Rugged RF and microwave bi-phase modulators for military communications and test introduced by Pasternack

July 31, 2020
Devices offer TTL command control, low insertion loss, switching speed of 40 nanoseconds, VSWR of 1.8:1, and maximum peak RF input power of 0.5 Watts.

IRVINE, Calif. – Pasternack, an Infinite Electronics brand in Irvine, Calif., is introducing a line of 0-to-180-degree bi-phase modulators for military applications, radar, communications systems, microwave radio, test & measurement, serial data transmission, base station infrastructure, and industrial uses.

These RF and microwave modules consist of nine different models covering broad octave frequency bands ranging from 0.5 to 40 GHz. Bi-phase modulators take a TTL level digital bits stream that is encoded onto the RF carrier using 2 Phase Shift Keying (2PSK) modulation, where the two phases are separated by 180 degrees.

Pasternack's bi-phase modulators offer TTL command control, low insertion loss of 2.5 dB, switching speed of 40 nanoseconds, voltage standing wave ratio (VSWR) of 1.8:1, and maximum peak RF input power of 0.5 Watts.

Related: RF coaxial probes for RF and microwave test and measurement introduced by Pasternack

All designs require dual bias voltages and the input and output RF ports are bi-directional. These bi-phase modulators operate across a wide temperature range from -40 to 85 degrees Celsius.

The compact and rugged packages use solder pins for TTL, DC bias and ground, and field replaceable SMA or 2.92-millimeter female connectors. All designs meet MIL-STD-202 for humidity, shock, vibration, altitude, and temperature cycle.

For more information contact Pasternack online at

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