X2AS Datasheet, PDF (2/2 Pages) Anaren Microwave – SMT Crossover

Model X2AS
Rev. A
Typical Performance: 0.5 GHz to 6.0 GHz
Return Loss X2AS
-10
0.00
Insertion Loss X2AS
-20
-0.10
-30
-0.20
-40
-0.30
-50
-0.40
-60
500
1000 1500 2000 2500 3000 3500 4000 4500 5000 5500 6000
Frequency (MHz)
-0.50
500
1000
1500
2000
2500 3000 3500 4000
Frequency (MHz)
4500
5000
5500
6000
Mounting
In order for Xinger crossovers to work optimally, there
must be 50 transmission lines leading to and from all of
the RF ports. Also, there must be a very good ground to
the corners of the crossover to insure proper electrical
performance. If either of these two conditions are not
satisfied, insertion loss, VSWR and isolation parameters
may not meet published specifications.
When a surface mount crossover is mounted to a printed
circuit board, the primary concerns are; insuring the RF
pads of the device are in contact with the circuit trace of
the PCB and insuring the ground plane of neither the
component nor the PCB is in contact with the RF signal.
Since the component is not symmetrical, the crossovers
are specifically oriented in the tape and reel. An example
of how the PCB footprint could look is shown below. In
specific designs, the 50 lines need to be adjusted to the
unique dielectric coefficients and thicknesses as well as
varying pick and place equipment tolerances.
Mounting Footprint
To ensure proper electrical and thermal performance
there must be a ground plane with 100%
solder connection underneath the part
.063 SQ TYP
[1.60]
.034 TYP
[0.86]
.148
[3.75]
Mutiple
plated thru holes
to ground
50
Transmission
Line
DC Line
Dimensions are in Inches [Millimeters]
X2AS Mounting Footprint
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Europe:
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Available on Tape and
Reel For Pick and Place
Manufacturing.