Anritsu MA2442B – High Accuracy Diode Sensor

The Anritsu MA2442B is a high-accuracy diode power sensor engineered for precise RF power measurements from 10 MHz to 18 GHz. Operating across an 87 dB dynamic range with linearity better than 1.8%, it delivers measurement uncertainty suitable for calibration, quality assurance, and general RF testing. The sensor incorporates internal EEPROM calibration storage indexed by frequency, power, and temperature, enabling automatic correction and interpolation by compatible power meters.

A built-in 3 dB attenuator optimizes accuracy across the full dynamic range while improved matching circuits enhance return loss performance.

Technical Specifications

• Frequency range: 10 MHz to 18 GHz


• Dynamic range: 87 dB


• Power measurement range: −67 dBm to +20 dBm


• Sensor linearity: Better than 1.8% at <18 GHz


• Rise time: <0.004 ms


• Temperature accuracy: <1.0% (5 to 50 °C)


• RF connector: Type N male


• Dimensions: 73 mm × 52 mm × 29 mm

Key Features

• Internal EEPROM stores calibration data as a function of frequency, power, and temperature


• Built-in 3 dB attenuator for optimized measurement accuracy over large dynamic range


• Improved matching circuit reduces return loss


• Fast response time supports dynamic power measurement applications


• Temperature-compensated performance across standard operating range

Typical Applications

• RF power calibration and metrology


• Manufacturing quality assurance testing


• General RF power measurement across microwave frequencies


• Wideband frequency characterization

Compatibility & Integration The MA2442B integrates directly with the Anritsu ML2430A Series Power Meters, which access stored calibration data for real-time measurement correction. Measurement uncertainty can be calculated using the Anritsu Power Measurement Uncertainty Calculator, accounting for source impedance, signal frequency, and power level.