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TELEDYNE Paradise DatacomA Teledyne Technologies Company
1
Satellite Communication RF Products
• Low Noise Amplifiers• Frequency Converters• Solid State Power Amplifiers
Stephen D. Turner, PE., Senior Engineering DirectorParadise Datacom LLC, State College, Pennsylvania, USA
TELEDYNE Paradise DatacomA Teledyne Technologies Company
C , X, Ku , Ka Band LNAs
2
X Band LNA
Ka Band LNA
• Noise Temperature optimized in SatCom Sub-Bands:• 3.7 – 4.2 GHz• 3.4 – 4.2 GHz• 4.5 – 4.8 GHz• 7.25-7.75 GHz • 10.70 – 11.70 GHz• 10.70 – 12.75 GHz• 11.70 – 12.20 GHz• 18.2 – 20.2 GHz• 20.0 – 21.0 GHz
• +12 to +28 VDC input• Optional Transmit Reject Filters• Form C Summary Alarm
TELEDYNE Paradise DatacomA Teledyne Technologies Company
Redundant LNA Systems
3
Can be configured in 1:1 or 1:2 redundant configurations
Configured with C, X, Ku, and Ka band LNAs
Monitor and Control provided by the RCP2-1100 / RCP2-1200 Redundant Controller.
Switch Control Cable can be supplied to interface controller to LNA plate assembly. 1:2 C Band LNA System with
Redundant Controller
TELEDYNE Paradise DatacomA Teledyne Technologies Company
Redundant LNB Redundant Systems
4
C Band 1:1 LNB System 1:2 Ku Band LNB Plate Assembly
Standard 1:1 and 1:2 configurations similar to LNA redundant systems Used with RCP2-1100 or RCP2-1200 indoor redundant controllers RCP2 Controller supports “Band Switched” LNBs External reference and Internal referenced LNBs supported LNBs are modified to provide a DC Current alarm for fault detection and
automatic switching.
TELEDYNE Paradise DatacomA Teledyne Technologies Company
5
Ka Band LNA / LNB Systems
1:1 Ka Band LNB System 1:2 Ka Band LNB System with Filter Option
TELEDYNE Paradise DatacomA Teledyne Technologies Company
Redundant System Controllers
6
RCP2-11001:1 Controller
RCP2-12001:2 Controller
• 1 RU high standard controller chassis• Front panel mimic display of switch position• RS232/485 and Ethernet I/O capability
• Full functional Ethernet Port – UDP, SNMP v1.0, & internal web browser• Up to 1000 meters switch cable drive capacity• Audible alarms• Full compliment of discrete I/O including external alarm inputs• New: Support for Band Switched LNBs & “dumb” BUC Redundant
Systems
TELEDYNE Paradise DatacomA Teledyne Technologies Company
vBUC, VSAT L-Band Block Up Converters
7
12 W Psat Ka Band now available
Output Power levels:
C-Band: 5.850-6.425 GHz ( 25W,50W, & 80W) X-Band: 7.90-8.40 GHz (10W, 25W, & 35W, & 80W)Ku Band: 14.00-14.50 GHz (10W, 16W, 25W, & 40W)Ka Band: 30-31 GHz (12W)
TELEDYNE Paradise DatacomA Teledyne Technologies Company
vBUC Feature Set
8
Built-in 1:1 Redundancy ControlHigh Stability Internal Reference Option
Auto detection and switchover to externally applied reference.Automatically phase lock to 5,10,20,25, and 50 MHz external reference.
Wide range for input reference power : -10 to +5 dBm20 dB Gain Adjustment
Legacy FSK and RS485 Monitor and ControlStandard Paradise Datacom Monitor and Control
Ethernet based Monitor and Control includingUDP, SNMP v1.0, and internal web browser
24, 48 VDC operation or optional add-on AC/DC Power Supply
TELEDYNE Paradise DatacomA Teledyne Technologies Company
vBUC AC Power Supply
9
85-265 VAC Input48VDC Output @ 500W maximum
AC Power Supply mounted to vBUC
AC Power Supply can be mounted to vBUC or remotely mounted
TELEDYNE Paradise DatacomA Teledyne Technologies Company
Fiber Optic Support
10
Fiber Optic Transceiver Support now available on all outdoor SSPAs: Compact Outdoor, Compact Outdoor Jr., and vBUC.
TELEDYNE Paradise DatacomA Teledyne Technologies Company
Rack Mount Converters
11
70 MHz to L-Band Synthesized Up/Down Converters
L-Band to C,X, and Ku Band Block Up/Down Converters
Configure with redundant block up converters for usewith phase combined HPA systems.
TELEDYNE Paradise DatacomA Teledyne Technologies Company
GaN SSPA Products
12
• Indoor, Rack Mount, SSPA Family• Outdoor SSPA Product Family• SSPA Monitor and Control• SSPA Systems
• Redundant, Phase Combined
TELEDYNE Paradise DatacomA Teledyne Technologies Company
Why GaN ?
13
Higher electric breakdown fields which lead to higher voltage and higher power density operation.
Higher saturated electron velocity leading to higher drain currents and higher impedance.
Wider band gap energy leading to higher MTBFs.
Higher thermal conductivity leads to higher reliability and higher temperature operation.
All of the above advantages lead to higher efficiency and wider bandwidth operation as compared to GaAs MESFETs.
TELEDYNE Paradise DatacomA Teledyne Technologies Company
GaN vs. GaAs Technology
14
• Microwave GaAs devices are realized with a MESFET structure. This makes it possible to control the channel doping and linearity. The GaAs MESFET has a hard limiting characteristic and produces good linear power.
• Microwave GaN devices are realized as HEMTs which have more limitations on channel doping. The GaN HEMT has a much softer compression characteristic and therefore the linear power characteristic is not as good as the GaAs MESFET.
• Various Linearization techniques are used with GaN HEMTs to improve the overall linear power performance.
TELEDYNE Paradise DatacomA Teledyne Technologies Company
CW Power Sweep Comparison
15Plots Courtesy of Mitsubishi Electric Corporation
GaN HEMT
GaAsMESFET
Gai
nOutput PowerInput Power
Out
put P
ower
GaN HEMT
GaAsMESFET
Softer Compression characteristic leads to higher distortion for a given back off
TELEDYNE Paradise DatacomA Teledyne Technologies Company
SSPA Module with GaN Cascade
16
Soft Compression – amplifier compresses over wide range of input power
TELEDYNE Paradise DatacomA Teledyne Technologies Company
Linearized GaN SSPA Module
17
TELEDYNE Paradise DatacomA Teledyne Technologies Company
Indoor GaN SSPA Family
18
4 RU high chassis
S- Band:500W, 600W, 800W, 1 kWC-Band: 300W, 400W, 650W, 800WX-Band: 300W, 400W, 650W, 800W
Ku-Band: 300W, 400WKa-Band: 100W & 200W
3 RU high chassis
S-Band: 50W, 100W, 200W, 300W, 400W, 500W &, 600WC-Band: 50W, 100W, 150W, 200W, 300W, 400W, 650W, & 800WX-Band: 50W, 100W, 150W, 200W, 300W, 400W, 650W, & 800W
Ku-Band: 40W,50W,80W,100W, 150W, 200W, 250W, 300W, 400WKa-Band: 40W & 100W
TELEDYNE Paradise DatacomA Teledyne Technologies Company
Indoor GaN SSPA Family
19
5 RU high chassis
S-Band: 1.2 kW, 1.6 kW & 2 kWC-Band: 1.3 kW, & 1.6 kWX-Band: 1.3 kW, & 1.6 kWKu-Band: 600W, & 800WKa-Band: 400W & 500W
7 RU high modular chassis
C Band: 1.1 kW & 1.5 kWX Band: 1.1 kW
Ku Band: 500W & 800W
TELEDYNE Paradise DatacomA Teledyne Technologies Company
3 RU GaN SSPA Chassis
20
3RU rack height
24 inchChassis depth
Smallest, highest power density, Solid State Power Amplifier chassis developed to date!
Available RF Output Power levels:
S-Band: 50W, 100W, 200W, 300W, 400W, 500W &, 600WC-Band: 50W, 100W, 150W, 200W, 300W, 400W, 650W, & 800WX-Band: 50W, 100W, 150W, 200W, 300W, 400W, 650W, & 800W
Ku-Band: 40W,50W,80W,100W, 150W, 200W, 250W, 300W, 400WKa-Band:50W & 100W
Extremely Compact
TELEDYNE Paradise DatacomA Teledyne Technologies Company
SSPA Chassis Front Panel Layout
21
On/Off IndicatorOnline Indicator in Redundant System
2 Line x 40 Character Display Menu navigationbuttons and Entry selectionFault Status Indicators
Optional RF Input Sample Port -10 dBc Coupler
RF Output Sample Port-40 dBc Coupler
Plug-in Power Supply Module
Front Panel Air IntakeRemovable Fan Tray
Dedicated front panel buttons for:Main menu screen
Local / Remote selectionTX Inhibit
TELEDYNE Paradise DatacomA Teledyne Technologies Company
Modular Chassis Architecture
22
Removable front panel fan tray Removable front panel power supply assembly
Removable rear panel fan tray Removable rear panel monitorand control card
All SSPA Chassis have removable fans and M&C card.
TELEDYNE Paradise DatacomA Teledyne Technologies Company
Chassis Monitor and Control
23
Link Port and Switch Port for “Built-in” 1:1 Redundancy Control Parallel I/O Port for full compliment of Form C relays for alarm &
status outputs as well as opto-isolated inputs Program Port for field upgradeable flash firmware Main Serial Port for RS 232 or RS 485 serial I/O Local Serial Port for phase combined systems or remote control panel Hot Swappable Ethernet supports UDP, SNMP with Traps, and Internal Web Page
Ethernet Port
TELEDYNE Paradise DatacomA Teledyne Technologies Company
4 and 5 RU Indoor GaN SSPA Chassis
24
Front panel air intakeremovable fan tray
On/Off SwitchRF Output
Sample Port
Alarm IndicatorsFront Panel Display
TELEDYNE Paradise DatacomA Teledyne Technologies Company
External Power Supply Interconnection
25Company Confidential
Quick disconnect connectorbulkhead for DC Input
No bus bars
1RU RedundantPower Supply
4RU SSPA Chassis
TELEDYNE Paradise DatacomA Teledyne Technologies Company
7RU Modular Chassis SSPA
26
Chassis consists of (4) Hot-swap removable SSPA modulesPower Levels limited by SSPA Module physical size
Output Power Levels
C-Band: 1.1 kW & 1.5 kWX-Band: 1.1 kW
Ku-Band: 500W & 800WKa-Band: 400W
TELEDYNE Paradise DatacomA Teledyne Technologies Company
7RU Chassis Removable Subassemblies
27
Removable Fans Removable SSPA Modules
TELEDYNE Paradise DatacomA Teledyne Technologies Company
Outdoor GaN SSPA Family
28
Compact Outdoor Jr.
C-Band: 80W, 100W, 150W & 200WX-Band: 80W, 100W, 150W & 200WKu-Band: 40W,50W,80W & 100W
Ka-Band: 20W & 30W
Compact Outdoor SSPA
S-Band: 50W,100W,200W,300W,400W, & 500WC-Band: 300W & 400WX-Band: 300W & 400W
Ku-Band: 100W, 150W, 200W,& 250WKa-Band: 50W & 100W
New High Power Outdoor PackageKingpost mountable
S-Band: 500W, 600W, 800W, 1000WC-Band: 650W & 800WX-Band: 650W & 800W
Ku-Band: 300W & 400WKa-Band: 200W
TELEDYNE Paradise DatacomA Teledyne Technologies Company
Compact Outdoor Jr.
29
COjr, is approximately ½ size and weight of standard Compact Outdoor package.
Output Power Levels:
C-Band: 80W, 100W, 150W & 200WX-Band: 80W, 100W, 150W & 200WKu-Band: 40W, 50W, 80W, & 100W
Ka-Band: 20W & 30W
TELEDYNE Paradise DatacomA Teledyne Technologies Company
Standard Compact Outdoor GaN SSPA
30
Compact Size: 10.0in x 19.5in. X 6.50in. Very light weight: 36 lb. (16.4 kg.) Extremely Robust Outdoor Operation
• -40 C to +60 C Operating Range Universal Input Power Supply
• 90-265 VAC input range, PFC Variable Gain: 55 to 75 dB, 0.1dB steps Output Power Detector Output Power Sample Port, -40 dBc Internal 1:1 Redundant Controller Large status LED Serial or Parallel Monitor and Control (RS232 / RS485) Ethernet Interface Standard, UDP-SNMP-Web Browser Auxiliary +15VDC power port for LNB or Fiber Optic module
TELEDYNE Paradise DatacomA Teledyne Technologies Company
Standard Compact Outdoor GaN SSPA
31
• High stability 10 MHz internal reference• Auto detection of external reference• Locks to a variety of reference frequencies• IFL based Monitor & Control using FSK• Excellent Phase Noise Performance• Seamless integration with Fiber Optics• Seamless integration with LNB and
L Band modem for full transceiver based applications
ZBUC L Band Block Up Converter
Power Levels:
S-Band: 50W,100W,200W,300W,400W, & 500WC-Band: 300W & 400WX-Band: 300W & 400W
Ku-Band: 100W, 150W, 200W,& 250W
L Band Input with Integrated ZBUCTM
TELEDYNE Paradise DatacomA Teledyne Technologies Company
Compact Outdoor SSPA
32
• Extremely efficient forced convection thermal design with quick disconnect fan tray for maintenance of fans and heat sink assembly.
Robust design for high dust and high heat environments
Operating Temperature: -40C to +60 CAltitude: up to 10,000 feet with no de-rating
De-rate maximum operating temperature by 2 degrees/1,000 ft. beyond 10,000 feet.
Shock- 50g p-p , 11msec pulsesVibration- 3g rms 30minute, 5Hz to 2000Hz operational.
TELEDYNE Paradise DatacomA Teledyne Technologies Company
100W Ka Band GaN SSPA
33
29.0 – 31.0 GHz Operation with 50W Linear Power
Available Q3- 2014
TELEDYNE Paradise DatacomA Teledyne Technologies Company
High Power Outdoor GaN SSPA
34
Linear Power ½ of Saturated Power LevelsSize slightly larger than the Compact Outdoor SSPAWeight approximately 100 lbs.
S-Band: 500W, 600W, 800W, 1000WC-Band: 650W & 800WX-Band: 650W & 800W
Ku-Band: 300W & 400WKa-Band: 200W
TELEDYNE Paradise DatacomA Teledyne Technologies Company
650W X-Band Module for New Outdoor Package
35
650 W, GaN X-Band Module with integral waveguide-spatial combiner
TELEDYNE Paradise DatacomA Teledyne Technologies Company
300W Ku-Band Module for New Outdoor Package
36
300 W, GaN Ku-Band Module with integral waveguide-spatial combiner
TELEDYNE Paradise DatacomA Teledyne Technologies Company
400W Ku-Band Module for New Outdoor Package
37
TELEDYNE Paradise DatacomA Teledyne Technologies Company
600W S-Band SSPA Module
38
TELEDYNE Paradise DatacomA Teledyne Technologies Company
Monitor and Control Options
39
1 RU chassis Can remotely control SSPA up to 4000 ft. (1000 m) mimics actual SSPA chassis front panel RCP2-1000-CO – Remote Control Panel for the
Compact Outdoor SSPA RCP2-1000-RM – Remote Control Panel for the
Indoor Chassis SSPA Ethernet Port
Hardware and Software Options for Monitor and Control of SSPA and BUC Products
Remote Control Panel
TELEDYNE Paradise DatacomA Teledyne Technologies Company
Hand Held Controller for Outdoor SSPAs
40
Will work with all GaN Compact Outdoors, VBUC, Compact Jr., and High Power Outdoor SSPAs
TELEDYNE Paradise DatacomA Teledyne Technologies Company
Traditional 1:1 Redundant Systems
41
No additional Redundancy Controller required.
1:1 System with 4 RU SSPA Chassis
1:1 Redundant System of 600W S Band High Power Outdoor SSPAs
1:1 System with Compact Outdoor SSPAs
TELEDYNE Paradise DatacomA Teledyne Technologies Company
1:1 Redundant Plates for COjr.
42
1:1 System Redundant Plates with the COjr. Package
Standby Amplifier
On-line Amplifier
RF Input
RF Output
Maintenance Switch
Maintenance Output-40 dBc
Redundancy Switch
TELEDYNE Paradise DatacomA Teledyne Technologies Company
Maintenance Switch Controller
43
FAULTS
SUMMARYOUTPUT
INPUT
POS 1
POS 2
MAINTENANCE SWITCH
OFFLINEOUTPUT
POWERSUPPLY
HPA Output
Test Output #2
Maintenance Switch
P = 65.9 dBmP = 63.1 dBm
TELEDYNE Paradise DatacomA Teledyne Technologies Company
Phase Combined Systems
44
RF Output
Amp 1
Amp 2
RF Input RF Input
Amp 1
Amp 2
Standby
Amp 3
RF Output
1:1 Phase Combined System 1:2 Phase Combined System
Traditional 1:1 and 1:2 Phase Combined SSPA Systems with 1RU FPRC Controller
TELEDYNE Paradise DatacomA Teledyne Technologies Company
1.5 kW X-Band Phase Combined System
45
Phase Combined 800W X-Band SSPAs in the High Power Outdoor Package
TELEDYNE Paradise DatacomA Teledyne Technologies Company
Modular Phase Combined Systems
46
• PowerMAX architecture is the premium approach to modular SSPA Systems.
• Ultimate “Parallel” System Reliability
• Extremely High Output Power Capability
TELEDYNE Paradise DatacomA Teledyne Technologies Company
GaN PowerMAX “Innovation in Modularity”
47
PowerMAX is the latest advancement in Modular SSPA Technology
•Systems can be configured in 4 module, 8 module, or 16 module systems.
•Systems configured with a variety of module power levels to custom fit your redundant power requirement.
•Systems are completely field scalable:•Start out with 4 modules. Grow system to 8 modules and/or 16 modules over time.•No need to return system to factory for upgrade.•Reduces initial equipment investment cost.
•All active components are modular and hot swappable from the front or rear panels including:
•Power Supply Modules•Fans•SSPA Modules•M&C Card
U.S. patents8,189,338 B28,411,447 B2
TELEDYNE Paradise DatacomA Teledyne Technologies Company
RF Soft-Fail Redundancy
48
• Modular Amplifier Designs• Combine –n- number of modules• Scalable• Field Replaceable
• High Level of System Integration• Integrated Ethernet / Router Capability
• Pure Parallel Redundancy• No single point failures of active components
TELEDYNE Paradise DatacomA Teledyne Technologies Company
Pure Parallel System Architecture
49
• System is designed to be “Purely Parallel” .
• Failure of a Chassis or M&C Card will have no impact on the system operation.
• Unlike some modular amplifiers, PowerMAX is fully redundant right down to the Monitor and Control functionality.
• The loss of a M&C card will not interrupt system remote control.
• System remote control is available as RS485 or Ethernet.
TELEDYNE Paradise DatacomA Teledyne Technologies Company
Simplicity of Operation
50
• The sophisticated system monitor and control allows the system to be operated as if it were a “single” chassis amplifier.
• Single chassis-like operation is maintained with remote control as well as local (front panel) operation.
• The system output power detection is measured in “True rms” watts or dBm. power meter accuracy.
• Most HPA systems today use diode (peak) power detectors that do not accurately measure multicarrier or modulated signals.
• PowerMAX reports the true aggregate output power regardless of the number of carriers and modulation schemes.
TELEDYNE Paradise DatacomA Teledyne Technologies Company
Efficient Power Combining
51
• Extremely efficient power combining is at the heart of the PowerMAX architecture.
• Advanced 3D Electromagnetic Modeling Techniques are employed to design near loss-less 4-way combiners.
• The easily assembled 4-way combiner makes it very convenient to add SSPA modules in groups of four.
• All Passive Combining & No Switching results in “hitless” operation.
TELEDYNE Paradise DatacomA Teledyne Technologies Company
1.5 kW, Ku Band PowerMAX System
52
(8) 250W Ku Band GaN ModulesCombined to provide 1.5 kW saturated RF Output Power
1.1 kW Redundant (n-1 module) output power
TELEDYNE Paradise DatacomA Teledyne Technologies Company
4kW X-Band PowerMAX System
53
• Parallel Array of (8) 650 W GaN SSPA Modules in 7.9-8.4 GHz
• Efficiency approaching:• 40% DC to RF• 25% AC Prime to Saturated RF
TELEDYNE Paradise DatacomA Teledyne Technologies Company
10kW S-Band GaN SSPA System
54
Combine (8) 800W Modules to produce 5 kW per Cabinet
Combine two cabinets to produce 10 kW
TELEDYNE Paradise DatacomA Teledyne Technologies Company
8 Module GaN PowerMAX Systems
55
Reference Specification Sheet 211198
TELEDYNE Paradise DatacomA Teledyne Technologies Company
8 Module GaN PowerMAX Systems
56
TELEDYNE Paradise DatacomA Teledyne Technologies Company
PowerMAX in 1:2 Redundant Systems
57
• The PowerMAX architecture can be a very economical solution to very high power 1:2 redundant systems. A single PowerMAX can be used on each polarity without the need of a third standby amplifier.
RF OUT-POL 2
RF OUT-POL 1RF IN-POL 1
RF IN-POL 2
Redundant Controller
POL 1
POL 2
Traditional 1:2 Redundant SystemPowerMAX in Dual Pole System
Lower Cost and Higher Overall System Reliability
TELEDYNE Paradise DatacomA Teledyne Technologies Company
Amplifier Linearity
58
• Linearity is a complex topic but in Satcom applications, can be subdivided into three primary categories.
• Single Carrier – spectral regrowth of a single digitally modulated carrier
• Two-Tone – Third Order Intermod products of a two CW tone signal
• Multi-Carrier – Generally 3 or more carriers or noise power ratio performance
TELEDYNE Paradise DatacomA Teledyne Technologies Company
Single Carrier Spectral Regrowth
59
Single Carrier Linearized GaNQPSK, OPSK = -25 dBc @ 1 dB back off from Psat16 QAM, OFDM = -25 dBc @ 2 dB back off from Psat
TELEDYNE Paradise DatacomA Teledyne Technologies Company
High Data Rate Spectral Regrowth
60
100 MBPS, 8PSK Carrier at 3 dB back off from Psat in a 250W Ku Band GaN SSPA
-27 to -30 dBc Spectral Regrowth@ 1x symbol rate
TELEDYNE Paradise DatacomA Teledyne Technologies Company
High Data Rate Spectral Regrowth
61
-30 dBc Spectral Regrowth@ 1x symbol rate
60 MBPS, 16QAM Carrier at 3 dB back off from Psat in a 250W Ku Band GaN SSPA
TELEDYNE Paradise DatacomA Teledyne Technologies Company
High Data Rate Spectral Regrowth
62
60 MBPS, 16QAM Carrier at 3 dB back off from Psat in a 400W C Band GaN SSPA
-25 to -30 dBc Spectral Regrowth@ 1x symbol rate
TELEDYNE Paradise DatacomA Teledyne Technologies Company
Two-Tone IMD of Linearized GaN SSPA
63
Multi-Carrier Linearized GaNTwo Tone IMD = -25 dBc @ 2 dB back off from Psat3-20 Tone IMD = -25 dBc @ 3-4 dB back off from Psat
TELEDYNE Paradise DatacomA Teledyne Technologies Company
Multi-Carrier Intermod Performance
64
-50
-45
-40
-35
-30
-25
-20
-15
-10
-5
0
-12 -11 -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0
Two-ToneThree-Tone22-Tone
IMD in dBc
Back off from Psat
Multi-Carrier Linearized GaNTwo Tone IMD = -25 dBc @ 2-3 dB back off from Psat3-20 Tone IMD = -25 dBc @ 3-4 dB back off from Psat
TELEDYNE Paradise DatacomA Teledyne Technologies Company
GaN SSPA vs TWTA & GaAs SSPA Comparisons
65
• GaAs SSPAs
• Traditional Traveling Wave Tube Amplifier, TWTA
• High Efficiency Depressed Collector TWTA
• Klystron Tube Amplifier
TELEDYNE Paradise DatacomA Teledyne Technologies Company
150W Ku GaN vs 125W GaAs SSPA
66
125W GaAs Module in Compact Outdoor Enclosure
150W GaN Module in Compact Outdoor Enclosure
P1=50 dBm ; Plinear=(P1-3dB)=47 dBm (50W)
AC Prime Input Power = 1250W
Psat= 52.0 dBm; Plinear=(Psat-3dB) = 49 dBm (80W)
AC Prime Input Power = 700W
Produces about the same linear power as the 250W (GaAs) Outdoor Package
TELEDYNE Paradise DatacomA Teledyne Technologies Company
400W GaN vs. 250W GaAs SSPA
67
Highest Power available in GaAs is 250W
P1=53 dBm; Plinear = P1 – 3dB= 50dBm (100W)
AC Prime Input Power = 1800W
400W GaN Module in Compact Outdoor
Psat=56 dBm; Plinear = Psat – 3dB= 53dBm (200W)
AC Prime Input Power = 1400W
TELEDYNE Paradise DatacomA Teledyne Technologies Company
C-Band 400W SSPA vs. 400W TWTA
68
400W C-Band GaN SSPA
Output Power @ Psat: 56.5 dBmAC Prime Input Power @ Psat = 2200 W
Max PLinear output power: 53 dBm (200 W)AC Prime Input Power @ 53 dBm= 1780 WAC Prime Power @ 51.5 dBm: 1200 W
Rack Height: 5.25 inchesRack Weight: 70 lbs.
400W C-Band TWTA
Output Power @ Psat: 55.5 dBmAC Prime Input Power @ Psat = 1500 W
Max PLinear output power: 51.5 dBm (140W)AC Prime Input Power @ Plinear = 1300 W
Rack Height: 5.25 inchesRack Weight: 70 lbs.
Traditional TWTA capable of producing full saturated CW power
TELEDYNE Paradise DatacomA Teledyne Technologies Company
400W C-Band GaN SSPA Module
69
(4) 120W GaN HEMTs in Final Stage
TELEDYNE Paradise DatacomA Teledyne Technologies Company
Evolution of the 400W C-Band SSPA
70
• All the above SSPA chassis include the AC/DC switch mode power supply• AC Prime power reduced 40% and size and weight reduced by factor of 3
circa 1995 16 inch rack heightAC Prime @ Plinear: 3000W
(16) 30W GaAs FETs
circa 2005 7 inch rack heightAC Prime @ Plinear: 2400W
(8) 60 W GaAs FETs
circa 2013 5 inch rack heightAC Prime @ Plinear: 1780W
(4) 120 W GaN FETs
TELEDYNE Paradise DatacomA Teledyne Technologies Company
1.3 kW SSPA vs. High Efficiency TWTA
71
• TWTAs utilizing dual depressed collector technology, while not able to produce the full saturated CW power of the tube, have been shown to produce respectable linear output power.
2 kW C-Band High Efficiency TWTA
Output Power @ Psat: 60 dBmAC Prime Input Power @ Psat: 5000 W
Max Plinear output power: 59.4 dBm (890 W)AC Prime Input Power @ Plinear = 4500 W
Rack Height: 16 inchesRack Weight: 155 lbs.
1.3 kW C-Band GaN SSPA
Output Power @ Psat: 61.3 dBmAC Prime Input Power @Psat = 5000 W
Max Plinear output power: 58.8 dBm (760 W)AC Prime Input Power @ Plinear= 4100 W
Rack Height: 9 inchesRack Weight: 100 lbs.
TELEDYNE Paradise DatacomA Teledyne Technologies Company
1.6 kW SSPA vs 2.5 kW C-Band Klystron
72
Tube tuned over narrow operating band segments (45 MHz)
1.6 kW C-Band GaN SSPA
Output Power @ Psat: 62 dBmAC Prime Input Power @ Psat = 11000 W
Max Plinear output power: 60 dBm (1000 W)AC Prime Input Power @ Plinear= 7000 W
Rack Height: 9 inchesRack Weight: 140 lbs.
2.5 kW C-Band Klystron
Output Power @ Psat: 64 dBmAC Prime Input Power @ Psat: 9500 W
Max Plinear output power: 60.0 dBm (1000 W)AC Prime Input Power @ Plinear = 6600 W
Rack Height: 26 inchesRack Weight: 280 lbs.
SSPA covers over 500 MHz of operating bandwidth with no tuning required.
TELEDYNE Paradise DatacomA Teledyne Technologies Company
Summary
73
• GaN HEMTs have enabled SSPA technology to rival the efficiency of TWTA and Klystron Vacuum Tube Amplifiers.
• The high power density of GaN produces power levels comparable to TWT and Klystron amplifiers in smaller and lighter footprints.
• The low voltage operation of SSPAs allows HPA systems to be realized in modular, redundant (soft-fail) systems.
• This allows SSPA based systems to have an extraordinary advantage in mission critical reliability and maintainability.