790718 datasheet(80/152 Pages) KATHREIN

80 / 152 page

UHF Transmitting Antenna

Polarization

470–862 MHz

•Superturnstile antenna in a self-supporting fiberglass cylinder with 1.60 m diameter.

* Attenuation of the internal cabling and the gain-decrease in case of null fill in

the vertical radiation pattern are not considered.

Approximate values for gain decrease:

cable attenuation: 0.2 – 0.5 dB

null fill:

0.3 – 1.0 dB

Gain figures are valid for the direction of maximum radiation (see diagrams on

following page).

** Only according to antenna aperture H without base flange and top.

Input

Connectors according to IEC, EIA or DIN.

Max. power

According to customer’s requirements,

6 kW max. per bay.

Frequency

470 – 862 MHz

VSWR, typically

< 1.05 in operating channels after tuning

or < 1.15 in band.

Impedance

50 Ω

Polarization

Horizontal

Vertical radiation pattern

Null fill and beam tilt upon request.

Horizontal radiation pattern

Omnidirectional, circularity < ±1.5 dB

Half antenna splitting

Upon request, the antenna can be divided

into two halves (for emergency operation and

maintenance).

The two halves are connected by a

2-way power splitter or patch panel.

Internal connections

The radiating elements are fed with

coaxial connecting cables and hybrid couplers.

Connectors according to IEC, EIA or DIN are used

throughout the system,

allowing easy assembly and maintenance.

Structure

Superturnstile antenna in self-supporting

fiberglass-cylinder.

Up to 16 bays may be stacked.

Mounting

On top of existing structure by means of a flange.

Ice protection

Fiberglass-cylinder (= supporting structure)

Grounding

Via mounting parts resp. via 4 grounding ropes

at the exterior cylinder-surface.

No.

bays

Gain*

(at mid-band)

dBd

times

Weight**

Antenna

height H

Windload**

(v = 160 km/h)

7.7

5.9

350

1.9

2.5

10.7

11.8

700

3.8

5.0

13.7

23.4

1400

7.6

10.0

15.5

35.5

2200

11.4

15.0

16.7

46.8

3050

15.2

20.0

790718 数据表(PDF) 80 Page - KATHREIN Solutions GmbH

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