Dow-Key Microwave Press Release - August 24, 2009
Dow-Key Microwave Announces New Generation of Lightweight Waveguide Switches
Dow-Key’s New Generation of Lightweight Waveguide Switches – a more superior design that weights much less and
consumes less power
Calif. (August 24, 2009) - Dow-Key Microwave is pleased to announce that the next generation of
Lightweight Waveguide Switches is more
superior to previous designs in terms of weight, size, and current consumption. These transfer switches are
available in WR-62, WR-75, WR-90, and WR-112 with frequencies ranging between 12.4-18.0 GHz, 10.0-15.0 GHz,
8.20-12.4 GHz, and 7.05-10.0 GHz respectively.
The Lightweight Waveguide Switches are offered in Latching
Self Cut-Off operating mode with a design life of 200,000 cycles and can operate in extreme environments with
temperatures ranging from -54°C to +85°C (-65.2°F to +185°F) allowing usage in both ground and airborne
applications. In addition, these waveguide switches are equipped with Indicator Circuitry and with Transient
Suppression Diodes. Dow-Key also provides these switches with two different flange types: Cover flange and Choke
The new Lightweight Waveguide Switches have been accurately and carefully engineered to meet
today’s need in military and commercial applications. Therefore, the total weight for the WR-62 has been reduced
by 49% and by 52% for both WR-75 and WR-90 waveguide models which results into a weight of 300 grams (10.6 oz.)
for each model. In addition, the weight for the WR-112 has been reduced down to 500 grams which corresponds to a
53% lighter switch than its previous model.
Also, the overall dimensions are slightly smaller when compared to earlier Dow-Key designs, and all four new
waveguides now draw 65% less current which is equivalent to 350 mA. It makes these models an excellent choice for
power sensitive application.
These waveguide switches are excellent for use in applications where size and
weight are critical such as in military and commercial airborne programs. For Space Qualified requirements consult
with factory for Dow-Key’s Hi-Rel Waveguide Switch product line; ranging in sizes from WR-15 to WR-112.
data sheet for more information or contract Dow-Key at