Funktionsweise der Toroidal Antenne

 

 

TECHNOLOGY-TOROIDAL'S DUAL REFLECTOR

Sub-reflectors offer flexibility of design for reflecting telescopes. The classical arrangement introduced by N. Cassegrain of France uses a sub-reflector of hyperbolic shape which surrounds the prime focus of the main parabolic reflector. There are some variations and Gregorian reflector has an ellipsoid as a sub-reflector.  

 

 

 

 

 

 

Table 1. Double Reflector Antennas (P:Parabola, H:Hyperboloid, E:Ellipsoid)

WAVEFRONTIER's TOROIDAL dual reflector antenna is similar to Gregorian reflector in shape, but the basic formula differs from it. The sub-reflector of TOROIDAL antenna is from a virtual toroid, but the main reflector is analogous to an ellipsoid. There is no parabolic formula. This system has a convex - concave sub-reflector. This sub-reflector is convex in one plane and concave in orthogonal plane. The complete shape of them are obtained through elaborate mathematical and physical calculation. You can say it's a NEW TOROIDAL multi-sat antenna.

 

 

 

MODEL

TOROIDAL 55

TOROIDAL 90

Main Reflector

Height

53.2 cm (20.9 in.)

96.7 cm (38.1 in.)

Width

66.8 cm (26.3 in.)

108.6 cm (42.8 in.)

Sub Reflector

Height

25.3 cm (10.0 in.)

36.1 cm (14.2 in.)

Width

49.7 cm (19.6 in.)

83.6 cm (32.9 in.)

Net Weight

6.7 kg (14.7 lbs)

14.1 kg (31.0 lbs)

Operating Frequency

10.70 - 12.75 GHz

10.70 - 12.75 GHz

Polarization

Linear & Circular

Linear & Circular

Multi Satellite Azimuth Range

30 degree

25 degree

Midband Gain @ 12.5 GHz

35.7 dB ( 0.3 dB)

39.65 dB ( 0.45 dB)

Recommended Satellite Spacing

4.5 degrees

4.5 degrees

Efficiency

70 ~ 82 %

65 ~ 80 %

Reflector Material

Galvanized Steel with Polyester Powder Coating

Galvanized Steel with Polyester Powder Coating

Mount Type

Elevation over Azimuth

Elevation over Azimuth

Operational Temperature

-30C to +60C (-22F to 140F)

-30C to +60C (-22F to 140F)

Relative Humidity

0 90 %

0 90 %

Windloading

Operational

80 km/h (50 mph)

80 km/h (50 mph)

Survival

200 km/h (125 mph)

200 km/h (125 mph)

LNB Installation

1 8 LNBs

1 12 LNBs

 

Montageanleitung fr Toroidal T 90  ( 5 MB  pdf-Datei)
Download mit rechter Mousetaste

 

Andere Antennen von WaveFrontier

 

    HEMISPHERE ANTENNA

 

Unique and creative Central symmetry Lens(CSL) antenna on a flat metal reflector.

The polystyrene used enables a high qualified military antenna to be universal.

Receives a dozen satellites in Ku-Band at the same time.

Compact, unobtrusive hemispherical antenna.

Advanced LNBF (Low Noise Block downconverter with integrated Feed) for high-quality signals.

 

 

 

 

 

 

 

    SPHERE ANTENNA

 

Unique and creative Central symmetry Lens(CSL) antenna on a flat metal reflector.

The polystyrene used enables a high qualified military antenna to be universal.

Receives a dozen satellites in Ku-Band at the same time.

Compact, unobtrusive hemispherical antenna.

Advanced LNBF (Low Noise Block downconverter with integrated Feed) for high-quality signals.

 

 

 

 

 

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Zuletzt gendert am: 06. Juli 2002