Patent ID: 7385456

Claim:
A power absorber for receiving a signal having a fundamental frequency comprising: an input end for receiving the signal; a first PIN diode circuit having a first end electrically connected to the input node and a second end, the first PIN diode circuit comprising first and second PIN diodes connected in series and a choke connected in parallel with the second PIN diode; a load resistance having a first end electrically connected to the second end of the first PIN diode circuit and a second end electrically connected to a reference voltage; a quarter wave transmission line having a first end electrically connected to the input node and a second end, the quarter wave transmission line having an electrical link that is one-quarter of the wavelength of the fundamental frequency; a second PIN diode circuit having an input electrically connected to the second end of the quarter wave transmission line and output electrically connected to the reference voltage, the second PIN diode circuit comprising at least one PIN diode; and a first choke in parallel with the load resistor.