Key Features:

  • Frequency Range: 10 MHz to 26.5 GHz
  • Dual Output: Ref and Cal ports for time-domain calibrated RF measurements
  • Stable Output: Flat amplitude response and precise phase calibration
  • Broadband Input: Compatible with external synthesizers for flexibility
  • USB Powered: Convenient 5VDC / 200mA power supply

Applications:

  • Waveform Engineering: Used for optimizing power efficiency and minimizing consumption in amplifiers, including Class F and inverse Class F operations.
  • RF Transistor Modeling: Enables phase-calibrated measurements for Enhanced Poly-Harmonic Distortion (EPHD) modeling.
  • EMC Testing: Provides a reliable signal reference for efficient EMC testing and calibration.

Large Signal Analysis & Waveform Engineering

The AMCAD wideband comb generator has been developed for the characterization of nonlinear RF devices (transistors, amplifiers), enabling the measurement of the absolute phase of the harmonic content of a signal and providing waveform engineering capabilities in time-domain load-pull setups.

Waveform engineering can be used to minimize power consumption and optimize the power-added efficiency of amplifiers operating in switch-mode classes such as Class F or inverse Class F.

This comb generator allows for accurate phase-calibrated measurements of harmonic signals when used with a Vector Network Analyzer (VNA), enabling true RF waveform measurements at the device under test (DUT) reference plane.

RF Transistor EPHD Behavioral Modeling

The RF measurements of magnitude and phase-calibrated harmonic signals can be used to extract transistors’ Enhanced Poly-Harmonic Distortion (EPHD) models.

By using harmonic phase calibration and harmonic impedance control, the comb generator enables the generation of time-domain load-pull data that can be used to extract a transistor model directly from large-signal measurements.

EMC Testing

The HPR727A comb generator serves as a highly reliable broadband signal source for EMC testing, offering signals up to 26.5 GHz with frequency intervals as small as 10 MHz.

In EMC testing, it can be used for efficient calibration and validation of test sites and equipment. Regular calibration of test sites, instrumentation, and accessories is critical, and the comb generator provides a stable signal for validating EMC test environments.

Product list

Interested or have specific questions?