Waveguide Hot Switch™ Power Combiner

Right Click to Download Series 55060 MCI Waveguide Hot Switch™ Power Combiner

The MCI Hot Switch ™ provides three combining modes for dual, phase locked,
high power amplifiers (HPAs) with distribution of the combined power to two
outputs, typically antenna and load. Should one HPA fail, the Hot Switch ™
redirects, on command, the remaining HPA to the desired output port with no
loss of airtime. This unit is recommended as standard equipment in new systems as
a replacement for fixed hybrids, magic tees and in systems that cannot be
switched under power. The Hot Switch™  is composed of two
waveguide hybrids connected by parallel waveguide runs, one of which includes a
motor driven dialectic phase shifter. A microprocessor based position controller
drives the phase shifter and enables easy integration with the transmitter combining
system. Multiple Hot Switch ™ combiners may be integrated with a single master
controller for systems with additional HPAs and/or antennas.
Every Hot Switch ™ is optimized for the intended channel in order to provide the lowest
possible VSWR and highest possible transmitter isolation throughout all intermediate and
terminal states. MCI also offers low-power and super-power versions of the Hot Switch™ that
uses non-contacting short circuits in the phase shifter sections.

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