Increased measurement versatility
Coax measurements to 110 GHz. The
Agilent Technologies V/W281C,D
precision 1 millimeter waveguide-tocoax adapters offer a simple, low
SWR transition between transmission
media. Take advantage of stable, low
loss, and low SWR waveguide when
measuring coaxial devices at higher
frequencies. Or keep the convenience
of coax, even when testing waveguide
components. V/W281 adapters increase
the versatility of test systems, like the
Agilent 8510XF, to measure both coax
and waveguide components.
Excellent accuracy
Low SWR transitions reduce mismatch uncertainty and excellent
repeatability ensures consistent
measurements. Available with both
male and female connectors, these
adapters help microwave engineers
combine the best test components
from each transmission media. With
the V/W281 adapters, engineers can
balance the merits of coax and waveguide to achieve the best combination
of accuracy, cost, and ease-of-use.
Agilent V/W281C,D
mm-Wave-to Coax Adapters
50 to 110 GHz
Product Overview
1. Length from mating surface of 1-mm connector to center line of waveguide aperture.
• Excellent repeatability
• Measurement versatility
• WR-15, WR-10
(V,W band waveguide)
• Precision 1-mm coax
connectors
9.8
(.38)
32.1
(1.26)
14.0
(.55)
9.8
(.38)
V281C
23.33
(.919)
W281C
23.33
(.919)
V281D
23.33
(.919)
1
13.84
(.545)
1
13.84
(.545)
4.0
(.016)
19.1
(.75)
W281D
23.33
(.919)
1
13.79
(.543)
1
13.79
(.543)
4.0
(.016)
32.1
(1.26)
14.0
(.55)
19.1
(.75)
Specifications
Specifications describe the instrument’s warranted performance over the tem-
perature range 0 to 55 °C (except where noted). Supplemental characteristics
are intended to provide information useful in applying the instrument by giving typical but nonwarranted performance parameters. These are denoted as
“typical,” “nominal,” or “approximate.”
Coax-to-waveguide adapters Supplemental
characteristics
Model Coax Waveguide Frequency Return Insertion Repeatability
3,4
number connector number (GHZ) loss loss
2
typically
type
1
better than: better than:
V281C 1 mm (f) WR-15 50 to 75 –16 dB ≥–0.8 dB –45 dB
V281D 1 mm (m) WR-15 50 to 75 –16 dB ≥–0.8 dB –45 dB
W281C 1 mm (f) WR-10 75 to 110 –16 dB ≥–1 dB –40 dB
W281D 1 mm (m) WR-10 75 to 110 –16 dB ≥–1 dB –40 dB
1. f = jack, m = plug
2. Maximum insertion loss for a single adapter.
3. At the coaxial port only.
4. Repeatability = 20 log |∆G| where |∆G| = |G m
1
– G m2|. This is the difference between two measurements
G m
1
and G m2before and after one disconnect/connect cycle at the coax port.
Repeatability depends upon proper torque and pin depth.
Environmental Specifications
Non-operating Operating
Temperature –40 to +75 °C 0 to 55 °C
Altitude <15,000 meters (50,000 ft) <15,000 meters (50,000 ft)
Note: Storage or operation within an environment other than that specified
above may cause damage to the product and may void the warranty.
Non-operating environmental specifications apply to storage and shipment.
Products should be stored in a clean, dry environment. Operating environmental specifications apply when the product is in use. Products should not
be operated in a condensing environment.
Care, connection, and torque
For more information, review the Operating Service Guide for the
V/W281C,D adapters, 00281-90056.
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Product specifications and descriptions in this
document subject to change without notice.
Copyright © 1998, 2000 Agilent Technologies
Printed in U.S.A. 8/00
5966-2007E
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