Understanding Diplexers

Diplexers allow either two devices or ports to share a single antenna or allow one device to split its signal across two antennas. This video explains the basics of diplexers, how they are used, and how they are measured. A short explanation of the difference between diplexers and duplexers is also included.

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Timeline:
00:00 Introduction
00:16 Suggested viewing
00:38 About diplexers
02:10 How diplexers are connected
02:54 Aside: about multiplexers
03:55 Diplexer construction
04:48 Measuring / characterizing diplexers
05:36 Common diplexer measurements
05:56 Insertion loss
06:52 Insertion loss – example
07:48 Isolation
08:49 Isolation – example
09:28 VSWR / insertion loss
10:20 Return loss – example
11:12 Diplexer vs. duplexer
12:52 Summary