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News

Waveguide cross-guide couplers for monitoring microwave power


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Link Microtek
: 11 June, 2008  (New Product)
Link Microtek's Engineering Division has expanded its AMX range of waveguide
cross-guide couplers, which are designed for monitoring microwave power in
space-restricted systems.
Available in 16 different rectangular waveguide sizes covering frequencies
from 1 to 40GHz, these compact couplers are suitable for use in applications
ranging from commercial satellite communication systems to military radar.
The new additions to the AMX range include reduced-weight devices that are
produced in aluminium and precise power monitoring units featuring a high
directivity of 20dB over reduced bandwidths.
For high power applications, units can now be provided with coupling factors
up to 60dB from lower frequencies (1GHz) to mmwave frequencies (26.5-40GHz),
while for minimum space requirements, ultra-short mainline units are
available, e.g. just 50mm for a WR90 coupler.
All models in the AMX series feature a very flat coupling response over half
waveguide bandwidth, with a mean coupling of +/- 0.5dB, a frequency
sensitivity of +/- 1dB, a minimum directivity of 15dB and a low mainline
VSWR of 1.06:1. The devices can be specified with a wide choice of connector
types, including APC7, APC3.5, SMA, N, TNC, SSMA, K and waveguide flange
outputs.
Link Microtek's Engineering Division offers a rapid-turnaround custom design
service for special requirements such as non-standard waveguide sizes or
coupling values.
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