WPS-495922-02
4.9 – 5.9 GHz Linear Power Amplifier
Data Sheet
Features:
Applications:
•
11.0 dB Gain
•
802.16 WiMax
•
32 dBm P1dB
•
802.11 WLAN
•
47 dBm IP3
•
Wireless Communications
•
EVM < 2.5% at 26 dBm Pout
•
Telecomm Infrastructure
•
Pre-match for Easy Cascade
•
Pb Free Surface Mount Pkg
•
MTTF > 100 yrs @ TC 150°C
Description:
The WPS-495922-02 is a 1.5 watt amplifier pre-matched to 50 ohm operating over frequency range 4.9 GHz to 5.9 GHz. The RF
gain is 11 dB. The typical output IP3 is 47 dBm and P1dB is 32 dBm. The WPS-495922 amplifier has excellent performance for
802.11 WLAN and 802.16 WiMax applications. At 2.5% error vector magnitude (EVM), the amplifier can achieve an average
output power of 26 dBm. The WPS-495922-02 is packaged in a leadless chip carrier with a proprietary copper alloy for excellent
thermal conductance. The package construction is environmentally ‘lead free’ and ‘cadmium free’.
Electrical Specifications:
•
@ 25°C, Vds = 7.5 V, Zo = 50 ohms
SYMBOL
PARAMETERS
Min
Freq.
Frequency Range
4.9
SSG
Small Signal Gain
9
VSWR
Input/ Output VSWR
P1dB
Typical
Max
Unit
5.9
GHz
11
dB
3.0:1/2.0:1
-
Pout at 1 dB Compression Point
+32
dBm
EVM
Error Vector Magnitude (see note 1)
2.5
%
OIP3
Output Third Order Intercept (see note 2)
47
dBm
Ids
DC Current
600
mA
Vgs
Gate Voltage
-0.7
Volt
Rth
Thermal Resistance Junction to Case
18
°C/W
Notes:
1.
2.
The output power is 25 dBm for 2.5% EVM and the test signal is 802.16, 256 carriers, 64 QAM with 2/3 coding
factor. The measured EVM includes the accumulated errors (1.6%) from the modulator and driver stages.
The output power per tone is 22 dBm and the tone separation is 20 MHz center at 5.5 GHz.
Absolute Maximum Ratings
MicroWave Technology, Inc., 4268 Solar Way, Fremont, CA 94538
510-651-6700 FAX 510-952-4000 WEB www.mwtinc.com
Data contained herein is subject to change without notice. All rights reserved © June 2016
WPS-495922-02
4.9 – 5.9 GHz Linear Power Amplifier
Data Sheet
Package Outline Diagram (Package 02)
P1dB vs Frequency
33
34
32
30
28
26
24
22
20
P1dB (dBm)
Output Power (dBm)
Pout vs Pin @ 5.5 GHz
32
31
30
10
12
14
16
18
20
22
24
4.9
5.1
Input Pow er (dBm )
Gain (dB)
Return Loss
(dB)
5.50
5.7
5.9
Return Loss vs Frequency
-5
-7
-9
-11
-13
-15
4.5
5.00
5.5
Frequency (GHz)
Gain vs Frequency
13.00
12.00
11.00
10.00
9.00
8.00
7.00
4.50
5.3
6.00
Frequency (GHz)
6.50
5
5.5
6
Frequency (GHz)
Input
MicroWave Technology, Inc., 4268 Solar Way, Fremont, CA 94538
510-651-6700 FAX 510-952-4000 WEB www.mwtinc.com
Data contained herein is subject to change without notice. All rights reserved ©
Output
6.5
WPS-495922-02
4.9 – 5.9 GHz Linear Power Amplifier
Data Sheet
S-parameters measured at Vdd=7.5V and Vg=-0.7V 25°C
Freq
(GHz)
4.50
4.60
4.70
4.80
4.90
5.00
5.10
5.20
5.30
5.40
5.50
5.60
5.70
5.80
5.90
6.00
6.10
6.20
6.30
6.40
6.50
S11
MAG
0.56
0.56
0.56
0.55
0.54
0.54
0.53
0.53
0.53
0.53
0.53
0.52
0.50
0.47
0.43
0.36
0.29
0.25
0.29
0.40
0.52
ANG
-84.22
-99.93
-115.24
-130.63
-146.05
-161.60
-177.34
166.08
149.64
133.22
117.33
101.70
85.80
69.30
51.20
28.61
-2.41
-47.53
-95.77
-130.47
-154.23
S21
MAG
4.02
4.02
3.95
4.05
4.06
4.01
4.02
3.96
3.94
3.90
3.91
3.83
3.78
3.72
3.70
3.66
3.57
3.39
3.12
2.80
2.47
ANG
-175.51
172.22
162.93
153.52
144.25
134.37
124.21
111.82
99.89
88.24
76.71
65.80
54.29
42.41
29.21
15.20
-0.23
-16.27
-32.21
-48.06
-63.21
S12
MAG
0.05
0.05
0.05
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.06
0.07
0.07
0.07
0.07
0.07
0.07
0.07
0.06
0.06
ANG
125.37
116.31
108.11
100.09
89.06
76.23
66.27
56.41
47.94
37.93
27.25
15.30
3.57
-9.28
-21.23
-34.21
-49.22
-64.77
-81.04
-97.23
-112.68
S22
MAG
0.50
0.48
0.46
0.44
0.42
0.40
0.37
0.35
0.32
0.29
0.27
0.25
0.23
0.22
0.22
0.23
0.26
0.30
0.34
0.38
0.41
MicroWave Technology, Inc., 4268 Solar Way, Fremont, CA 94538
510-651-6700 FAX 510-952-4000 WEB www.mwtinc.com
Data contained herein is subject to change without notice. All rights reserved ©
ANG
58.97
52.86
46.11
39.62
32.74
25.76
18.00
9.75
0.52
-9.67
-20.85
-33.30
-47.72
-64.15
-82.37
-101.50
-120.18
-137.91
-153.30
-166.87
-178.29
WPS-495922-02
4.9 – 5.9 GHz Linear Power Amplifier
Data Sheet
Application Note
The evaluation board material, shown in Figure 1, is Rogers
4003 material, 20 mil thick, and 2 oz copper weight. Through
holes with a diameter of 20 mils are spread uniformly over the
center pad for thermal relief and RF ground. It is recommended
that via holes be placed nearby the DC bias connector to
maintain ground continuity between the top layer and bottom
ground planes. Mounting holes near the unit will help secure
the board to the chassis, minimize ground current loops and
improve thermal conductivity in the absence of sweat soldering
the board to the chassis.
Figure 1 Evaluation board
Biasing with quarter-wave stubs at the gate and drain are shown in Figure 1. The impedance of the quarter wave
structures is cyclical with frequency. A RF short is observed at frequencies that are even multiples of quarterwavelength and open impedance is observed at frequencies that are odd multiples of a quarter-wavelength. A 56
ohm resistor is added in series to the gate bias. The effective impedance is increased which reduces the risk of
oscillations. The 56 ohm resistor is not shown in Figure 1. Through holes underneath the package is required to
connect the top and bottom grounds and to improve thermal conductivity. Typical large signal gain response, shown
in Figure 2, varies from 10 to 11 dB over the frequency range 4.9 to 5.9 GHz. The output IP3 response shown in
Figure 3 uses a two tone separation of 20 MHz at 5.1 and 5.9 GHz.
OIP3 vs Output Power
OIP3 (dBm)
Large Signal Gain
(dB)
Large Signal Gain Pin=18
dBm
13.0
12.0
11.0
10.0
9.0
8.0
7.0
49
48
47
46
45
44
43
42
14 15 16 17 18 19 20 21 22 23 24
4.5
5
5.5
6
Frequency (GHz)
Figure 2 Gain Response
6.5
Output Power per Tone (dBm)
5.1 GHz
Figure 3 OIP3
MicroWave Technology, Inc., 4268 Solar Way, Fremont, CA 94538
510-651-6700 FAX 510-952-4000 WEB www.mwtinc.com
Data contained herein is subject to change without notice. All rights reserved ©
5.9 GHz
WPS-495922-02
4.9 – 5.9 GHz Linear Power Amplifier
Data Sheet
Application Note (Con’t)
One of most stringent modulations for a linear amplifier is WiMAX 256 carriers, 64 QAM. The WiMAX test signals
were generated using the Rhode & Schwarz SMU200A modulator and the FSQ26 is used to analyze signal integrity.
An output power of 26 dBm is achieved for an error vector magnitude of 2.5% as shown in Figures 4 thru 6.
Frequenc y:
5 .1 GH z
Signal Level:
3 dBm
E xternal A tt:
0 dB
Sweep M ode:
C ontinuous
T rigger M ode:
Free Run
T rigger O ffs et:
-1 0 µs
Burs t T ype:
O FDM DL Burs t
M odulation:
6 4 Q A M 2 /3
N o O f Data Symbols :
1 /1 3 6 6
Res ult S ummary
N o. of Burs ts
66
M ean
Limit
M ax
Limit
U nit
E V M A ll C arriers
M in
2 .2 8
2 .4 9
3 .7 6
2 .7 7
3 .7 6
%
E V M Data C arriers
2 .2 8
2 .4 9
3 .7 6
2 .7 6
3 .7 6
%
E V M P ilot C arriers
1 .8 6
2 .3 6
2 .8 2
%
I Q O ffs et
2 .8 5
3 .2 4
3 .5 7
%
Gain I mbalanc e
1 .0 6
0 .8 2
0 .5 0
%
- 0 .0 2 4
0 .1 7 7
0 .3 9 2
°
Q uadrature E rror
C enter Frequenc y E rror
4 0 .6 8
1 3 2 .2 6
Symbol C loc k E rror
1 .2 6
7 .6 9
Burs t P ower
3 .1 0
3 .2 7
3 .4 3
dBm
C res t Fac tor
6 .3 7
6 .6 1
6 .8 3
dB
SS T iming
0 .0 0
0 .0 0
0 .0 0
%
...
...
...
RSSI
± 40800
±8 *
1 8 5 .8 6
± 40800
1 8 .5 8
±8
Hz
ppm
dBm
Figure 4 802.16, 256 carriers, 64QAM at 5.1 GHz, Pavg=26.3 dBm
MicroWave Technology, Inc., 4268 Solar Way, Fremont, CA 94538
510-651-6700 FAX 510-952-4000 WEB www.mwtinc.com
Data contained herein is subject to change without notice. All rights reserved ©
WPS-495922-02
4.9 – 5.9 GHz Linear Power Amplifier
Data Sheet
Application Note (Con’t)
Frequency:
5.9 GHz
Signal Level:
16.5 dBm
External A tt:
0 dB
Sweep Mode:
C ontinuous
Trigger Mode:
P ower
Trigger O ffset:
-10 µs
Burst Type:
O FDM DL Burst
Modulation:
64Q A M3/4
No O f Data Symbols:
4/2425
Res ult S ummary
No. of Bursts
2
*
Min
Mean
Limit
Max
Limit
Unit
EV M A ll C arriers
2 .0 6
2 .0 7
2.82
2 .0 8
2.82
%
EV M Data C arriers
2 .0 7
2 .0 8
2.82
2 .0 9
2.82
%
EV M P ilot C arriers
1 .9 0
1 .9 1
1 .9 2
%
IQ O ffset
0 .0 7
0 .1 0
0 .1 3
%
Gain Imbalance
0 .1 8
0 .0 8
- 0 .02
%
Q uadrature Error
0 .2 18
0 .2 3 8
0 .2 57
°
C enter Frequency Error
1 0 .71
1 0.9 6
± 47200
1 1 .21
± 47200
Symbol C lock Error
- 0 .0 0
0 .0 0
±8
0 .0 0
±8
Burst P ower
1 5 .32
1 5.3 4
1 5 .36
8 .5 3
8 .5 4
8 .5 4
1 7 .72
1 7.7 2
1 7 .72
C rest Factor
RSSI
RSSI Standard Deviation
C INR
- 3.8 7
4 1 .70
C INR Standard Deviation
4 1.7 0
Hz
ppm
dBm
dB
dBm
dB
4 1 .74
3 1.7 1
Figure 5 802.16 256 carriers, 64 QAM at 5.9 GHz, Pavg=25.2 dBm @ EVM=2%
MicroWave Technology, Inc., 4268 Solar Way, Fremont, CA 94538
510-651-6700 FAX 510-952-4000 WEB www.mwtinc.com
Data contained herein is subject to change without notice. All rights reserved ©
dB
dB
WPS-495922-02
4.9 – 5.9 GHz Linear Power Amplifier
Data Sheet
Application Note (Con’t)
Typical constellation response for 802.16 Pavg=26 dBm and 2.5% EVM
Frequency:
5.1 GHz
Signal Level:
1.9 dBm
External A tt:
0 dB
Sweep Mode:
Continuous
Trigger Mode:
Free Run
Trigger O ffset:
-10 µs
Burst Type:
O FDM DL Burst
Modulation:
64Q A M2/3
No O f Data Symbols:
1/1366
C apture Memory
1Ref
11.9 dBm
No of Samples
Capture Time
A tt/El
480001
15 ms
Gate
25.00 / 0.00 dB Burst
Marker 1
O ff
67 (0)
8.34 dBm
0s
8
0
-8
-16
-24
-32
-40
-48
-56
A
0.0000 ms
1.5000 ms/div
The test signal is 256
carriers, 64 QAM with 2/3
coding factor.
15.0000 ms
C onstellation vs Symbol
Marker 1
Q uadrature - 7.0274
Inphase
2.9146
7.00
Figure 6 WiMax
constellation Pavg=26 dBm
at 5.1 GHz for 2.5% EVM for
all carriers.
B
The signal power versus
time is shown in yellow.
The constellation shown in
represents 64 QAM.
1
-7.00
-7.00
C apture Memory
1Ref
11.5 dBm
No of Samples
C apture Time
A tt/El
7.00
480001
15 ms
Gate
25.00 / 0.00 dB Burst
Marker 1
O ff
66 (0)
7.52 dBm
0s
8
0
-8
-16
-24
-32
-40
-48
-56
*
A
0.0000 ms
1.5000 ms/div
Figure 7 WiMax
constellation Pavg= 25.8
dBm at 5.9 GHz. for 2.5%
EVM.
15.0000 ms
C onstellation vs Symbol
Marker 1
7.00
Q uadrature - 7.0087
Inphase
3.0575
*
B
1
-7.00
-7.00
7.00
MicroWave Technology, Inc., 4268 Solar Way, Fremont, CA 94538
510-651-6700 FAX 510-952-4000 WEB www.mwtinc.com
Data contained herein is subject to change without notice. All rights reserved ©