1. Communication Satellite Payload
Product & Heritage
Version 2014 V1

2. Background
30 years’ experience in design, manufacturing, integration and test
More than 20 GEO payloads has been supplied. In- orbit operating time accumulates up to over years.
Frequency bands: UHF, L, S, C, Ku, Ka
Max. power per channel: 300W
Total RF power: 5000W
Max. number of antenna per sat.: 7
Design lifetime: 15 years
SinoSat-3
SinoSat-6
NigcomSat-1R

3. Technique & Benefits
Multi-bands, multi-channels, multi-antennas, high power and high gain payload
High reliability and long life system > 15 years
Anti-interference
Switchable channels between different beams
Steep roll-off antenna
Steerable antenna
On-Board auto-tracking
Mono-pulse tracking with 0.06 degree accuracy
On-Board processing
Frequency hopping, spread spectrum,
Circuit transfer, ATM, IP transfer, sub-band transfer
TDMA, FDMA, CDMA
Adaptive modulated rate: 2-300Mbps
Adaptive demodulated rate: 2-54Mbps
VeneSat-1
PakSat-1R
TKSAT-1

4. Heritage * International program Program Launch Freq. Band
Channels*Power (W)
DFH2 C
2 * 8
DFH-2A
4 * 10
DFH-3
18 * 8
6 * 16
ChinaSat-22
UHF
6 * 25
7 * 20
ChinaSat-20
8 * 20 Ku
4 * 55
ChinaSat-22A
1 * 20 Ka
2 * 60
Nigcomsat-1* L
2 * 62/45
4 * 60
14 * 150
8 * 70/50
Sinosat-3
10 * 50
Nigcomsat-1R*
8 * 70
Program
Launch
Freq. Band
Channels*Power (W)
Tianlian I
S/Ka
1 * 50
Ka/S
1 * 40 Ka
5 * 50/20
Venesat-1* C
14 * 60 Ku
12 * 120
2 * 50
Sinosat-6 S
1 * 120
24 * 80
8 * 150
ChinaSat-20A
2 * 20
6 * 55
Paksat-1R*
12 * 40
18 * 100
Zhongxing-1A
UHF
6 * 25
1 * 20
12 * 100
Zhongxing-2A
11 * 150/300
6 * 100
Zhongxing-11
26*84
19*150
TKsat-1*
2*60
22*100/4*120
2*100
* International program

5. Heritage SINOSAT-6 Configuration chiefly technique
Ku band, 8 * 150W
C band, 24 * 80W
All channels can be switched between two beams
S band, 1 * 120W
Can be switched to Ku band channel
4 antenna
Including 2 dual gridded antenna
chiefly technique
C band pre-distortion IMUX
13 channels C band OMUX
Dual grid antenna
Steep roll-off antenna
Launched in Sep. 2010

6. Heritage ZHONGXING-11 4 beams, 5 channels are switchable
Configuration
Ku band, 19 channels (150W/Channel)
4 beams, 5 channels are switchable
C band, 26 channels (84W/channel)
Standard/extended C band, dual polarization
5 antenna (including 1 Steerable antenna)
chiefly technique
C-serial Bus, TWTA with Dual EPC
Matrix command and telemetry (HLC/LLC)
Ku band dielectric resonator IMUX
Wideband feed (4 ports, C band)
16 channels C band OMUX
Launched in May 2013
Zhongxing-11

7. Typical Payload Performance
C band 36MHz channel
Frequency offset from center (MHz)
Flatness
(dBp-p)
±10.0
 0.6
±12.0
 1.0
±14.0
 1.2
±16.0
 2.0
±18.0
 2.4
Frequency offset from center (MHz)
Group delay (ns) ±0
 5.0
±8.0
 10.0
±12.0
 25.0
±16.0 45
±18.0
 88
Frequency offset from center (MHz)
Rejection
(dB)
±22.0MHz
±25.0MHz
±30.0MHz
-20
-30
-50

8. Typical Payload Performance
C band 54MHz channel
Frequency offset from center (MHz)
Flatness
(dBp-p)
±18.0
 1.0
±27.0
 2.4
Frequency offset from center (MHz)
Group delay (ns)
±18.0 30
±27.0 82
Frequency offset from center (MHz)
Rejection
(dB)
±32.0MHz
±37.5MHz
±45.5MHz
-20
-30
-50

9. Typical Payload Performance
Ku band 36MHz channel
Frequency offset from center (MHz)
Flatness
(dBp-p)
±12.0
 1.0
±18.0
 3.0
Frequency offset from center (MHz)
Group delay (ns) ±0
 3.0
±9.0
 10.0
±12.0
 25.0
±16.0 45
±18.0 95
Frequency offset from center (MHz)
Rejection
(dB)
±22.0MHz
±25.0MHz
±30.0MHz
-20
-30
-50

10. Typical Payload Performance
Ku band 54MHz channel
Frequency offset from center (MHz)
Flatness
(dBp-p)
±18.0
 1.0
±27.0
 2.8
Frequency offset from center (MHz)
Group delay (ns) ±0
 3.0
±13.0
 10.0
±18.0
 25.0
±24.0
 45
±27.0
 80
Frequency offset from center (MHz)
Rejection
(dB)
±33.0MHz
±38.0MHz
±45.5MHz
-20
-30
-50

11. Multi-Beam Payload
Multi narrow beams coverage to improve EIRP & G/T performance
Frequency reused with times to increase useful bandwidth and communication capacity
Frequency isolation with beam isolation
Program under development: ChinaSat-16
Stowed status
Deployed status

12. Multi-Beam Payload ChinaSat-16 3 gateway beams 26 user beams
A High Throughput Satellite at Ka band
3 gateway beams
26 user beams

13. Multi-Beam Payload ChinaSat-16 RTN Link FWD Link 50W TWTA 6 channels
EIRP: 55dBW
G/T:13dB/K
100W TWTA
20 channels
EIRP: 59.5dBW
G/T: 13dB/K
C/I: 15dB

14. For more information please contact: marketing@cast504.com