655-20

Antennas RF Overview

The L3Harris Narda-MITEQ Model 655-20 is a high-performance, wideband microwave amplifier designed for demanding RF applications. It operates within the frequency range of 18 to 40 GHz, delivering an output power of +27 dBm (500 mW). The device provides a typical small-signal gain of 20 dB with a flatness of ±1.5 dB across the band. Key electrical characteristics include a third-order intercept point (IP3) of +37 dBm and a noise figure of 6.5 dB. The unit utilizes a standard WR-28 waveguide interface for both input and output ports, ensuring low-loss transmission at millimeter-wave frequencies. Power consumption requires a regulated DC supply of +28 VDC at approximately 2.5 A.

Antennas RF Feature Summary

• Provides stable amplification in the 18-40 GHz millimeter-wave spectrum
• Features robust thermal management for continuous operation
• Ensures signal integrity through controlled gain flatness
• Supports high linearity for complex modulation schemes

Antennas RF Applications

• Electronic Warfare (EW) systems requiring wideband signal processing
• Satellite communication ground stations operating in Ka-band
• Radar test and measurement instrumentation setups
• Secure military communications links

Antennas RF Procurement Notes

Verify that the specific revision of the 655-20 matches the required connector type and pinout configuration for your system integration. Confirm that the DC power supply specifications align with the unit's voltage and current requirements to prevent damage. Ensure that the waveguide interfaces are compatible with existing cabling or adapters. Request detailed calibration certificates if phase or amplitude accuracy is critical for your application. Check for any updated firmware or hardware revisions that may affect performance parameters.

Antennas RF Selection Notes

Select this model when a wide bandwidth covering 18 to 40 GHz is necessary for a single-stage amplification solution. Consider the +27 dBm output power as sufficient for driving subsequent components without excessive loss. Evaluate the 6.5 dB noise figure against system link budget requirements for sensitive reception paths. Compare the physical dimensions and weight against space-constrained platforms. Assess the need for external control interfaces if remote gain adjustment or monitoring is required.

Antennas RF Part Context

The Model 655-20 belongs to the Narda-MITEQ series of broadband microwave amplifiers, which are engineered for reliability in harsh environments. This series is widely recognized in defense and aerospace sectors for its consistent performance across temperature variations. The 655-20 specifically addresses the growing demand for Ka-band capabilities in modern radar and communication architectures. It complements other components in the 655 series by offering a balance of power, gain, and bandwidth.

Antennas RF Replacement Considerations

Public confirmed substitute part numbers: None available.