Couplers, Dividers, and Combiners

Question I started with

Rather than memorize the whole transceiver, I isolated the inputs, outputs, and role of Couplers, Dividers, and Combiners.

Couplers, Dividers, and Combiners — concept flow — I redrew the relationships before returning to the equations.

Connecting the concepts

The key is separating through, coupled, isolated, and split ports with S-parameters. Frequency, impedance, gain/loss, noise, and linearity at both sides are recorded before connecting the block.

Couplers,
RF block
S-parameter
signal chain

Equations and assumptions

I write the reference impedance, units, and linear-versus-decibel domain before substituting numbers.

C_dB = -20 log10(abs(S31))D_dB = Isolation_dB - Coupling_dB

Worked example

An ideal equal split is −3.0103 dB per output; dissipative loss is separate.

Couplers, Dividers, and Combiners — calculation relationship — This is my explanatory redraw, not an imported RFDH figure or a measurement result.

Connecting it to my coursework and projects

I connect this block to my passive-network coursework and FMCW transceiver flow. The example is a recomputed study value, not a hardware measurement.

High-frequency engineering course hub

What I will check next

I do not mix typical, guaranteed, and simulated conditions or directly compare values taken at different frequency, bias, temperature, power, or terminations.

Pages I read

RFDH: Coupler·Divider·Combiner