Description:
This 12:1, solid-state RF
switch matrix was built for a test system application (Test
and measurement application). The four layer PCB was
designed with Coplanar waveguide over groundplane and
Stripline techniques for very low sensitivity to
manufacturing tolerances and very low assembly costs. One of
the key tasks of the design was to carefully characterize
the temperature performance of the matrix loss versus
temperature so a loss correction versus temperature
algorithm could be developed.
- 12:1, 50 ohm, RF
multiplexer design
- 500 MHz to 2.5 GHz
frequency range.
- High third order
intercept point (> 45 dBm).
- Greater than 130 dB port
to port isolation at 2.2 GHz.
- Greater than 15 dB input
port return loss.
- 50 Ohm terminated input
ports when not selected.
- Very low power PHEMT
switch matrix design.
- Three wire serial
interface.
- Also designed a full PC
controlled, GUI driven software and test fixture for
independent test.
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