RF power amplifiers – 80 to 1000 MHz and 175 to 4700 W CW: PRÂNA RF MT Series | PRANA

The PRÂNA RF MT Series comprises broadband solid-state RF power amplifiers covering the frequency range from 80 to 1000 MHz. Eight power classes with typical output levels from 175 to 4700 W CW allow the amplifier configuration to be adapted to different requirements in EMC test systems, RF instrumentation and professional laboratory environments.

The amplifiers use a Class-A architecture and cover the complete operating range as a single instantaneous frequency band. An optional 20 to 80 MHz frequency extension is specified for the MT175, MT310, MT640 and MT1150.

Depending on the model and version, the amplifiers can include a colour touchscreen, digital monitoring, remote-control interfaces, an integrated bidirectional power coupler and real-time forward and reflected power indication.

Advantages

• Broadband operation: The complete 80 to 1000 MHz frequency range is covered without band switching.
• Class-A architecture: Designed to provide high linearity and controlled signal quality for demanding RF and EMC applications.
• Low harmonic distortion: H2 and H3 are below -20 dBc at the 1 dB compression power level.
• High mismatch tolerance: The amplifiers are designed to operate into any load mismatch without damage.
• Power monitoring: Depending on the version, integrated bidirectional couplers provide forward and reflected power monitoring.
• System integration: Model-dependent remote control through Ethernet or LAN, USB, GPIB and RS-232.
• Safe laboratory operation: Digitally controlled models include a hardware interlock for integration into the test-system safety architecture.
• Modular construction: The architecture supports diagnostics, maintenance and module replacement with minimal readjustment.
• High system availability: According to the provided information, the modular architecture allows operation at reduced power if individual components fail.
• Scalable concept: Several models can be upgraded to a higher power class.

Key features

• Amplifier technology: Broadband solid-state RF power amplifier.
• Operating class: Class A.
• Standard frequency range: 80 to 1000 MHz.
• Optional frequency extension: 20 to 80 MHz for the MT175, MT310, MT640 and MT1150.
• Typical output power: Model-dependent power levels from 175 to 4700 W CW.
• Harmonics: H2 and H3 below -20 dBc at the 1 dB compression power level.
• Cooling: Air cooling with integrated fans.
• Mismatch tolerance: Operation into any load mismatch without damage.
• Local operation: Colour touchscreen and digital control depending on the version.
• Monitoring: Model-dependent monitoring of transistors, power supplies, internal temperatures and fans.
• Remote control: Depending on the model, Ethernet or LAN, USB, IEEE 488 GPIB and RS-232.
• Power measurement: Depending on the version, an integrated bidirectional coupler provides real-time forward and reflected power indication.
• Mechanical configuration: Depending on the power class, the amplifiers are supplied as 19-inch rack units or mobile system cabinets.

Model overview

Typical applications

• EMC testing in professional laboratory and test environments.
• RF testing and instrumentation requiring high broadband output power.
• Radio communication applications within the 80 to 1000 MHz frequency range.
• Measurement, development and research laboratories.
• Automated test systems requiring digital control and remote monitoring.
• Development and validation tasks with demanding linearity and operational-safety requirements.
• Modular RF systems requiring forward and reflected power monitoring.

Additional information

The exact configuration depends on the selected power class and version. The lower-power models are available in different versions combining standard operation, digital control and an integrated bidirectional coupler. The higher-power systems are offered with digital control, a colour touchscreen, a hardware interlock and integrated power monitoring.

The MT640 provides a typical output power of 640 W CW in a chassis requiring only 7 rack units. Higher-power models are implemented as mobile system cabinets.

Depending on the model, available system components include external couplers, RF power cables, switching matrices and other equipment for integration into RF and EMC test systems. A standard three-year warranty is specified for the series.

EMCO supports customers in selecting the appropriate power class and evaluating the amplifier within a complete RF or EMC test configuration. Relevant parameters may include the required field strength, losses in cables and coupling devices, antenna characteristics, rack or cabinet requirements, power monitoring and remote-control architecture.