Waveguide Fixed Offset Shorts

Model Series 340

Description

Offset shorts with 1/8 and 3/8 wavelength offsets are considered one of the more accurate means of obtaining a 180° phase difference in waveguide. Using these single-piece devices will reduce the number of flange interfaces during calibration. This helps to maintain an essentially constant magnitude of current flow across the calibration plane.

The chart below lists the offset shorts available from Maury. Those in rectangular guide are nominally 1/8 and 3/8 wavelength offset at a frequency near the waveguide band center. These will not be the exact band center as the frequency is chosen to equalize the phase differences at the band edges.


Available Models

Swipeable Content
BAND EIA WR NUMBER FREQUENCY RANGE (GHz) MODEL OFFSET (cm) DELAY (ps)1
S WR284 2.6 - 3.95 S340B1 1.524 50.852
S340B2 4.572 152.555
E WR229 3.3 - 4.9 E340B3 1.359 45.346
E340B4 4.077 136.038
G WR187 3.95 - 5.85 G340B1 1.026 34.235
G340B3 3.078 102.704
F WR159 4.9 - 7.05 F340C1 0.815 27.194
F340C3 2.446 81.616
C WR137 5.85 - 8.2 C340F1 0.686 22.890
C340F3 2.058 68.670
H WR112 7.05 - 10.0 H340B1 0.571 19.067
H340B3 1.714 57.191
X WR90 8.2 - 12.4 X340B1 0.483 16.116
X340B3 1.448 48.316
M WR75 10.0 - 15.0 M340C1 0.396 13.213
M340C3 1.189 39.674
P WR62 12.4 - 18.0 P340A1 0.352 11.745
P340A2 1.055 35.202
N WR51 15.0 - 22.0 N340A 0.267 8.909
N340B 0.800 26.694
K WR42 18.0 - 26.5 K340A1 0.251 8.365
K340A2 0.752 25.095
U WR28 26.5 - 40.0 U340B 0.150 5.005
U340C 0.450 15.015
J WR22 33.0 - 50.0 J340A1 0.120 4.007
J340B1 0.360 12.022
1 Offset delay is calculated without consideration for the dispersive effect of waveguide, that is, assuming the short is in air dielectric coaxial line. This conforms to the convention established for Keysight network analyzers. Anritsu analyzers use the actual mechanical offset in centimeters.

Application Notes and Data Sheets

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