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Features

• Non-Contacting Choked Piston
• Precision Micrometer Lockable Drive

The Flann Series 050 of Waveguide Short Circuits features a length of waveguide which houses a non-contacting choked, low-high-low impedance piston.

Millimetre wave units utilise a precision machined waveguide section. Careful choke design ensures freedom from spurious resonances. The piston is driven by a precision calibrated mechanism which enables accurate and resettable piston positioning.

The drive mechanism is fitted with a lock.

All units provide a high VSWR and an accurate reference to the flange face.

The piston movement for each model is greater than half of the waveguide wavelength at the lowest frequency. Variable short circuits can be used to establish an accurate reference plane for VSWR and impedance measurements.

The Flann Series 051 of Waveguide Short Circuits offers the user an automated version. Please contact Sales for further information.

       
ModelFrequency
Range
(GHz)
WaveguideReflection
coefficient
Dimension
A
(mm)
WGRWR
100502.6 - 3.951032284>0.995493
11A0503.22 - 4.911A40229>0.995456
120503.94 - 5.991248187>0.995410
130504.64 - 7.051358159>0.995364
140505.38 - 8.181470137>0.995318
150506.58 - 8.181584112>0.995278
160508.20 - 12.51610090>0.995263
170509.84 - 15.01712075>0.995253
1805011.9 - 18.01814062>0.995260
1905014.5 - 22.01918051>0.995204
2005017.6 - 26.72022042>0.990205
2205026.4 - 40.12232028>0.985150
2305033.0 - 50.12340022>0.985140
2405039.3 - 59.72450019>0.985140
2505049.9 - 75.82562015>0.985127
2605060.5 - 92.02674012>0.980127
2705073.8 - 1122790010>0.980126
2805092.3 - 1402812008>0.980126
29050114 - 1732914006Specification / dimensions
available on request
30050145 - 2203018005
31050172 - 2613122004
32050217 - 3303226003