Patent ID: 8362834

Claim:
An electronic circuit for reducing leakage of radio frequency signals from a power amplifier of a wireless communication device, comprising: a printed circuit board (PCB) having the power amplifier mounted on the PCB; a first electrical track in the PCB providing part of a connection from a high band power input terminal of the power amplifier to a battery terminal; a first capacitor connected to the first electrical track, the high band power input terminal and a ground reference in the PCB; a first high filter choke having a first end connected to the first electrical track and a second end connected to the battery terminal; a second electrical track connected to a low band power input terminal of the power amplifier; and a circuit implemented on the PCB and connected to an output terminal of the power amplifier for an output signal from the power amplifier, the circuit comprising a first filter and a low pass filter, the first filter connected to a 0 ohm resistor which is connected to the low pass filter, wherein the 0 ohm resistor provides a delay element for the output signal to reduce harmonics in the output signal; and the first capacitor reduces transmission of radio frequency signals from the high band input terminal to the battery terminal.