Bird Technologies 4028 Datasheet
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RF Directional Thruline
Precision Power Sensors
4028 Series
Bird’s® 4028 Series Power Sensors are a family of high accuracy sensors for use in high power LCD, TFT
and Solar processing and other precision high power applications. Intended for use with the industry
standard Bird Precision Laboratory Power Meter Model 4421, these products can provide a threefold
improvement in long-term unit-to-unit accuracy.
- Achieve tighter, more consistent RF power measurements for improved yield.
- ±2% accuracy at specified calibration frequencies and power levels.
- Direct, plug-in operation with the industry standard Bird Model 4421 RF Power Meter.
- Multiple sensors provide for measurement of 1 kW to 25 kW over a 250 kHz to 30 MHz frequency range.
PROBLEMS } SOLUTIONS
Very high power RF measurements required
} Measures power levels up to 50kW
Need very high degree of accuracy
} Capable of 2% accuracy
Require custom connectors
} 4028A Series sensor can be congured with a wide range
of connectors.
APPLICATIONS
Periodically, power delivery systems used in high power LCD,
TTA and Solar processes, as well as other precision applications,
must be calibrated against an accurate RF power standard.
This calibration is used to correct for any drift that may occur
in the system. Integrating a 4028 Series Power sensor in your
calibration process may improve accuracy and long-term
repeatability that can yield signicant improvements on your
process yields.
RF Directional ThrulinefiPrecision Power Sensors
4028 Series
SPECIFICATIONS
VSWR, Max. 1.05:1
Insertion Loss, Max. 0.05 dB (with female 7-16 DIN connectors)
Directivity, Min. 28 dB
Connectors A Series
B Series
C Series
Impedanc, Nominal 50 Ohms
Max. Allowable Terminating VSWR 2.00:1
Calibration Technique 1 yearsensor.
Accuracy, R = Fwd accuracy + (Fwd Power/ 10^{directivity/10})
Accuracy, VSWR Calculated from Fwd and R power (VSWR = [1+Sqrt(Pr/PF)] / [1-Sqrt(Pr/Pf ) / [1-Sqrt (Pr/Pf)])
Sampling Rate, Nominal 2 readings / second
Operating Power Supplied by power meter via sensor cable
Temp, Operating 0 to 50 °C (32 to 122 °F)
Temp, Storage -20 to +70 °C (-4 to + 158 °F)
Humidity, Max. 95% non-condensing
Altitude, Max. 10,000 ft (3,000 m)
Repeatability, multiple
measurements, single sensor
Dimensions, Nominal A Series
B Series
C Series
Weight, Nominal A Series
B Series
C Series
Customer specied from QC connector, appropriate for frequency and power.
1 5/8” EIA Flanged
3 1/8” EIA Flanged
± 0.3% (95% c.l.) (with female 7-16 DIN connectors)
4.7”L x 3.2”W x 3.8”H (120 x 82 x97 mm) (without connectors)
6.8”L x 3.5”W x 4.8”H (171 x 89 x 121 mm)
8.0”L x 5.2”W x 6.4” H (203 x 131 x 162 mm)
1.7 lbs (.8 kg)
3.3 lbs (1.5 kg)
7.3 lbs (3.3 kg)
Model Freq Range RF Power Calibration Freq., Typical Calibration
4028A250K 250-400 kHz 1.0-20 kW 250, 400 kHz 1.7 kW ± 2.0% (2 σ) ± 3.0% (2 σ)
4028A400K 400-550 kHz 1.0-20 kW 400 kHz 1.7 kW ± 2.0% (2 σ) ± 3.0% (2 σ)
4028A2M 1.5-2.5 MHz 1.0-25 kW 1.8, 2.0, 2.17 MHz 1.7 kW ± 2.0% (2 σ) ± 3.0% (2 σ)
4028A3M 2.5-3.5 MHz 1.0-25 kW 2.5, 3.2, 3.5 MHz 1.7 kW ± 2.0% (2 σ) ± 3.0% (2 σ)
4028A4M 3.5-4.5 MHz 1.0-25 kW 3.5, 4.0 MHz 1.7 kW ± 2.0% (2 σ) ± 3.0% (2 σ)
4028A10M 10-15 MHz 1.0-25 kW 10.0, 13.56, 15.0 MHz 1.7 kW ± 2.0% (2 σ) ± 3.0% (2 σ)
4028A25M 25-30 MHz 1.0-25 kW 25.76, 27.12, 28.48 MHz 1.7 kW ± 2.0% (2 σ) ± 3.0% (2 σ)
4028B3M 2.5-4 MHz 1.0-25 kW 2.5, 3.2, 3.5 MHz 1.7 kW ± 2.0% (2 σ) ± 3.0% (2 σ)
4028B10M 10-15 MHz 1.0-25 kW 10.0, 13.56, 15.0 MHz 1.7 kW ± 2.0% (2 σ) ± 3.0% (2 σ)
4028C10M 10-15 MHz 500 W-50 kW 10.0, 13.56, 15.0 MHz 1.7 kW ± 2.0% (2 σ) ± 3.0% (2 σ)
30303 Aurora Rd. Solon, OH 44139 866.695.4569 www.bird-technologies.com
PowerSensor_4028-11282012
Power, Typical
Accuracy* Accuracy, Outside Cal.*
Power and Frequency
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