Antenna Switching System and Method

摘要

The present invention is applicable to the field of mobile terminals and provides an antenna switching system and method. The antenna switching system includes a radio-frequency transceiver circuit, a primary antenna, and a parasitic antenna, where the primary antenna is connected to the radio-frequency transceiver circuit, and further includes a switch circuit, configured to connect, when the parasitic antenna is used to receive or send a radio-frequency signal, the parasitic antenna and the radio-frequency transceiver circuit. If the parasitic antenna is grounded, the parasitic antenna may be configured to spread a spectrum. In addition, when carrier aggregation is needed, the parasitic antenna is connected to the radio-frequency transceiver circuit, so as to become an independent receive or transmit antenna.

主权项

1. An antenna switching system, comprising:
a radio-frequency transceiver circuit; a primary antenna connected to the radio-frequency transceiver circuit; a parasitic antenna connected to the radio-frequency transceiver circuit; and a switch circuit, configured to connect, in response to the parasitic antenna being used to receive or send a radio-frequency signal and a switching instruction sent by a modem of a mobile terminal being received, the parasitic antenna specified by the switching instruction and the radio-frequency transceiver circuit, and in response to only the primary antenna being used to receive or send a radio-frequency signal, to cut off a connection between the parasitic antenna and the radio-frequency transceiver circuit, and ground the parasitic antenna.