Airline Mechanical Characteristics - Agilent Technologies 85051B User's And Service Manual

Specifications
Mechanical Characteristics
Table 2-2 Connector Pin Depths
Connectors
Attenuators
center collet removed
a
Airlines
center pin removed
a. The relationship between the length of the inner conductor and the length of the
outer conductor determines the airline center conductor recession. Refer to
the Airline" on page 3-10.
b. In this case, the center conductor is 0.0001 inch (0.0025 mm) longer than the outer
conductor.
Using these mechanical dimensions, you can calculate the expected electrical performance with the
equations in the following publications:
• Nelson, Robert E., and Marlene R. Coryell, "Electrical Parameters of Precision, Coaxial, Air-Dielectric
Transmission Lines", U.S.National Bureau of Standards Monograph No. 96.
• Somlo, P.L., "The Computation of Coaxial Line Step Capacitances", IEEE Transactions on Microwave
Theory and Techniques, Volume MTT-15, No. 1, January, 1967.
The measurement method in these publications provides a general idea of the expected device
characteristic impedance. Variations in connector interfaces can have a large effect on your actual electrical
measurements.

Airline Mechanical Characteristics

The dimensions of the airline outer conductor are shown in
both airlines. Two conductors are provided with the kit.
The dimensions of the 50 airline and the 25 mismatch airline are shown in
CAUTION The center and outer conductors of the airlines in this kit have been mechanically measured
and matched. Do not use the center or outer conductors provided in this kit with a center or
outer conductor from any other airline. Damage to the airline or attaching connector may
result.
2-4
Allowable Recession
millimeters
0.0000 to +0.0500
b
+0.0025 to –0.0100
inches
0.000 to +0.0020
b
+0.0001 to –0.0004
"Gaging
Figure 2-2. This outer conductor is common to
Figure 2-3 and Figure 2-4.
85051B