| 摘要 |
A monolithic circulator, intended to be connected to an antenna for transmitting and receiving high-frequency signals includes a differential amplifier adapted to provide a signal on an output of the circulator. The amplifier has a first and a second input and an output. First and second 3dB couplers each have first, second, and third access terminals respectively. The second terminals of the first and second couplers are connected to an input E of the circulator. Each third terminal is connected to the first and second inputs of the amplifier respectively. The first terminals are respectively intended to be connected to the antenna and to a charge element having an impedance close to that of the antenna.
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