Patent ID: 9735470
Date: 2017-08-15
CPC Classifications: H01P,H01Q,H04B

Claim:
1. Apparatus for receiving radio frequency data signals transmitted in a plurality of frequency bands, said apparatus including a waveguide which is configured to at least receive some of said data signals, said waveguide includes a passage, said passage having a section which has a reduced cross sectional area compared to an upstream section of the waveguide passage so as to separate data signals received at a lower frequency band into a first set of data signals and data signals received at a higher frequency band into a second set of data signals and routing means are located on, and in communication with, the waveguide passage to allow the routing of said respective sets of data signals to respective processing means wherein the routing means for one of the sets of data signals are provided at a frustoconically shaped reducing portion of the passage whereat said reducing portion has an interior smooth surface which gradually and smoothly joins said section of the passage with the upstream section, said reducing portion located between and joining the said section of the passage with the reduced cross sectional area and the said upstream section of the passage.