Patent ID: 6496708
Filing Date: 2002-12-17
Classification: H03H,H04B

Abstract:
A radio frequency (RF) coupler apparatus comprising:a termination device; a first coupler, the first coupler having first and second coupling elements, the first coupling element to pass a first RF signal having a frequency in a first frequency band, the second coupling element to couple the first RF signal passed by the first coupling element, the second coupling element coupled in series with the termination device; and a second coupler, the second coupler having first and second coupling elements, the first coupling element of the second coupler to pass a second RF signal having a frequency in a second frequency band, the second coupling element of the second coupler to couple the second RF signal passed by the first coupling element of the second coupler, the second coupling element of the second coupler coupled in series with the second coupling element of the first coupler.