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Programmable Waveguide Variable Attenuator
Product model
Operating frequency (GHz)
Insertion loss in state 0 (dB)
VSWR (:1)
Attenuation Dynamic Range (dB)
Attenuation Step (dB)
Attenuation response (dB)
Average Power (W)
RF Interface Type
Control type
Collect
Download
3D model
PATT 2860L
26.5~40
<2
<1.2
0-60
0.1
/
≤10
UG-387/U WR19
/
PATT 1960L
40~60
≤0.6
≤1.25
0-60
0.1
±1
≤5
UG-383/U WR19
Manual/USB Programmable
PATT 1560L
50~75
≤0.7
≤1.25
0-60
0.1
±1
≤4
UG-385/U WR15
Manual/USB Programmable
PATT 1260L
60~90
≤0.8
≤1.25
0-60
0.1
±1
≤2
UG-387/U WR12
Manual/USB Programmable
PATT 1060L
75~110
≤0.9
≤1.25
0-60
0.1
±1
≤1
UG-387/U WR10
Manual/USB Programmable
PATT 0860L
90~140
≤1
≤1.25
0-60
0.1
±1
≤0.5
UG-387/U WR08
Manual/USB Programmable
PATT 0660L
110~170
≤1.2
≤1.25
0-60
0.1
±1.5
≤0.5
UG-387/U WR06
Manual/USB Programmable
PATT 0560L
145~220
≤1.5
≤1.25
0-60
0.1
±1.5
≤0.2
UG-387/U WR05
Manual/USB Programmable
PATT-1250 (Module)
60~90
9 typ.
1.5 typ.
40~50
/
/
/
UG-387/U WR12
Manual/USB Programmable
PATT-1050 (Module)
75~110
8 typ.
1.8 typical.
36~40
/
/
/
UG-387/U WR10
Manual/USB Programmable
Programmable Waveguide Variable Attenuator
The waveguide‑controlled, adjustable attenuator is a high‑end, precision passive device specifically designed for automated testing, remote operation, and closed‑loop power control. Equipped with an integrated servo/stepper motor and a high‑resolution encoder, it can receive commands from a host computer to achieve fully automatic, highly accurate, and repeatable adjustment of RF signal attenuation. This eliminates the tediousness and errors associated with manual fine‑tuning, making it a core control component for building unattended test production lines, large‑scale radar adaptive feed networks, and on‑board remote management systems.
• Operating frequency range: 40 GHz to 220 GHz
• Multi-waveguide port WR5/WR6/8/10/12/15/19
• Low insertion loss, low VSWR
• Wide dynamic range: 0–60 dB, with an adjustment resolution of 0.1 dB.

