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Aerospace and Defense Channel

Broadband Bi-Directional Amplifier for Data Links

May 14, 2013
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Broadband Bi-Directional Amplifier for Data Links

Triad RF Systems has introduced the model TTRM1010 bi-directional amplifier module for commercial and military data links and other communications applications in which the ability to “bolt on” additional RF output power to a low-powered transceiver while increasing its receive performance can dramatically expand the host system’s range. It delivers 5 W (+37 dBm) from 30 MHz to 3 GHz in a compact, rugged enclosure measuring only 3.25" × 2" × 1". Specific applications include remotely-controlled mobile robots that search disaster sites (or a building suspected of housing the enemy), small UAVs increasingly used for police surveillance and various non-law enforcement scenarios, and enterprise voice, data, and video surveillance or communications networks that need to serve a larger area than when they were installed.

The TTRM1010 combines high-performance transmit as well as receive sections, high-speed T/R switching, a power supply with a wide input voltage range of +9 to +36 VDC, and protection circuits for high load mismatch (VSWR) and over-temperature conditions. The transmitter employs a GaAs MMIC-based amplifier line-up and the receive section achieves a noise figure of 4 dB. The module can be specified for indoor or outdoor use and operates over a temperature range of –20˚to +85˚C and an altitude up to 30,000 feet.

The transmit section has a typical third order intercept point (OIP3) of +47 dBm, gain of 23 dB±1 dB, and typical harmonic and spurious signal rejection of –60 dBc. The receive section has gain of 20 dB±1.5 dB and a noise figure of 4 dB. Switching time from transmit to receive is less than 2 µs, and typical return loss of both sections ranges from –14 to –16 dB. The module is switched to transmit or receive via a TTL input and an analog voltage output is provided for temperature monitoring.

Triad RF Systems Inc.,
East Brunswick, NJ
(855) 558-1001,
www.triadrf.com

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