730 092 Page 1 of 1

KATHREIN-Werke KG . Anton-Kathrein-Straße 1 – 3 . P.O. Box 10 04 44 . 83004 Rosenheim . Germany . Phone +49 8031 184-0 . Fax +49 8031 184-991

Internet: http://www.kathrein.de

936.

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730 092

12

34

Hybrid Ring Junction (180° Hybrid)380 – 430 MHzTETRA, TETRAPOL

The hybrid ring junction can be used:– as a power splitter with a ratio of 1:1,– for the decoupled combining of two transmitters

with arbitrarily low frequency spacing (at 3 dBloss),

– for the decoupled combining of two receivers witharbitrarily low frequency spacing,

– for the decoupled combining of two transmitter/receiver units, whose integrated duplexers arewithin the same frequency range,

– as component to form combiners.

Description:The hybrid ring junction has four ports, two of whichare decoupled from each other. For example effec-tive power entering into port 1 is distributed intoports 2 and 4, port 3 is decoupled and withoutpower if ports 2 and 4 are ideally matched. In prac-tice an absorber of suitable power at port 3 is to beplanned for according to the mismatch of ports 2 and 4.Decoupled combining can be made via port 1 and 3or 2 and 4.

Frequency range 380 – 430 MHzAttenuation 1↔2 bzw. 1↔4 3 ±0.4 dBAttenuation 1↔3 bzw. 2↔4 See diagramsVSWR* < 1.2Impedance 50 ΩInput power < 100 W per InputConnector N femaleMaterial Housing: AluminumInstallation With 2 screws (M4)Weight 500 gPacking size 230 mm x 35 mm x 130 mmDimensions (w x h x d) 225 mm x 32 mm x 117 mm

(with connectors)

Note: VSWR and attenuation are measured when the remaining ports are terminated with 50-Ω loads.

Type No. 730 092

Technical Data

1↔4

1↔2

2.5

3.0

3.5

Frequency/MHz380 430

Typical attenuation 1↔2 and 1↔4vs frequency

Atte

nuat

ion

1↔4

/ dB

Atte

nuat

ion

1↔2

/ dB

20

Atte

nuat

ion

2↔4

/ dB

Atte

nuat

ion

1↔3

/ dB

30

40

Attenuation 1↔3 or 2↔4 vs frequency

Frequency/MHz

370

typical attenuationguaranteed values

390 410 450380 430

The remaining ports are terminated with 50 Ω loads.