CPI 1.25 kW SuperLinear tm TWT Amplifier
for Satellite Communications
Ku- Band
The TL12UI
1250 W peak (540 W
linear) TWT Compact
High Power Amplifier
features high
efficiency, small size
and integral computer
Meets International Safety Standard
EN-60215 and EMC Standard 2004/108/EC
to satisfy worldwide requirements.
Efficient and Reliable
Employs an ultra-high efficiency dual-depressed
collector helix traveling wave tube backed
by many years of field-proven experience in
airborne and military applications. The collector
design is optimized for super-cool operation.
Easy to Maintain
Modular design and built-in fault diagnostic
capability with convenient and clearly visible
indicators for easy maintainability in the field.
Worldwide Support
Backed by over two decades of satellite
communications experience, and CPI’s
worldwide 24-hour customer support network
that includes fifteen regional factory
service centers.
Simple to Operate
User-friendly microprocessor-controlled
logic with integrated computer interface,
digital metering, pin diode attenuation,
optional integrated linearizer for improved
intermodulation performance, and BUC option
for use with L-band modems.
811 Hansen Way
P.O. Box 51625, Palo Alto, CA 94303
tel: +1 (650) 846-3803
fax: +1 (650) 424-1744
e-mail: [email protected]
1 2 5 0 W S u p e r L i n e a r tm C o m p a c t T W TA
Global Applications
Provides 1250 watts of peak power (540 watts
linear) in a compact nine rack-unit package,
digital ready, for wideband, single- and
multi-carrier satellite service in the 13.75 to
14.50 GHz frequency band. Designed to operate
at up to 540 watts flange linear power for
multi-carrier uplinks. Ideal for transportable
and fixed earth station applications where space
and prime power are at a premium. 30% smaller
than traditional HPAs.
Ku -B a n d
Electrical (continued)
Group Delay
(in any 80 MHz band)
0.01 ns/MHz linear
0.001 ns/MHz2 parabolic
0.5 ns pk-pk ripple max.
Flange Output Power (Linear) Optimized for IM3 = -26 dBc at
540 W output power (with linearizer),
or IM3 = -26 dBc at 215 W output
power (without linearizer)
Primary Power2
All ratings are ±10%, 47-63 Hz, 5-wire,
3-phase with neutral and ground
200 to 240 VAC (without neutral)
380 to 415 VAC
Flange Output Power (max)
Power Factor
0.95 min.
750 MHz
Power Consumption
70 dB min. at 540 W output power
70 dB min. at 50 W output power
2.6 kVA max. at 540 W output power
(2.3 kVA typ.)
• Redundant and Power
Combined Subsystems
RF Level Adjust
0 to 30 dB continuous
Ambient Temperature
Output Power Adjustability
±0.1 dB
-10° to +50°C operating
-20° to +70°C non-operating
• External Receive Band
Reject Filter
Gain Stability
±0.25 dB/24 hr max.
(at constant drive and temp.)
Relative Humidity
95% non-condensing
Up to 10,000 ft (3000 m) with standard
adiabatic derating of 2°/1000 ft.;
50,000 feet non-operating
Shock and Vibration
Designed for normal transportation
environment per Section 514.4
MIL-STD-810E. Designed to withstand
20g at 11 ms (1/2 sine pulse) in
non-operating condition
Heat Dissipation
2000 W max.
• Integral Linearizer
13.75 to 14.50 GHz
TWT Output Power
1.25 kW peak, 625 W average
• Remote Control Panel
• Integral L-Band Block
Upconverter (BUC)
Small Signal Gain Slope
±0.02 dB/MHz max.
Small Signal Gain Variation
0.5 dB pk-pk max. over any 80 MHz;
1.0 dB pk-pk max. over any 80MHz
with linearizer option;
3.0 dB pk-pk max. across 750 MHz;
4.0 dB pk-pk max. across 750 MHz
with linearizer option;
5.0 dB pk-pk max. across 750 MHz
with BUC option;
6.0 dB pk-pk max. across 750 MHz
with BUC and linearizer options
• Extended Frequency
(12.75 to 14.50 GHz)
Input/Output VSWR
1.30:1 max.
1.5:1 max. for full spec compliance;
any value without damage;
2.0:1 continuous operation
Phase Noise1
phase noise continuous
AC fundamentals related
Sum of spurs
Noise and Spurious
12 dB below mask
-50 dBc
-47 dBc
<-130 dBW/4 kHz, below 12.7 GHz
(below 11.7 GHz w/ 12.75 GHz config.)
<-65 dBW/4 kHz, passband to 18.0 GHz
(<-60 dBW/4 kHz with linearizer)
<-105 dBW/4 KHz, 18.0 to 26.0 GHz
<-125 dBW/4 kHz, 26.0 to 40.0 GHz
AM/PM Conversion
2.0°/dB max. for single carrier at
8 dB OBO (at 3 dB OBO with
optional linearizer
Harmonic Output
-60 dBc
(with two equal carriers)
-26 dBc max. with linearizer at 540 W
output power (-26 dBc without linearizer
at 215 W output power)
Certificate Number: 30515
For more detailed information, please refer to the corresponding CPI Technical Description.
Note: Specifications may change without notice as a result of additional data or product refinement.
Please contact CPI before using this information for system design.
MKT 232, ISSUE 7
Forced air with integral blower.
Maximum external pressure loss
allowable: 0.25 inch water gauge.
RF Input Connection
Type N female
RF Output Connection
WR-75G waveguide flange,
grooved, threaded UNF 2B 6-32
RF Power Monitors
Type N female
Dimensions (W x H x D)
19 x 15.75 x 24 in.
(483 x 400 x 610 mm)
155 lbs. (70.5 kg) max.
1Prime power AC line unbalance not to exceed 3%. Excess imbalance may cause
an increase in residual RF noise (AM, FM and PM). Phase noise increase is typically 2.5 dB / %
2AC current harmonic content: less than 20%, primarily fifth and seventh harmonics. Harmonics
must be considered when choosing UPS sources.