US 4,908,587 AGranted

Antenna selector

AssigneeAsea Brown Boveri AG

InventorStojan Davcev

Life of this patent

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Abstract

In an antenna selector in the form of a matrix, in which connections are established as desired between first feeder lines (F11, . . . , F13) on a first level and second feeder line (F21, . . . , F24) on a second level, the number of switches (S11, . . . , S34) can be reduced or the number of selectable antennae can be increased, in that at least one third level with third feeder lines (F31, . . . , F34) is introduced and each switch (S11, . . . , S34) is extended by an additional switching level and switching position.

Claims7

Dependent claims

An antenna selector in the form of a switching matrix for the optional connection of a plurality of transmitters to a plurality of antennae, in which antenna selector

(a) on a first level (E1) a plurality of first feeder lines (F11, . . . , F13) are arranged parallel to one another, one transmitter connection (T1, . . . , T4) being associated with each of the first feeder lines (F11, ..., F13);
(b) on a second level (E2) parallel to the first level (E1) a plurality of second feeder lines (F21, ... , F24), are arranged parallel to one another and at right angles to the first feeder lines (F11, . . . , F13), one first antenna connection (A11, . . . , A81, Am1) being associated with each of the second feeder lines (F21, ..., F24);
and
(c) there is provided at the intersections of the first and second feeder lines (F11, ..., F13 and F21, ..., F24 respectively) in each case a switch (S11, ..., S34) which has a corresponding switching level (SE1, SE2) on each of the levels (E1, E2), and which in a first switching position connects through the associated first feeder line on the first level (E1) and the associated second feeder line on the second level (E2), and in a second switching position interrupts the associated first and second feeder line on the respective level and mutually connects them from one level to the other;
wherein
(e) there is arranged on a third level (E3) parallel to the first two levels (E1, E2) a plurality of third feeder lines (F31, ..., F34) parallel to one another and at right angles to the first feeder lines (F11, . . ., F13), a second antenna connection (A12, . . ., A82, Am2) being associated with each of the third feeder lines (F31, . . ., F34);
(f) the intersections of the first and third feeder lines (F11, . . ., F13 and F31, . . ., F34 respectively) coincide with corresponding intersections of the first and second feeder lines (F11, . . ., F13 and F21, ..., F24 respectively);
and
(g) each switch has a switching level (SE3) corresponding to the third level (E3), and in the first switching position also connects through the associated third feeder line on the third level (E3), in the second switching position also interrupts the associated third feeder line on the third level (E3), and in a third switching position interrupts all three associated feeder lines on their respective levels and only mutually connects the associated first and third feeder lines from one level to the other.

6 more elements

Dependencies are inferred from the claim text.

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Abstract

An antenna selector in the form of a switching matrix for the optional connection of a plurality of transmitters to a plurality of antennae, in which antenna selector

(a) on a first level (E1) a plurality of first feeder lines (F11, . . . , F13) are arranged parallel to one another, one transmitter connection (T1, . . . , T4) being associated with each of the first feeder lines (F11, ..., F13);
(b) on a second level (E2) parallel to the first level (E1) a plurality of second feeder lines (F21, ... , F24), are arranged parallel to one another and at right angles to the first feeder lines (F11, . . . , F13), one first antenna connection (A11, . . . , A81, Am1) being associated with each of the second feeder lines (F21, ..., F24);
and
(c) there is provided at the intersections of the first and second feeder lines (F11, ..., F13 and F21, ..., F24 respectively) in each case a switch (S11, ..., S34) which has a corresponding switching level (SE1, SE2) on each of the levels (E1, E2), and which in a first switching position connects through the associated first feeder line on the first level (E1) and the associated second feeder line on the second level (E2), and in a second switching position interrupts the associated first and second feeder line on the respective level and mutually connects them from one level to the other;
wherein
(e) there is arranged on a third level (E3) parallel to the first two levels (E1, E2) a plurality of third feeder lines (F31, ..., F34) parallel to one another and at right angles to the first feeder lines (F11, . . ., F13), a second antenna connection (A12, . . ., A82, Am2) being associated with each of the third feeder lines (F31, . . ., F34);
(f) the intersections of the first and third feeder lines (F11, . . ., F13 and F31, . . ., F34 respectively) coincide with corresponding intersections of the first and second feeder lines (F11, . . ., F13 and F21, ..., F24 respectively);
and
(g) each switch has a switching level (SE3) corresponding to the third level (E3), and in the first switching position also connects through the associated third feeder line on the third level (E3), in the second switching position also interrupts the associated third feeder line on the third level (E3), and in a third switching position interrupts all three associated feeder lines on their respective levels and only mutually connects the associated first and third feeder lines from one level to the other.

6 more elements