diplexer → διπλέκτης

[wings]

diplexer → διπλέκτης

A diplexer is a passive device that implements frequency domain multiplexing. Two ports (e.g., L and H) are multiplexed onto a third port (e.g., S). The signals on ports L and H occupy disjoint frequency bands. Consequently, the signals on L and H can coexist on port S without interfering with each other.

Typically, the signal on port L will occupy a single low frequency band and the signal on port H will occupy a higher frequency band. In that situation, the diplexer consists of a lowpass filter connecting ports L and S and high pass filter connecting ports H and S. Ideally, all the signal power on port L is transferred to the S port and vice versa. All the signal power on port H is transferred to port S and vice versa. Ideally, the separation of the signals is complete. None of the low band signal is transferred from the S port to the H port. In the real world, some power will be lost, and some signal power will leak to the wrong port.
Television diplexer consisting of a high-pass filter (left) and a low-pass filter (right). The antenna is connected to the screw terminals to the left of center.

The diplexer, being a passive device, is reciprocal: the device itself doesn't have a notion of input or output.

The diplexer is a different device than a passive combiner or splitter. The combiner is not frequency selective. There is also a power "loss" difference - a combiner takes all the power delivered to the S port and equally divides it between the A and B ports. A diplexer does not.

A diplexer multiplexes two ports onto one port, but more than two ports may be multiplexed: a three-port to one-port multiplexer is known as a triplexer.

Source: wikipedia

[wings]

Επομένως, triplexer είναι ο τριπλέκτης; Δεν βρίσκω αναφορές στο διαδίκτυο.

[valeon]

Έκανες δουλειά! Μπράβο!

Βέβαια, η Wikipedia συνεκδοχικά μιλάει για τις θύρες (ports) αλλά είναι τα σήματα που διπλέκονται, τριπλέκονται, τετραπλέκονται και, γενικά, πολυπλέκονται.
Γενικά:
multiplexer: πολυπλέκτης - ρήμα multiplex: πολυπλέκω (σήματα)

Ειδικά (ανάλογα με το πόσα είναι τα πολυπλεκόμενα σήματα):
diplexer: διπλέκτης
triplexer: τριπλέκτης
quadruplexer: τετραπλέκτης
quintplexer: πενταπλέκτης
...

Ικανοποιήθηκες τώρα; :-)

[wings]

Ναι, ικανοποιήθηκα, Κώστα, και σ' ευχαριστώ πολύ. :-)

Δες γιατί:

multiplex → πολυπλέκω (σήματα)
multiplexer → πολυπλέκτης
triplexer → τριπλέκτης
quadruplexer → τετραπλέκτης
quintplexler → πενταπλέκτης