Multiband diplexer and broadband antenna comprising same

Abstract

A multiband diplexer for an antenna to separate a multiband wireless signal includes a first signal passing unit connected to a side of a single feed horn of the antenna and configured to pass a first band signal and a second signal passing unit positioned coaxially with the first signal passing unit and configured to pass a second band signal, and the multiband diplexer is configured to separate the first band signal and the second band signal from a signal received by the single feed horn, in which at least one of the first signal passing unit and the second signal passing unit is configured to suppress a higher order mode.

Dependencies are inferred from the claim text.