Hi,
I want to combine RF and LO i.e. RF+LO and then input to my receiver which eventually squares and down-converts. Shall I used a combiner or a coupler? I have heard that combiner uses resistive or transformer technology and coupler uses capacitive coupling.

Also, to which category (discrete/HybridMIC) these components in this website belong? Do we just call them discrete RF/microwave components or something more specific?

http://www.e-meca.com/rf-power-divider.php