Click here to download a PDF of this product

 

Features

  • 0 dB – 20 dB Attenuation
  • VSWR Better than 1.10:1

The Flann Series 080 of Variable Attenuators is suitable for applications where calibrated attenuators are not required, such as level-setting or padding.

Models 11A080 to 20080 inclusive
Each unit consists of a length of waveguide with a bearing tube mounted on an external H plane wall. Passing through the tube is a close fitting plunger which carries, and varies the position of, the attenuation element within the waveguide. A locking screw is provided to secure the element at the required position. The attenuating elements are ni-chromed glass.

Model 22080 to 24080
These units are similar to the above but provided with a threaded drive mechanism to the attenuating element and a locking ring for securing at a fixed position. The attenuating element is of ni-chrome evaporated on glass.

Model 25080 to 27080
On these units the attenuating element of ni-chromed glass is introduced into the waveguide via a slot in the broad wall. Vane position is varied by a threaded drive mechanism.

Specifications:
Attenuation Range: 0 dB – 20 dB
VSWR (maximum): 1.10 : 1

          
ModelFrequency
Range (GHz)
WaveguideMaximum
Insertion Loss
(dB)
Maximum
Power (Watts)
Dimensions
(mm)
WGRWRABC
11A0803.22 - 4.9011A402290.2227512522
120803.94 - 5.9912481870.222291122
130804.64 - 7.0513581590.21.5ON REQUEST
140805.38 - 8.1814701370.212409322
150806.58 - 10.015841120.211808519
160808.20 - 12.516100900.20.751318419
170809.84 - 15.017120750.20.751208019
1808011.9 - 18.018140620.30.751007019
1908014.5 - 22.019180510.30.75906719
2008017.6 - 26.720220420.30.5765619
2108021.7 - 33.021260340.40.5765219
2208026.4 - 40.122320280.40.5704516
2308033.0 - 50.123400220.50.5694216
2408039.3 -59.724500190.60.5904516
2508049.9 - 75.825620150.50.3904530
2608060.5 - 92.026740120.50.3904530
2708073.8 - 11227900100.60.3904530