Anritsu MA24 Series User manual

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MA24XX
SERIES
POWER SENSORS
OPERATION MANUAL
P/N: 10585-00004
REVISION: M
PRINTED: NOVEMBER 2005
COPYRIGHT ã1998-2005 ANRITSU CO.
490 JARVIS DRIVE
MORGAN HILL, CA 95037-2809

WARRANTY
The ANRITSU product(s) listed on the title page is (are) warranted
against defects in materials and workmanship for one year from the
date of shipment.
ANRITSU's obligation covers repairing or replacing products which
prove to be defective during the warranty period. Buyers shall
prepay transportation charges for equipment returned to ANRITSU
for warranty repairs. Obligation is limited to the original purchaser.
ANRITSU is not liable for consequential damages.
LIMITATION OF WARRANTY
The foregoing warranty does not apply to ANRITSU connectors that
have failed due to normal wear. Also, the warranty does not apply to
defects resulting from improper or inadequate maintenance by the
Buyer, unauthorized modification or misuse, or operation outside of
the environmental specifications of the product. No other warranty is
expressed or implied, and the remedies provided herein are the
Buyer's sole and exclusive remedies.
TRADEMARK ACKNOWLEDGMENTS
V Connector and K Connector are registered trademarks of
ANRITSU Company.
NOTICE
ANRITSU Company has prepared this manual for use by ANRITSU
Company personnel and customers as a guide for the proper
installation, operation and maintenance of ANRITSU Company
equipment and computer programs. The drawings, specifications,
and information contained herein are the property of ANRITSU
Company, and any unauthorized use or disclosure of these
drawings, specifications, and information is prohibited; they shall not
be reproduced, copied, or used in whole or in part as the basis for
manufacture or sale of the equipment or software programs without
the prior written consent of ANRITSU Company.

CE COMPLIANCE
Product Name: Power Sensor
Model Number: MA2421A, MA2421D, MA2422A, MA2422B,
MA2422D, MA2468A, MA2468B, MA2468D,
MA2481A, MA2481B, MA2481D, MA2469B,
MA2469C, MA2469D, MA2472A, MA2472B,
MA2472D, MA2482A, MA2482D, MA2442A,
MA2442B, MA2442D, MA2490A, MA2491A,
MA2423A, MA2423B, MA2423D, MA2473A,
MA2473D, MA2424A, MA2424B, MA2424D,
MA2474A, MA2474D, MA2444A, MA2444D,
MA2411A, MA2411B, MA2425A, MA2425B,
MA2425D, MA2475A, MA2475D, MA2445A,
MA2445D, MA2443A, MA2443D,
These products were shown to be compliant, with the requirements of the following
directive, when connected and used with a Power Meter ML24XX.
EMC Directive 89/336/EEC as amended by Council Directive
92/31/EEC & 93/68/EEC
Electromagnetic Interference: EN61326-1:1997
Emissions CISPR 11:1990/EN55011:1991 Group 1 Class A
Immunity: EN 61000-4-2:1995 - 4kV CD, 8kV AD
EN 61000-4-3:1997 - 3V/m
EN 61000-4-6:1997 - 3V
Reference:
DECLARATION OF CONFORMITY
Operator Manual: ML24XX Series Power Meter (10585-00001)
Product Name: Power Meter
Model Number: ML2437A, ML2438A, ML2407A, ML2408A,
ML2487A, ML2488A

Table of Contents
INTRODUCTION ............................1
GENERAL DESCRIPTION .......................1
PERFORMANCE SPECIFICATIONS ..................3
SENSOR PERFORMANCE TESTS ..................10
General Information .........................10
SWR (Reflection Coefficient) Performance Test ..........11
Sensitivity Performance Test .....................18
Power Measurement Uncertainty ..................23
Sensor Calibration Factor Uncertainty ................25
POWER SENSOR CARE AND HANDLING .............29
Beware of Destructive Pin Depth of Mating Connectors ......29
Avoid Over Torquing Connectors ..................31
Avoid Mechanical Shock.......................31
Avoid Applying Excessive Power ..................31
Cleaning Connectors .........................31
i

Figure 1. Typical MA24XX Series Power Sensors

INTRODUCTION
This manual provides descriptions and specifications for Anritsu MA24XX Se-
ries Power Sensors (Figure 1). It also includes care and handling information for
the power sensors.
GENERAL DESCRIPTION
The MA24XX Series Power Sensors consist of MA247X Series Power Sensors,
MA246X Series Power Sensors, MA248X Series Universal Power Sensors,
MA242X Series Thermal Power Sensors, MA244X Series High Accuracy
Power Sensors, MA249XX Wide Bandwidth Power Sensors, and MA241X
Pulse Power Sensors.
All models, except the MA246X, MA249X, and MA241X Series Power Sen-
sors, can be used with the ML243X, ML248X, and ML249X Series Power Me-
ters. MA246X Series Power Sensors are used with the ML2400A Series Power
Meter only.
NOTE
Anritsu ML2430A and ML2400A Power Meters must have meter firm-
ware revision 3.10 or higher to be used with Anritsu MA24xxD Series
power sensors.
The MA249X and MA241X Series Power Sensors are used with the ML248X or
ML249X Series Power Meters. The MA241X Series Power Sensors require the
power meter be equipped with 1 GHz Calibrator (Option 15). For 50 MHz BW
pulse measurements, use the MA2411B power sensor with the ML249X power
meter.
Models in the MA247X, MA242X, and MA244X series cover the 10 MHz to
50 GHz frequency range and have N, K, and V type RF connectors. MA246X
Sensors cover the 10 MHz to 18 GHz range, and MA248X Sensors cover the 10
MHz to 18 GHz range. MA249X series Sensors cover the 50 MHz to 18 GHz
range. MA241X series Sensors cover the 300 MHz to 40 GHz range. MA246X,
MA248X, and MA249X Sensors have N-type RF connectors. MA241X Sensors
have K-type RF connectors.
The 90 dB dynamic range MA247X Series Power Sensors provide stable power
readings to –70 dBm. The 87 dB dynamic range MA244X Series High Accuracy
Power Sensors contain an additional matching circuit to improve return loss per-
formance.
MA242X Series Thermal Power Sensors provide measuring speeds to 4 ms rise
and fall times in addition to exceptional return loss performance.
1

MA246X/C power sensors have fast 1 ms rise and fall times needed for CDMA
measurements.
MA248X Universal sensors measure average power of modulated signals such
as WDMA, multi-tone, etc.
MA249X Wide Bandwidth Sensors have a 20 MHz bandwidth needed for accu-
rate multicarrier WCDMA measurements.
MA241X Pulse Sensors havea7nsrise time when used with the ML249X Se-
ries Power Meter, useful for narrow pulse width measurements.
All MA24XX Series Power Sensors contain internal EEPROMs for storage of
calibration data as a function of frequency, power, and temperature. This allows
the power meter to interpolate and correct readings automatically.
2

PERFORMANCE SPECIFICATIONS
Performance specifications for the MA24XX Series Power Sensor are listed in
Table 1 (pages 3 through 9).
3
Power Sensors
Frequency Range:
MA2472A/B/D
MA2473A/D
MA2474A/D
MA2475A/D
10 MHz to 18 GHz
10 MHz to 32 GHz
10 MHz to 40 GHz
10 MHz to 50 GHz
Dynamic Range: –70 dBm to +20 dBm
SWR: <1.17; 10 MHz to 150 MHz (MA2472B/C only)
<1.90; 10 MHz to 50 MHz
<1.17; 50 MHz to 150 MHz
<1.12; 150 MHz to 2 GHz
<1.22; 2 GHz to 12.4 GHz
<1.25; 12.4 GHz to 18 GHz
<1.35; 18 GHz to 32 GHz
<1.50; 32 GHz to 40 GHz
<1.63; 40 GHz to 50 GHz
Rise Time*: <0.004 ms
Sensor Linearity: MA2475A All others
–70 - +15 dBm +15 - +20 dBm –70 - +20 dBm
1.8% <18 GHz
2.5% <40 GHz
3.5% <50 GHz
4.8% <18 GHz
5.5% <40 GHz
6.5% <50 GHz
1.8% <18 GHz
2.5% <40 GHz
RF Connector**:
MA2472A/B/D
MA2473A/D
MA2474A/D
MA2475A/D
Type:
N (m)
K (m)
K (m)
V (m)
Pin Depth (inches):
.210/.207
+.000/–.002
+.000/–.002
+.000/–.002
Maximum Input Power: 23 dBm, continuous
30 dBm, 1ms peak, ±20 Vdc
Temperature Accuracy***: <1.0%, <40 GHz
<1.5%. <50 GHz
Table 1. MA24XX Series Power Sensor Specifications (1 of 7)

4
Thermal Sensors
Frequency Range:
MA2421A/D
MA2422A/B/D
MA2423A/B/D
MA2424A/B/D
MA2425A/B/D
100 KHz to 18 GHz
10 MHz to 18 GHz
10 MHz to 32 GHz
10 MHz to 40 GHz
10 MHz to 50 GHz
Dynamic Range: –30 dBm to +20 dBm
SWR: <1.90; 10 MHz to 50 MHz (MA2421A/D <1.10)
<1.17; 50 MHz to 150 MHz (MA2421A/D <1.10)
<1.10; 150 MHz to 2 GHz
<1.15; 2 GHz to 12.4 GHz
<1.20; 12.4 GHz to 18 GHz
<1.25; 18 GHz to 32 GHz
<1.30; 32 GHz to 40 GHz
<1.40; 40 GHz to 50 GHz
Rise Time*: <4.0 ms
Sensor Linearity: 1.3%, <18 GHz
1.5%. <40 GHz
RF Connectors**:
MA2421A/D
MA2422A/B/D
MA2423A/B/D
MA2424A/B/D
MA2425A/B/D
Type:
N (m)
N (m)
K (m)
K (m)
V (m)
Pin Depth (inches):
.210/.207
.210/.207
+.000/–.002
+.000/–.002
+.000/–.002
Maximum Input Power: 24 dBm, continuous
30 dBm, 1ms peak, ±2.2 Vdc
Temperature Accuracy***: <1.0%
Table 1. MA24XX Series Power Sensor Specifications (2 of 7)

5
High Accuracy Sensors
Frequency Range:
MA2442A/B/D
MA2444A/D
MA2445A/D
10 MHz to 18 GHz
10 MHz to 40 GHz
10 MHz to 50 GHz
Dynamic Range: –67 dBm to +20 dBm
SWR: <1.17; 10 MHz to 150 MHz (MA2442B only)
<1.90; 10 MHz to 50 MHz
<1.17; 50 MHz to 150 MHz
<1.08; 150 MHz to 2 GHz
<1.16; 2 GHz to 12.4 GHz
<1.21; 12.4 GHz to 18 GHz
<1.29; 18 GHz to 32 GHz
<1.44; 32 GHz to 40 GHz
<1.50; 40 GHz to 50 GHz
Rise Time*: <0.004 ms
Sensor Linearity: MA2445A All others
–67 - +15 dBm +15 - +20 dBm –67 - +20 dBm
1.8% <18 GHz
2.5% <40 GHz
3.5% <50 GHz
2.8% <18 GHz
3.5% <40 GHz
4.5% <50 GHz
1.8% <18 GHz
2.5% <40 GHz
RF Connector**:
MA2442A/D
MA2444A/D
MA2445A/D
Type:
N (m)
K (m)
V (m)
Pin Depth (inches):
.210/.207
+.000/–.002
+.000/–.002
Maximum Input Power: 23 dBm, continuous
30 dBm, 1ms peak, ±20 Vdc
Temperature Accuracy***: <1.0%, <40 GHz
<1.5%, <50 GHz
Table 1. MA24XX Series Power Sensor Specifications (3 of 7)

NOTE
Anritsu ML2400 and ML2430 Power Meters must have meter firm-
ware revision 3.10 or higher when used with Anritsu MA24xxD Series
power sensors.
6
CDMA Power Sensor
(ML2400A Series Power Meter only)
Frequency Range:
MA2468A/B/D ****
MA2469B/C/D ****
10 MHz to 6 GHz
10 MHz to 18 GHz
Dynamic Range: CW: –60 dBm to +20 dBm
SWR: <1.17; 10 MHz to 150 MHz (MA2468B/MA2569C only)
<1.90; 10 MHz to 50 MHz
<1.17; 50 MHz to 150 MHz
<1.12; 150 MHz to 2 GHz
<1.22; 2 GHz to 12.4 GHz
<1.25; 12.4 GHz to 18 GHz
Rise Time*: <0.001 ms
Sensor Linearity: CW: <1.8%
RF Connectors**:
MA2468A/B/D
MA2469B/C/D
Type:
N (m)
N (m)
Pin Depth (inches):
.210/.207
.210/.207
Maximum Input Power: 23 dBm, continuous
30 dBm, 1ms peak, ±20 Vdc
Temperature Accuracy***: <1.0%
Table 1. MA24XX Series Power Sensor Specifications (4 of 7)

7
Universal Power Sensor
Frequency Range:
MA2481B/D
MA2482A/D
10 MHz to 6 GHz
10 MHz to 18 GHz
Dynamic Range: CW: –60 dBm to +20 dBm
SWR: <1.17; 10 MHz to 150 MHz
<1.12; 150 MHz to 2 GHz
<1.22; 2 GHz to 12.4 GHz
<1.25; 12.4 GHz to 18 GHz
Sensor Linearity: < 3% 10 MHz to 6 GHz
< 3.5% 6 GHz to 18 GHz
(<1.8% CW with Option 1)
RF Connectors**: Type:
N (m)
Pin Depth (inches):
.210/.207
Maximum Input Power: 26 dBm, CW
35 dBm, 1ms peak, ±20 Vdc
Temp. Accuracy*****: <1.0%
Table 1. MA24XX Series Power Sensor Specifications (5 of 7)

8
Pulse Power Sensor
(ML248X Series Power Meter with Option 15, 1 GHz Calibration
ML249X Series Power Meter)
Frequency Range:
MA2411A/B**** 300 MHz to 40 GHz
Dynamic Range: CW: –20 dBm to +20 dBm
SWR: <1.15; 300 MHz to 2.5 GHz
<1.35; 2.5 GHz to 26 GHz
<1.5; 26 GHz to 40 GHz
Rise Time:8 ns typical, 12 ns maximum
Sensor Linearity: < 4.5% 300 MHz to 18 GHz
< 7% 18 GHz to 40 GHz
RF Connectors**: Type:
K (m)
Pin Depth (inches):
+.000/–.002
Maximum Input Power: 23 dBm, continuous
30 dBm, 1ms peak, ±20 Vdc
Temp. Accuracy******: <2.0%
Table 1. MA2411X Series Power Sensor Specifications (6 of 7)

9
Wide Bandwidth Power Sensor
(ML2480 Series Power Meter only)
Frequency Range:
MA2490A****
MA2491A****
50 MHz to 8 GHz
30 MHz to 18 GHz
Dynamic Range: CW: –60 dBm to +20 dBm
SWR: <1.17; 50 MHz to 150 MHz
<1.12; 150 MHz to 2.5 GHz
<1.22; 2.5 GHz to 12.4 GHz
<1.25; 12.4 GHz to 18 GHz
Rise Time: 18 ns maximum
Sensor Linearity: < 7% 50 MHz to 300 MHz
< 3.5% 300 MHz to 18 GHz
RF Connectors**: Type:
N (m)
Pin Depth (inches):
.210/.207
Maximum Input Power: 23 dBm, continuous
30 dBm, 1ms peak, ±20 Vdc
Temp. Accuracy******: <1.0%
* 0.0 dBm, room temperature
** Each MA24XXX-Series power sensor incorporates a precision RF connector with a hexagon
coupling nut for use with an industry standard torque wrench.
*** 5°Cto50°C
**** MA246X sensors must use the ML2400A Series Power Meter only. MA249X sensors must use
the ML2480 Series Power Meter only. MA241X sensors must use the ML2480 power meter with Op-
tion 15, 1 GHz Calibrator, installed.
***** 15°Cto35°C
****** 10°Cto45°C
10 dBm, 25°C, ML249X Series Power Meter
 10 dBm, 25°C, ML248X Series Power Meter
Table 1. MA249XX Series Power Sensor Specifications (7 of 7)

SENSOR PERFORMANCE TESTS
General Information
Anritsu sensors are classified into three general types:
·MA242X Thermal Sensors
·MA247X, MA244X, MA246X, MA249X, and MA241X
Diode Sensors
·MA248X Universal Sensors
All the above sensors have one common function: for a given signal frequency,
they translate a sensed input power into an output voltage. The Anritsu
ML24XX-Series power meters interpret the sensor voltages with signal frequen-
cies and output correct power readings.
Both diode sensors and thermal sensors have a single power sensing element.
Therefore, they have only one voltage versus power relationship. The universal
sensors have three power sensing elements, and they have three sets of voltage
versus power relationships.
The most common cause of power sensor problems is excess input power. Ap-
plying power exceeding the labeled damage levels will damage the sensing ele-
ment(s) such that its voltage versus power relationship(s) is changed resulting in
erroneous power readings.
The other most common cause of power sensor problems is damaged connec-
tors. Connections should be tightened with the proper torque wrench applied to
the coupling nut only. Any attempt to torque or un-torque a connection using the
body of the power sensor may result in connector damage, or in the connector
becoming unthreaded from the body. Since the connector-to-body threads have
thread-locking compound applied, slight unthreading of the connector from the
body may not be physically apparent. Unthreaded or damaged connectors will
change the voltage versus power relationship(s). These changes are usually man-
ifested as a poor input match.
Any suspect power sensor should have two parameters tested: input match and
sensitivity. There are no user-serviceable parts inside the power sensors. Contact
your local Anritsu Service Center and return the power sensor with a detailed
description of the observed problem(s).
10

SWR (Reflection Coefficient) Performance Test
The maximum SWR values are listed in the Performance Specifications section
of this manual. The uncertainty of the SWR test equipment will affect actual
measured values. See the following tables for examples on how measurement
system uncertainty can affect Expected Maximum Reflection Coefficient when
using the Anritsu 37000 Vector Analyzer and 54000 Scalar Measurement sys-
tems.
Follow the manufacturers S11 (or return-loss) calibration procedure to perform
calibration on a network analyzer. Connect the power sensor to the network ana-
lyzer test port, and measure the power sensor input match. Usually, network an-
alyzers measure matches in terms of return-loss in dB. The return loss to
reflection coefficient conversion equations are:
r=10
-RL/20
RL = –20 log r
where
RL = Return Loss in dB
r= Reflection coefficient
Record the measured data in the tables on the next pages in the Actual Mea-
surement column. The Actual Measurement should be smaller than the Ex-
pected Maximum Reflection Coefficient.
NOTE:
The Expected Maximum Reflection Coefficient is equal to the
sensor reflection coefficient specification plus the measure-
ment system coefficient uncertainty.
If the Actual Measurement reflection coefficient is larger than the Expected
Maximum Reflection Coefficient, then the power sensor may be defective.
There are no user-serviceable parts inside the power sensors. Contact your local
Anritsu Service Center and return the power sensor with a detailed description
of the observed problem(s).
11

Anritsu MA247XA Power Sensors
Frequency
37000 System
Reflection Coeff.
Uncertainty
Actual Measurement
Expected Maximum
Reflection Coeff.
10 MHz – 50 MHz 0.01010.310 + 0.010 = 0.320
50 MHz – 150 MHz 0.012 0.078 + 0.012 = 0.090
0.15 GHz – 2 GHz 0.012 0.057 + 0.012 = 0.069
2 GHz – 12.4 GHz 0.013 0.099 + 0.013 = 0.112
12.4 GHz – 18 GHz 0.014 0.111 + 0.014 = 0.125
18 GHz – 32 GHz 0.015 0.149 + 0.015 = 0.164
32 GHz – 40 GHz 0.017 0.200 + 0.017 = 0.217
40 GHz – 50 GHz 0.020 0.240 + 0.020 = 0.260
110 MHz - 50 MHz uncertainty is from 54000 Scalar Measurement System
Anritsu Power Sensor MA2472B/D
Frequency
37000 System
Reflection Coeff.
Uncertainty
Actual Measurement
Expected Maximum
Reflection Coeff.
10 MHz – 50 MHz 0.01010.078 + 0.010 = 0.088
50 MHz – 150 MHz 0.012 0.078 + 0.012 = 0.090
0.15 GHz – 2 GHz 0.012 0.057 + 0.012 = 0.069
2 GHz – 12.4 GHz 0.013 0.099 + 0.013 = 0.112
12.4 GHz – 18 GHz 0.014 0.111 + 0.014 = 0.125
110 MHz - 50 MHz uncertainty is from 54000 Scalar Measurement System
12

Anritsu MA242X Power Sensors
Frequency
37000 System
Reflection Coeff.
Uncertainty
Actual Measurement
Expected Maximum
Reflection Coeff.
10 MHz – 50 MHz 0.01010.310 + 0.010 = 0.320
50 MHz – 150 MHz 0.012 0.078 + 0.012 = 0.090
0.15 GHz – 2 GHz 0.012 0.048 + 0.012 = 0.060
2 GHz – 12.4 GHz 0.013 0.070 + 0.013 = 0.083
12.4 GHz – 18 GHz 0.014 0.091 + 0.014 = 0.105
18 GHz – 32 GHz 0.015 0.111 + 0.015 = 0.126
32 GHz – 40 GHz 0.017 0.130 + 0.017 = 0.147
40 GHz – 50 GHz 0.020 .167 + 0.020 = 0.187
110 MHz - 50 MHz uncertainty is from 54000 Scalar Measurement System
Anritsu MA2421A/D Power Sensor
Frequency
37000 System
Reflection Coeff.
Uncertainty
Actual Measurement
Expected Maximum
Reflection Coeff.
10 MHz – 50 MHz 0.01010.048 + 0.010 = 0.058
50 MHz – 150 MHz 0.012 0.048 + 0.012 = 0.060
0.15 GHz – 2 GHz 0.012 0.048 + 0.012 = 0.060
2 GHz – 12.4 GHz 0.013 0.070 + 0.013 = 0.083
12.4 GHz – 18 GHz 0.014 0.091 + 0.014 = 0.105
18 GHz – 32 GHz 0.015 0.111 + 0.015 = 0.126
32 GHz – 40 GHz 0.017 0.130 + 0.017 = 0.147
40 GHz – 50 GHz 0.020 0.167 + 0.020 = 0.187
110 MHz – 50 MHz uncertainty is from Anritsu Network Analyzer MS4662A
13