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Accelerator Application
APPLICATION
AC200V/DC INCONTROL-A
CONTROL-B
RF
IN-2
RF
IN-1
CO
NT
ROL-
B
CO
NT
ROL-
A
RF
IN-2
RF
IN-1
CO
NT
ROL-
B
CO
NT
ROL-
A
RF
IN-2
RF
IN-1
CO
NT
ROL-
B
CO
NT
ROL-
A
RF
IN-2
RF
IN-1
CO
NT
ROL-
B
CO
NT
ROL-
A
RF IN RF IN RF IN RF IN
RF REF MON
-76dB
BLANKING IN
TTL Lo=Active
RF FWD MON
-76dB
Ethernet
LINE INPUT
AC200V,3Φ 50/60Hz
ST-BY
RFIN1.7MHz
50Ω
ST-BY
POWER
R&K Company Limited
RF IN-4
RF IN-3
RF IN-2
RF IN-1
EMERGENCYSTOP
PAGE SELECT
RESET
DOWN
RF ON/OFF
LOCALUP
A1.7BW0.4-6878RRF POWER AMPLIFIER
R&K
FRONT VIEW REAR VIEWSIDE VIEW
1100800
1513
1680
83.5
684
768
853
Frequency RangeOutput PowerOperation ModeImpedanceMaximum Input LevelHarmonicsSpuriousInput VSWROutput VSWRBlanking Pulse Input
RF Blanking ON/OFF RatioSingle Amplifier AM modulation Level LinearitySingle Amplifier AMmodulation Phase LinearityAC Supply InputConsumption PowerOperating TemperatureStorage TemperatureConnectors
Size
WeightCoolingProtection Circuits
Metering
: 1.7MHz~1.9MHz: 60kW (pep): Class D: 50Ω: 1Vp-p: -25.0dBc (max.) @Po=60kW: -60.0dBc (max.) @Po=60kW: 1.5 (max.): 2.0 (max.): TTL Lo=ON, TTL Hi=OFF (TTL width≦25ms,duty≦50%): 100dB (min.)
: ±25% (max.)
: ±25% (max.): AC200V±10%/3φ, 50/60Hz: Ave. 52kVA (typ.), Peak 107kVA (typ.): 0℃ to +35℃: -15℃ to +55℃: RF‐IN N‐FEMALE RF‐OUT 3-1/8” EIA Flange: (W)824mm×(D)1160mm×(H)1680mm (W)684mm×(D) 853mm×(H) 768mm (Excluding Projection): 1200.0kg (max.): Forced Air Cooling and Water Cooling: Over Temperature Protection Power Supply Voltage Protection Output Over Power Protection Output Over Reflection Power Protection Blanking Input Error protection Over Dorain Voltage/Current Protection Gate Voltage Protection Input Level Protection Water Flow Protection Water Temperature Protection: R&K Multi Monitoring System
R&K-A1.7BW0.2-6878R
R&K-A1.7BW0.2-6878R
■ Envelope Synchronous Amplitude Modulation, Class D RF Power Amplifier.■ Frequency Range:1.7MHz~1.9MHz■ Output Power :60kW(pep)■ Building Block Construction
HIGH POWER AMPLIFIER
Model NumberOP XX Option:Ask
HOW TO ORDER
SPECIFICATIONS @+25℃
OUTLINE DRAWING ※IN MILLIMETERS
- 1 -
80
79
78
77
76
75
74
73
0
-10
-20
-30
-40
1.80 1.901.70 1.851.75
3.0
2.8
2.6
2.4
2.2
2.0
1.8
1.6
1.4
1.2
1.80 1.901.70 1.851.75
1.80 1.901.70 1.851.75
Output Power = 60kW
Output VSWRInput VSWR
HIGH POWER AMPLIFIERO
utpu
t Pow
er (d
Bm
)
Frequency (MHz)
Output Power @PeakOutput Power @Peak
Out
put H
arm
onic
s (d
Bc)
Output HarmonicsOutput Harmonics
VS
WR
Frequency (MHz)
Input / Output VSWRInput / Output VSWR
TYPICAL PERFORMANCE (Temp @+25℃)
Frequency (MHz)
R&K-A1.7BW0.2-6878R
- 2 -
HIGH POWER AMPLIFIER
Spurious (Narrow Band)Spurious (Narrow Band)
Spurious (Broad Band)Spurious (Broad Band)
1.2 1.3 1.4 1.5 1.7 1.8 1.9 2.0 2.2
110
100
90
80
70
60
50
40
30
20
110
100
90
80
70
60
50
40
30
20
1.6 2.1
1.60 1.62 1.64 1.66 1.70 1.72 1.74 1.76 1.801.68 1.78
80dBc or more80dBc or more
Modulated NoiseModulated Noise
80dBc or more80dBc or more
Modulated AM SignalModulated AM Signal
TYPICAL PERFORMANCE (Temp @+25℃)
Frequency (MHz)
Frequency (MHz)
Leve
l (d
Bm
)Leve
l (d
Bm
)
R&K-A1.7BW0.2-6878R
- 3 -
80
70
60
50
40
30
20
10
01.80 1.901.70 1.851.75
100 14020 60 80 120400
70
60
50
40
30
20
10
100
90
80
70
60
50
40
1.70MHz
1.75MHz
1.80MHz
1.85MHz
1.90MHz
OutputPower Efficiency
53.2V
71.7V
89.2V
105.8V
114.6V
127.5V
HIGH POWER AMPLIFIERO
utpu
t Pow
er (k
W)
Frequency vs. Output PowerFrequency vs. Output Power
Frequency (MHz)
R&K-A1.7BW0.2-6878R
Effi
cien
cy (%
)
Drain Voltage (V)
Out
put P
ower
(kW
)
Drain Voltage vs. Output Power & EfficiencyDrain Voltage vs. Output Power & Efficiency
TYPICAL PERFORMANCE (Temp @+25℃)
- 4 -
10
8
6
4
2
0
-2
-4
-6
-8
100 14020 60 18080 120400 160 200 240220
100
90
80
70
60
50
40
30
20
10
150 21030 90 270120 180600 240 300 360 390330
1.0
0.8
0.6
0.4
0.2
0
-0.2
-0.4
-0.6
-0.8
100
90
80
70
60
50
40
30
20
10
420
Output Power
HeatsinkTemp.WaterTemp.
EnvironmentalTemp.
Phase
HeatsinkTemp.WaterTemp.
EnvironmentalTemp.
Frequency :1.7MHzOutput Power:63.7kW
Frequency :1.7MHzOutput Power:63.7kW
HIGH POWER AMPLIFIER
TYPICAL PERFORMANCE (Temp @+25℃)
R&K-A1.7BW0.2-6878R■Gain / Phase StabilityGain / Phase Stability
Phase Stability vs. TimePhase Stability vs. Time
Tem
pera
ture
(℃)
Time (minute)
Pha
se (d
eg.)
Tem
pera
ture
(℃)
Time (minute)
Leve
l dev
iatio
n (d
B)
Output Power Stability vs. TimeOutput Power Stability vs. Time
- 5 -
・Frequency = 1.70MHz / Output Power = 65.125kW ・Frequency = 1.70MHz / Output Power = 65.125kW ※70dB coupler connection
・Frequency = 1.75MHz / Output Power = 65.165kW ・Frequency = 1.75MHz / Output Power = 65.165kW ※70dB coupler connection
・Frequency = 1.80MHz / Output Power = 66.663kW ・Frequency = 1.80MHz / Output Power = 66.663kW ※70dB coupler connection
・Frequency = 1.85MHz / Output Power = 66.663kW ・Frequency = 1.85MHz / Output Power = 66.663kW ※70dB coupler connection
・Frequency = 1.90MHz / Output Power = 67.418kW ・Frequency = 1.90MHz / Output Power = 67.418kW ※70dB coupler connection
X:5ms / DIV Y:50V / DIV
X:5ms / DIV Y:50V / DIV
X:5ms / DIV Y:50V / DIV
X:5ms / DIV Y:50V / DIV
X:5ms / DIV Y:50V / DIV
X:5ms / DIV Y:500mV / DIV
X:5ms / DIV Y:500mV / DIV
X:5ms / DIV Y:500mV / DIV
X:5ms / DIV Y:500mV / DIV
X:5ms / DIV Y:500mV / DIV
HIGH POWER AMPLIFIER
R&K-A1.7BW0.2-6878R
- 6 -
TYPICAL PERFORMANCE (Temp @+25℃)
■P.S. Output WaveformP.S. Output Waveform ■RF Output Voltage WaveformRF Output Voltage Waveform