Patent ID: 7782155
Filing Date: 2010-08-24
Classification: H01P,H03F

Abstract:
1. A monolithic circulator, intended to be connected to an antenna for transmitting and receiving high-frequency signals, comprising: a differential amplifier capable of providing a signal on an output of the circulator, said amplifier having a first and a second input and an output; and first and second 3 dB couplers, each of said first and second couplers comprising first, second, and third access terminals respectively, the second terminals of said first and second couplers being connected to an input of the circulator, the third terminals of said first and second couplers being connected to said first and second inputs of the amplifier respectively, the first terminals of said first and second couplers being respectively adapted to be connected to the antenna and to a charge element having an impedance close to that of the antenna.