Agilent R/Q/U/V281A,B
mm-Wave-to-Coax Adapters
26.5 to 65 GHz
Technical Overview
• Excellent repeatability
• Measurement versatility
• WR-28, WR-22, WR-l9,
WR-15 (R, Q, U, V band)
waveguide
• Precision 1.85 mm and 2.4 mm
coax connectors
Increased measurement versatility
The Agilent Technologies 281
family of precision millimeter
waveguide-to-coax adapters offer
coax measurements to 65 GHz.
These adapters provide a simple,
low SWR transition between
transmission media. You are
able to 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.
R/Q/U/V281 adapters increase
the versatility of existing test
sets 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 R/Q/U/V281 adapters,
engineers can balance the merits
of coax and waveguide to achieve
the best combination of accuracy,
cost and ease-of-use.
Dimensions
in millimeters
A = R281: 19.3
Q281: 28.7
U281: 28.7
Specifications
Specifications describe the instrument’s warranted performance over the temperature 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”.
Supplemental
Coax-to-waveguide adapters characteristics
Coax Repeatability
2,3
Model connector Waveguide Frequency Return Insertion typically
number type
1
number (GHZ) loss
2
loss
4
better than:
R281A 2.4 mm (f) WR-28 26.5 to 40 ≥24 dB ≤0.3 dB ≥-50 dB
R281B 2.4 mm (m) WR-28 26.5 to 40 ≥24 dB ≤0.3 dB ≥-50 dB
Q281A 2.4 mm (f) WR-22 33 to 50 ≥22 dB ≤0.3 dB ≥-50 dB
Q281B 2.4 mm (m) WR-22 33 to 50 ≥22 dB ≤0.3 dB ≥-50 dB
U281A 1.85 mm (f) WR-19 40 to 60 ≥22 dB5≤0.5 dB ≥-50 dB
U281B 1.85mm (m) WR-19 40 to 60 ≥22 dB5≤0.5 dB ≥-50 dB
V281A 1.85mm (f) WR-15 50 to 67 ≥20 dB ≤0.5 dB ≥-50 dB
67 to 70 ≥20 dB
(typical)
V281B 1.85mm (m) WR-15 50 to 67 ≥20 dB ≤0.5 dB ≥-50 dB
67 to 70 ≥20 dB
(typical)
1 f = jack, m = plug
2 At the coaxial port only
3 Repeatability = 20 log I ∆G I where I G m1- G m21. This is the difference between two measurements G m1and G m
2
before and after one disconnect/connect cycle at the coax port. Repeatability depends upon proper torque and pin depth.
4 Typical maximum insertion loss for single adapter
5 Typical for single adapter. Mated pair return loss warranted to ≥18 dB.
Environment
R/Q/U/V28lA,B environmental specifications
Non-operating Operating
Temperature -55 to +75° C 0 to +55° C
Humidity <95% relative at +40° C <95% relative at +40° C
Altitude ≤15,300 meters (50,000 ft) <4,600 meters (15,000 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.
Care, connection and torque
Connector torque and pin depth specifications
Torque Connector Pin depth
Connector Torque wrench pin depth gage kit End cap
type (±0.5 Ib-in) no. (male or female) part no. part no.
1.85 mm 8 Ib-in 8710-1765 U281: 0 to 0.03 mm 85056-60018 (m) 1401-0202 (f)
(90 N-cm) (0 to 0.0012 in)
V281: 0 to 0.0152 mm 85056-60017 (f) 1401-0208 (m)
(0 to 0.0006 in)
2.4 mm 8 Ib-in 8710-1765 0 to 0.038 mm 1401-0202 (f)
(90 N-cm) (0 to 0.0015 in) 1401-0208 (m)
Protective caps for wavequide flange
R band 5040-0359
Q band 1401-0211
U band 1401-0211
V band 1401-0227
Mating 2.4 mm connectors with 1.85 mm connectors
The 1.85 mm coaxial end of the U/V281A,B adapters can be mated directly
with 2.4 mm connectors.
Agilent Technologies’ Test and Measurement Support,
Services, and Assistance
Agilent Technologies aims to maximize the value you
receive, while minimizing your risk and problems. We
strive to ensure that you get the test and measurement
capabilities you paid for and obtain the support you need.
Our extensive support resources and services can help
you choose the right Agilent products for your applications
and apply them successfully. Every instrument and system
we sell has a global warranty. Support is available for at
least five years beyond the production life of the product.
Two concepts underlie Agilent’s overall support policy:
“Our Promise” and “Your Advantage.”
Our Promise
Our Promise means your Agilent test and measurement
equipment will meet its advertised performance and
functionality. When you are choosing new equipment, we
will help you with product information, including realistic
performance specifications and practical recommendations
from experienced test engineers. When you use Agilent
equipment, we can verify that it works properly, help
with product operation, and provide basic measurement
assistance for the use of specified capabilities, at no extra
cost upon request. Many self-help tools are available.
Your Advantage
Your Advantage means that Agilent offers a wide range
of additional expert test and measurement services,
which you can purchase according to your unique technical
and business needs. Solve problems efficiently and gain a
competitive edge by contracting with us for calibration,
extra-cost upgrades, out-of-warranty repairs, and onsite
education and training, as well as design, system integration,
project management, and other professional engineering
services. Experienced Agilent engineers and technicians
worldwide can help you maximize your productivity, optimize
the return on investment of your Agilent instruments and
systems, and obtain dependable measurement accuracy for
the life of those products.
Agilent T&M Software and Connectivity
Agilent’s Test and Measurement software and connectivity
products, solutions and developer network allows you to
take time out of connecting your instruments to your
computer with tools based on PC standards, so you can
focus on your tasks, not on your connections. Visit
www.agilent.com/find/connectivity
for more information.
By internet, phone, or fax, get assistance with all your
test & measurement needs
Phone or Fax
United States:
(tel) 800 452 4844
Canada:
(tel) 877 894 4414
(fax) 905 282 6495
China:
(tel) 800 810 0189
(fax) 800 820 2816
Europe:
(tel) (31 20) 547 2323
(fax) (31 20) 547 2390
Japan:
(tel) (81) 426 56 7832
(fax) (81) 426 56 7840
Online Assistance
www.agilent.com/find/assist
Product specifications and descriptions in this document
subject to change without notice.
© Agilent Technologies, Inc. 2001, 2004
Printed in USA, February 4, 2004
5965-1225E
Korea:
(tel) (82 2) 2004 5004
(fax) (82 2) 2004 5115
Latin America:
(tel) (305) 269 7500
(fax) (305) 269 7599
Taiwan:
(tel) 0800 047 866
(fax) 0800 286 331
Other Asia Pacific
Countries:
(tel) (65) 6375 8100
(fax) (65) 6836 0252
Email: tm_asia@agilent.com
Loading...