Patent ID: 7929932

Claim:
A radio, comprising: an antenna to receive signals; and a front end filter coupled to the antenna that is a cascade of at least two filters that separates the received signals into two or more bands, wherein the cascade of at least two filters includes a first filter to perform a low pass filtering function using four serially connected inductors with capacitors coupling inductor terminals to a ground power conductor and a second filter to separate the received signals into two different frequency bands, wherein the second filter comprises: a first inductor having a first terminal connected to an output of the first filter; a first capacitor having a first terminal connected to a second terminal of the first inductor; a second inductor in parallel with a second capacitor and coupled between a second terminal of the first capacitor and the ground power conductor; a third inductor having a first terminal coupled to the second terminal of the first capacitor; and a third capacitor coupled between the second terminal of the third inductor and the ground power conductor.