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| ITS-9050 with Hand Grip |
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The Innovative
Technical Systems ITS-9050 Detector is a sensitive,
harmonic mixing detector designed to measure millimeter-wave free-space
radiation. It is ideal for measuring radiation patterns of antennas in
both the near and far-field. The ITS-9050 employs a free-running
dielectric resonator oscillator (DRO) and an integrated harmonic mixer
with a waveguide RF input that either connects
directly to a circuit under test or to an antenna for radiation
detection. The resulting IF is amplified and detected by an IF
log-detector that drives a front panel LCD voltmeter to provide
an indication of signal strength. A DC output voltage from the log detector is available on a BNC connector to drive external
data acquisition instrumentation. Also, a sample of the IF output is provided for measurement on a
spectrum analyzer.
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| ITS-9050 Panel Controls |
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The
DRO is a high-stability oscillator that is
selected to match the specific measurement frequency of interest. The
oscillator frequency is selected to produce an IF output between 100
MHz and 1100 MHz. The IF chain consists of several stages of low-power
amplifiers, filters, and a programmable attenuator to set the overall
gain. Three gain settings (0, -10, and -20 dB) are selectable through a
front panel switch. By taking advantage of the selectable attenuation,
the usable dynamic range approaches 50
dB.
The ITS-9050 has an integrated NiMH battery
pack that will provide about 1.5 hours of continuous operation. An integrated charging circuit will recharge the battery pack in
approximately 4 hours, or the ITS-9050 may be operated on an external
12 VDC supply.
A
convenient detachable handle allows the ITS-9050 to be easily used for
field probing. The handle attaches with a 1/4-20 thread for mounting on
standard tripods.
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