Advantech K6T, C3956T User Manual

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A-Line Series 6m ANTENNA

Overview

Advantech Wireless A-Line Series antennas are designed and manufactured in batches with 6-meter Dual-shaped Compact Cassegrain all aluminum reflector antenna for VSAT applications in both C band (Model C3956T) and Ku band (Model K6T).

The A-Line Series C3956T and K6T models adopt a precision-formed reflector mounted on an Az over El pedestal providing necessary stiffness and pointing accuracy required in C and Ku band operation. It is provided with a feed with corrugated horn and OMT and is of optimized R.F. specifications, operates in circular or linear polarization selectable manually and meets any requirements of customers for particular applications.

The A-Line Series C3956T and K6T antennas meet the regulations of CCIR 580-4 and have been approved by ASIASAT, INTELSAT, CHINASAT, etc.

A-Line Series 6m ANTENNA

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Antenna Specifications

R.F Specifications

2 port feed

C-Band

Ku-Band

Receive

Transmit

Receive

Transmit

Frequency in GHz*

3.625-4.200*

5.850-6.425

10.95-12.75GHz

14.0-14.5GHz

Gain

46.6+20lg[f(GHz)/]

49.7+20lg[f(GHz)/6]

51.2

52.6

Antenna Noise Temp.

10°Elevation

40K

65K

20°Elevation

30K

50K

40°Elevation

22K

41K

Typical G/T at 20°El

28.4dB/k at 20 El with 35k LNA

34.8dB/k at 20 El with 70k LNA

Sidelobe Pattern

First sidelobe level ≤-14dB Beyond first sidelobe meet IESS(Intelsat) or CCIR 580-5 Recommendation

Cross Pol. Discrimination

35dB (On axis) 30dB (within 1 dB Beamwidth)

VSWR

1.3:1

-3 dB beamwidth

at 4GHz/6GHz

at 12GHz/14GHz

.81º

0.54º

0.27º

0.23º

Axial Ratio (CP only)

1.5

.75

Feed Insertion or Ohmic Loss

0.20dB

0.35dB

Power Handling Capability

3 Kw cw

1 Kw cw

Port to Port Isolation

Feed Interfaces

CPR-229F

CPR-137F

WR75

NOTE: All values are at the rear feed output flange. * Antennas operational in C band 3.4--3.7GHz/ 6.424--6.725GHz or 3.4-- 4.2GHz /5.85--6.65GHz are available with optional for customer.

R.F Specifications

4 Port Linear/ Circular Pol.

C-Band

Ku-Band

Receive

Transmit

Receive

Transmit

Frequency in GHz*

3.625-4.2

5.850-6.425

10.95-12.75

14.0-14.5

Gain

46.5

49.6

55.3

56.4

Antenna Noise Temp.

10°Elevation

45K

65K

20°Elevation

35K

50K

40°Elevation

27K

41K

Typical G/T at 20°El

28.1 dB/K with 35K LNA

34.5 dB/k with 70K LNA

Sidelobe Pattern

First sidelobe level ≤-14dB Beyond first sidelobe meet IESS(Intelsat) or CCIR 580-5 Recommendation

Cross Pol. Discrimination

35dB (On axis) 30dB (within 1 dB Beamwidth)

VSWR

1.3:1 (LP)

1.25:1 (CP)

1.3:1 (LP)

1.25:1 (CP)

1.3:1

-3 dB beamwidth

1.29º

0.83º

0.44º

0.37º

Axial Ratio (CP only)

1.0dB

Feed Insertion or Ohmic Loss

0.25dB

0.20dB

0.50dB

Power Handling Capability

3 Kw

1 Kw

Port to Port Isolation

Tx/Rx

85dB

Rx/Rx, Tx/Tx

20dB (CP) 30dB(LP)

Feed Interfaces

CPR-229F

CPR-137F

WR75

NOTE: All values are at the rear feed output flange. * The frequency range are Rx: 3.4-3.7GHz/Tx: 6.424-6.725GHz or Rx:3.4- 4.2GHz /Tx:5.85-6.650GHz optional. ** The other operational frequency bands of VSAT antennas can be of 10.95- 11.7GHz or 11.7-12.2GHz even extended as 10.95-12.75GHz. They are available with an option for customers when order.

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