Patent ID: 9203596
Filing Date: 2015-12-01
Classification: H04B,H04L

Abstract:
1. A tunable diplexer comprising: a high band port, a low band port, and an antenna port; a high pass filter coupled between the high band port and the antenna port and adapted to pass signals falling within a high pass band between the high band port and the antenna port while attenuating signals falling outside of the high pass band; and a low pass filter coupled between the low band port and the antenna port and adapted to pass signals falling within a low pass band between the low band port and the antenna port while attenuating signals falling outside the low pass band, wherein the low pass filter includes a tunable stop band zero adapted to selectively attenuate signals falling within a low stop band and tuned such that the low stop band is centered about one or more harmonic components of a signal passed from the low band port to the antenna port, wherein the one or more harmonic components are within the high pass band.