Bird - The RF Experts
4028 Series

Directional Thruline RF Power Sensors

 

High Accuracy for Precision High Power Applications


The Bird 4028 Series RF Directional Thruline Power Sensors are designed specifically for use for use in high power LCD, TFT and Solar processing as well as other precision high power applications. Because accuracy is critical, these sensors are capable of ±2% accuracy at the calibrated frequency and power level which can improve accuracy and long-term repeatability for significant improvements on your process yields.

Multiple sensor models are available for measurement applications from 1 kW to 25 kW to over a 250 kHz to 30 MHz frequency range. Calibration is traceable to the National Institute of Standards and Technology (NIST), providing additional confidence in sensor measurement.

PRODUCT FEATURES
  • Specifically designed for for use in high power LCD, TFT and Solar processing and other precision high power applications up to 50 kW
  • ±2% accuracy at specified frequencies and power levels minimizing poor production yields
  • Models do not need to be field calibrated before use and only need to be calibrated once every year
  • Plug and Play with the 4421A Series Multifunction Power Meter
  • Dozens of connector options available
  • Calibration traceable to the National Institute of Standards and Technology
FOR USE WITH
  • 4421A Multifunction Power Meters
  • SCC8 Calibration Cart

MODEL SELECTIONS

Model Freq. Range RF Power Cal. Freq. (Typical)
4028A250K 250 - 400 kHz 1.0 - 20 kW 250, 400 kHz
4028A400K 400 - 550 kHz 1.0 - 20 kW 400 kHz
4028A2M 1.5 - 2.5 MHz 1.0 - 25 kW 1.8, 2.0, 2.17 MHz
4028A3M 2.5 - 3.5 MHz 1.0 - 25 kW 2.5, 3.2, 3.5 MHz
4028A4M 3.5 - 4.5 MHz 1.0 - 25 kW 3.5, 4.0 MHz
4028A10M 10 - 15 MHz 1.0 - 25 kW 10.0, 13.56, 15.0 MHz
4028A25M 25 - 30 MHz 1.0 - 25 kW 25.76, 27.12, 28.48 MHz
4028B3M 2.5 - 4 MHz 1.0 - 25 kW 2.5, 3.2, 3.5 MHz
4028B10M 10 - 15 MHz 1.0 - 25 kW 10.0, 13.56, 15.0 MHz
4028C10M 10 - 15 MHz 500W - 50kW 10.0, 13.56, 15.0 MHz
product specifications:
Item No
4028 Series
Item Name
2% Accurate, Precision Power Sensors
Frequency Range
See Table
RF Power Range
See Table
Accuracy
± 2.0% (2 σ)

±2% at calibration frequencies and power levels
±3% at other frequency and power levels
Add 2% to uncertainty outside 25 ± 10 °C

Accuracy, RFL
Calculated from Fwd accuracy + (Fwd Power/10^ {directivity/10})

Accuracy, VSWR
Calculated from Fwd and Rfl power (VSWR = [1+Sqrt(Pr/Pf)] / [1-Sqrt(Pr/Pf)]

Accuracy, Outside Calibration Power and Frequency: ± 3.0% (2 σ)
VSWR
1.05:1 (max)
Max Allowable Terminating VSWR: 2.00:1
Directivity
28 dB (min.)
Insertion Loss
0.05 dB (max), with female 7-16 DIN connectors
Impedance Ω
50 Ohms, nominal
Speed
2 readings per second
Repeatability
Multiple Measurements, Single Sensor
±0.3% (95% c.l.), with female 7-16 DIN connectors
Calibration Power Level
1.7 kW
Connectors
A Series: Customer specified
B Series: 1 5/8” EIA Flanged
C Series: 3 1/8” EIA Flanged

Sensor Interface: Latch-n-Lock
System
Recommended Calibration Interval: 1 year

Power Supply
Supplied by power meter via sensor cable
Temperature
Operating: 0 to 50 °C (32 to 122 °F)
Storage: -20 to 70 °C (-4 to 158 °F)
Humidity
95% non-condensing
Altitude
10,000 ft. (3,000 m) max.
Size
A Series: (without connectors)
4.7” x 3.2” x 3.8” (120 x 82 x 97 mm)
B Series: 6.8” x 3.5” x 4.8” (171 x 89 x 121 mm)
C Series: 8.0” x 5.2” x 6.4” (203 x 131 x 162 mm)
Weight
A Series: 1.7 lbs (.8 kg)
B Series: 3.3 lbs (1.5 kg)
C Series: 7.3 lbs (3.3 kg)
compatible devices:
4421A
Multifunction Power Meter
SCC8 Series
High Power Calibration Cart
4421B540-2
Interface Module
4421-038
Latch-N-Lok Interface Cable