Rohde and Schwarz BBA100 Broadband Amplifier System

The Rohde & Schwarz BBA100 is a modular broadband amplifier system engineered for RF applications demanding flexible power scaling and multi-band coverage. Operating from 9 kHz to 1 GHz, the BBA100 delivers up to 500 W output power across three frequency bands, with configurations supporting 125 W (9 kHz to 250 MHz), 250 W (80 MHz to 400 MHz), and 125 W (250 MHz to 1 GHz). The integrated system controller manages RF path switching, frequency band selection, and real-time monitoring - eliminating external control complexity.

Its 100% mismatch tolerance and short-circuit ruggedness make it suitable for demanding test environments where load conditions vary unpredictably.

Technical Specifications

• Frequency Range: 9 kHz to 1 GHz (expandable to 6 GHz with R&S BBA150)


• Output Power: Up to 500 W across three frequency bands at launch; up to 1000 W system maximum


• RF Path 1: 9 kHz to 250 MHz, 125 W nominal (180 W minimum at saturation)


• RF Path 2: 80 MHz to 400 MHz, 250 W nominal


• RF Path 3: 250 MHz to 1 GHz, 125 W nominal


• Modulation Support: Amplitude, frequency, phase, and pulse modulation


• Mismatch Tolerance: 100% - withstands short circuits and open RF outputs

Key Features

• Modular 19" chassis architecture with base unit and optional extension modules


• Scalable design supporting future upgrades for increased power or additional frequency bands


• Integrated system controller with frequency band and RF path management


• Input switch routing central RF signal to selected RF paths


• Sample port switch directing forward and reflected power signals from multiple bands to central ports


• Output switch enabling flexible frequency-to-load routing

Typical Applications

• EMC testing and compliance validation


• RF product development and design validation


• Quality assurance and manufacturing test


• Research and physical engineering


• Radiocommunications system testing

Compatibility & Integration The BBA100 family integrates with the R&S BBA150 to extend coverage to 6 GHz. The system's internal architecture eliminates the need for external switching equipment or manual signal source reconnection during frequency band transitions.