High Reliability Gallium Nitride (GaN) RF and Microwave Amplifier for X-Band Radar from Comtech PST

MELVILLE, NY- Comtech PST Corp. in Melville, NY, introduces the Model BHCDP928978-4000 Gallium Nitride (GaN) Amplifier for ground or surface X-band radar applications.

The linear AB design operates from 9.2 to 9.7 GHz over an instantaneous bandwidth of 500 MHz. The development of this product is intended for the replacement of a traveling wave tube (TWT).

The amplifier design features self-protection for load voltage standing wave ratio (VSWR), duty cycle, pulse width and temperature. It also provides graceful degradation in the event of an RF power module failure.

A mean time between failure (MTBF) increase of 10 times that of the TOP it replaces is achieved for improved reliability and lower maintenance costs, according to company officials. Comtech supports custom configurations and features, as well as specific power levels of 16 kilowatts.

Related: RF and microwave designers grapple with a crowded spectrum

This high-reliability solid-state pulse amplifier features Class AB GaN technology; high output power dynamic range; Efficiency; RF input and output sample detectors; pulse width and duty cycle protection; VSWR thermal and load protection; status and remote control Ethernet interface; hardening for harsh environmental applications; customization; progressive degradation; and cold start.

The amplifier measures 19 by 17 by 7 inches and weighs 60 pounds. It also has an instantaneous bandwidth of 500 MHz; 4000 Watts peak output power; 66 decibels (nominal) power gain; 40 microsecond pulse width (typical); 10% duty cycle (typical); pulse drop less than 1.0 decibels (typical); Pulse rise and fall times of less than 20 nanoseconds (typical); Input VSWR less than 1.5:1; output load VSWR less than 1.5:1; DC voltage input of 48 volts at 3000 watts; 0 to 50 degrees Celsius operating temperature at the base plate; 0-95% non-condensing operating humidity; operational shock and vibration per MIL-STD-810F; 10,000 foot operating altitude; and mean time between failures of more than 27,500 hours.

For more information, contact Comtech PST online at https://comtechpst.com.

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