Description:
This dual 6:1 RF switch
matrix was built for a RF test system (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.
- Dual 6:1, 50 ohm, RF
multiplexer design
- 100 MHz to 3 GHz
frequency range
- High third order
intercept point (> 45 dBm)
- Greater than 100 dB port
to port isolation at 2.5 GHz.
- Greater than 15 dB input
port return loss
- 50 Ohm terminated input
ports when not selected
- Cell phone interface
allows test calls to be made through the switch matrix
and antenna feeds
- 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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