Patent ID: 7106149

Claim:
A tuneable switchable bandpass filter for a first and second frequency range having an input, an output, a first primary resonant circuit and a first secondary resonant circuit for providing a signal at the first frequency range, a second primary resonant circuit and a second secondary resonant circuit for providing a signal at the second frequency range, and a switch moveable between a first open position and a second closed position wherein upon said switch being in said first open position said first primary resonant circuit and said first secondary resonant circuit are coupled between said input and said output to provide said signal at said first frequency range and upon said switch being in said second closed position, said second primary resonant circuit and said second secondary resonant circuit are coupled between said input and said output to provide said signal at said second frequency, wherein the first and the second secondary resonant circuits are non-switchably connected to one another at the output via coupling elements.