RF components
How filters, amplifiers, switches, couplers and antennas behave in S-parameters, and what to check on a datasheet.
- Duplexer Basics: How Two Filters Share One Antenna2026-10-31A duplexer is a transmit filter and a receive filter joined at a common antenna port. Read insertion loss from S21 or S32 and isolation from S31, where 2 dB of loss passes 63 percent of power.
- RF Test Connectors: SMA, 3.5 mm, 2.92 mm and N Compared2026-11-02SMA is specified to 18 GHz, 3.5 mm to 26.5 GHz and 2.92 mm to 40 GHz, and all three mate with each other. A test chain is only as good as its lowest-rated connector, so check every part in the path.