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SPDT PIN diode absorptive switch

16th December 2016


Fairview Microwave has released and new SPDT PIN Diode Absorptive Switch that performs across a wide range of frequencies.

The FMSW2026 is a new, ultra broadband single pole double throw (SPDT) PIN diode switch that covers 100 MHz to 67 GHz and is available in a coaxial package.

Having such a broad frequency range with low insertion loss, high isolation, and fast switching speed across RF, microwave, and millimetre-wave bands makes this switch suited for a multitude of applications that include military radar, satellite and multi-gigabit communications, surveillance systems, point to point and point to multi-point wireless transmission links and test and measurement applications.

Fairview’s FMSW2026 SPDT PIN diode switch features impressive broadband performance characteristics that include maximum input power handling of 0.5 watts (CW), insertion loss of 6dB typical, 10.5 B maximum, and Isolation of 65dB typical, 40dB minimum.  

The design also displays fast switching speed of 100 nsec maximum. J1 and J2 ports are terminated in 50 ohms when switched in the isolation (off) state to absorb higher frequency signal reflections.

TTL compatible driver logic circuitry is included for accurate switching control. The design features an operational temperature range of -30˚C to +60˚C and uses dual voltage controls of +5Vdc and -5Vdc.

The compact and rugged MIL grade coaxial package design is gold plated and has interface connections that include 1.85 female connectors for mm-wave transmission, solder terminals for DC voltages, and an SMA female connector for TTL logic control. 









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