omt

Orthomode Transducers

11 40 GHz

GRANTE

GRANTEGRANTE Antenna Development and Production CorporationAntenna Development and Production Corporation


tel: +36 33 512 468

fax: +36 33 435 265

e-mail: [email protected] t 57., EsztergomKertvros, H2509, Hungary

post address: H2501 Esztergom, POB 84.

http://www.grante.hu

OMTV+H

vertical (V)

horizontal (H)

Orthomode transducers separate

horizontal and vertical polarizations

Introduction

Orthomode Transducers (OMTs) are 3-port microwave waveguide systems that split the input power into two parts (based on

polarization separation), consequently, allow the simultaneous operation of two outdoor radio units (ODUs). Since the

devices provide high inter-port isolation and low return loss, their application together with high performance antennas lead to

use of two independent transmission channels on a single antenna at the same time.

Application

Orthomode Transducars can be directly mounted on antennas that have circular waveguide connector. Interfaces are

available for several types of antennas from several manufacturers.

The interfaces on the ODU side are upon customer's request: direct mounting for any ODU type, coaxial cable connector,

standard waveguide flange, or any special request is available.

(2+0) system

outdoor units directly mounted

on the OMT+antenna system

Transmission capacity is doubled

using OMT

(2+0) Dual Polarized

System

ODUODU

ODUODU

V

H

f1

f1

OMT

GRANTE



tel: +36 33 512 468

fax: +36 33 435 265

[email protected] t 57., EsztergomKertvros, H2509, Hungary

post address: H2501 Esztergom, POB 84. www.grante.hu

Upon Customers Request




Orthomode Transducer Specification

17.70019.700 GHz 21.20023.600 GHz 24.50026.500 GHz14.20015.350 GHz

37.00039.500 GHz31.00033.400 GHz27.50029.500 GHz

12.75013.250 GHz10.70011.700 GHz

18 GHz 23 GHz 26 GHz15 GHz

38 GHz32 GHz28 GHz

13 GHz11 GHz

0.6 dB 0.6 dB 0.8 dB0.6 dB

1.0 dB1.0 dB1.0 dB

0.6 dB0.6 dB

40 dB 40 dB 38 dB40 dB

36 dB36 dB36 dB

40 dB40 dB

19.1 dB 19.1 dB 19.1 dB19.1 dB

19.1 dB19.1 dB19.1 dB

19.1 dB19.1 dB

Electrical Specification

Electrical Specification

Operating Frequency Band

Operating Frequency Band

Operating Frequency Range

Operating Frequency Range

Insertion Loss

Insertion Loss

Isolation inter-port

Isolation inter-port

Return Loss

Return Loss

1Interface antenna side

1Interface antenna side

2Interfaces ODU side

2Interfaces ODU side

3.4 kg3.4 kg 3.4 kg 3.4 kg 3.4 kg 3.4 kg

3.4 kg3.4 kg3.4 kg

Mechanical Specification

Mechanical Specification

3Net Weight

3Net Weight

Aluminium Aluminium

AluminiumAluminiumAluminium

AluminiumAluminium Aluminium Aluminium

Material

Material

Material

Material

OMT 130 2ODUOMT 110 2ODU OMT 150 2ODU OMT 180 2ODU OMT 230 2ODU OMT 260 2ODU

OMT 380 2ODUOMT 320 2ODUOMT 280 2ODU

GRANTE Orthomode Transducer

1Direct mounting is possible for several types of antennas

(from several manufacturers) with circular waveguide connector. 2

Coaxial cable connector, standard waveguide flange

or any ODU interface is available upon request.

3Approximate value (net weight depends on the required interfaces).

Ordering Information

Orthomode Transducers

GRANTE



tel: +36 33 512 468

fax: +36 33 435 265

e-mail: [email protected] t 57., EsztergomKertvros, H2509, Hungary

post address: H2501 Esztergom, POB 84.

http://www.grante.hu

Product Identification

Examples

1 2 3 4

1

2

3

4

Product Type

Frequency Band

Interface at ODU side

Interface at Antenna Side

Number and type of connecting interfaces.

Operational frequency in GHz, multiplied by 10.

If the operational frequency range is not commonly used,

the minimum and the maximum operational frequency is indicated here.

G

OMT OMT

380 180

2F 2NEC

G R

OMT

GRANTE Interface

Orthomode Transducer Orthomode Transducer

frequency band: 38 GHz frequency band: 18 GHz

two Nokia FlexiHopper ODU interfaces two NEC ODU interfaces (currently: NEO)

GRANTE antenna interface RFS antenna interface

with FlexiHopper fixing elements with NEC fixing elements

(e.g. SBX1-190B NEC)

frequency range: 37.000 39.500 GHz frequency range: 17.700 19.700 GHz

The OMT is directly mounted on GRANTE antenna.

The fixing elements of the OMT are the same as for the ODU.

Orthomode Transducer

etc. Any other interface is available upon request.

For example: Sagem antenna interface with NEC ODU interface.

OMT 380 2F G OMT 180 2NEC R

OMT 380 2F G

NEC

A

C(IP10)

DW

RAU2

RR1/RC1

V23

F

I

SW

SIAE

S4

etc.

NEC Pasolink Interface (for most recent and/or most popular NEC ODU)

Alcatel Interface

Ceragon IP10 Interface

DragonWave Horizon Interface

Ericsson Mini-Link Interface (RAU12 = RAU1&RAU2)

Remec RR1/RC1 Interface (Huawei, Sagem)

Please note that this field requires further specification in some cases (e.g. at lower frequencies).

Flange material (aluminium or brass) has to be specified.

NEC Pasolink Interface (V23 = V2&V3)

Nokia Flexihopper Interface

Intracom Intralink Interface

ISKRA (SparkWave) Interface

SIAE Interface

Siemens S4 Interface

Standard Waveguide Flange (according to IEC 60154-2)

Any other interface is available upon request.

Oldal 1Oldal 2Oldal 3

omt

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