Analysis

SPDT switch offers failsafe characteristics

16th August 2017
Mick Elliott

Recently announced by Aspen Electronics is a failsafe SPDT switch from Guerilla RF for cellular boosters, cellular infrastructure and L-band Satellite Communications. The GRF6011 is a linear, ultra-low loss switch that has been designed with failsafe characteristics when all voltage inputs are removed.

In switching mode, the device delivers IP1dB levels greater than 1W along with >49dBm IIP3 levels for both RF paths.

When powered down (Failsafe Mode), RFC to RF1 defaults to a high insertion loss while RFC to RF2 defaults to a low insertion loss state that retains high linearity.

The GRF2013 is a high performance broadband gain block featuring high linearity with low noise designed for small cell, wireless infrastructure and other high performance applications.

It exhibits outstanding broadband NF, linearity and return losses over 0.7 to 3.8GHz with a single match. Optimising the bias inductor and coupling caps for lower frequency operation will yield strong performance down to 50MHz.

The addition of simple external matching yields outstanding linearity and gain performance up to 8GHz.

As a first stage LNA, linear driver or cascaded gain block the GRF4003is a true multi-purpose component offering high levels of reuse across varied designs and application platforms.

Designed for small cell, wireless infrastructure and other applications, it exhibits outstanding broadband NF, linearity and return losses over 100 to 3800 MHz with a single match.

The GRF5110 is a high linearity PA/Linear Driver with low noise figure (NF). It delivers a P1dB of 28.8dBm, plus excellent IP3 and NF over a range of frequencies from 1500 to 3800MHz with fractional bandwidths >20%.

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