Broadband transmit-receive switch integrated with absorption network

The invention discloses a broadband transmit-receive switch integrated with an absorption network, which at least comprises a transmit-receive switch circuit and the absorption network, and is characterized in that the absorption network is integrally arranged at the input front end of the transmit-receive switch circuit and is used for absorbing parasitic parameters of a transistor in the transmit-receive switch circuit so as to improve insertion loss and reflection loss of the transmit-receive switch; the working bandwidth of the transceiving switch is expanded; the transmit-receive switch circuit is a series-parallel single-pole double-throw transmit-receive switch circuit and is composed of transistors M1, M2, M3, M4, M5 and M6, microstrip lines TL1, TL2, TL3, TL4, TL5 and TL6 and a capacitor C1. Experiments prove that by adopting the technical scheme of the invention, the working bandwidth of the transceiving switch is widened, the insertion loss is reduced, and the input and output reflection coefficien