangement, which is divided into several radiator channels by electrical partitions, and is brilliant for receiving electromagnetic waves! the uniform and the sinusoidal is, achieved by the fact that the electrical partitions do not extend as far as the tricolor corridor formed by the exterior and the radiator arrangement The formation of the radiator arrangement after the radiation results in a more favorable distribution (Ut field strength above the funnel opening than well-known arrangements), namely by virtue of the fact that the elements in the individual funnel sections etc. running well Before leaving the common funnel opening, phases I meet and draw a field distribution on the () rU · of the common funnel opening which is necessary for a favorable radiation pattern. As a rule, several funnel beams can be arranged next to each other as radiator elements so that their neighboring surfaces penetrate each other and that! these end approximately at the common cutting line. A common dividing wall running in the direction of the radiation can be continued from the edge of the mutual penetration line (Ut limit / tmgsfläehen ah. At the radiator opening common to all radiating elements, a radiator extension can be attached, the walls of which are particularly parallel to the main raid By designing the radiator arrangements according to (U'i · F. Haseiilage can be adjusted so that an in (U'r oil intimately the entire Strahleroffnuiiii vorliaiuU'iK · level \\ '<- lk-nfront can be achieved StralikTanordnuu ^ 'an electromagnetic lens to be attached <' ii. The arrangement after the lirfiiulun ^ is in the following to Nand von Detailed examples are given in the explanation. 6 <> Ι '"ίμ. Ι ζ <ί' ^ 1 a funnel emitter, which is fed through the waveguide 1. In the space enclosed by the funnel, the so-called Tren.nhleche 2 are in the form of ji," mieren, wires or sheets drawn in that do not extend to the hopper opening itself. The waves running in the individual funnel sections formed in this way meet each other in phase before leaving the common funnel opening and produce the desired field distribution at the location of the funnel opening. In Fig. 2, a radiator arrangement consisting of two juxtaposed funnel radiators is shown. The opposing walls of the funnels 3 penetrate one another at point 4 and end in a common line of intersection, while the other lying boundary surfaces of the funnels 3 are continued in their normal course. Here, too, is achieved (Let the waves emerging from the individual funnels still cover a common path in the common funnel opening. The arrangement according to FIG a common extension 4 short overall length. The walls of this extension run parallel to the 1st raid direction of the radiator arrangement. PATKN 'J' ANSPR ß CHE: 1. Funnel-shaped radiator arrangement divided into several Stralilerkaiiäle by electrical partitions for the emission and · for the [reception of electromagnetic waves, characterized in that that the electrical partitions do not extend up to the (through the outer wall of the Funnel construction formed by the radiator assembly extend. 2. Emitter arrangement according to claim 1, characterized through several juxtaposed funnels with their adjacent boundary surfaces penetrate each other and end roughly at the common line of intersection. 3. Strahleranordmuig according to claim 2, characterized characterized in that of the OrIc of the mutual penetration of the boundary surfaces a common partition is continued. 4. Strahleranordming according to claim 1, characterized characterized in that the electrical partitions are approximately parallel to the direction of the electrical field strength selling Wires, (litter or sheet metal are formed. 5. Strahleranordmuig according to one of the preceding claims, characterized in that that at the common opening of the Strahleranordming a funnel extension short length is attached, the walls of which in particular run parallel to the main beam direction. iao Referenced Documents: British Patent No. 681,780. 1 sheet of drawings 509 626/113 12.55