MULTI-WAY SWITCH, RADIO FREQUENCY SYSTEM, AND WIRELESS COMMUNICATION DEVICE
FIG3 is a schematic structural diagram illustrating a 4P6T switch according to an embodiment of the disclosure  FIG2 is a schematic structural diagram illustrating a simplified 4P6T switch according to an embodiment of the disclosure
In one possible implementation, in addition to the two first T ports, the six T ports further include four second T ports. Each of the four second T ports is individually coupled with a corresponding P port of the four P ports. That is, the four second T ports are coupled with the four P ports in one-to-one correspondence. T ports at the same frequency band among the four second T ports are coupled with different P ports. Each of the four P ports is configured to be coupled with a corresponding antenna of the four antennas, that is, one P port is coupled with one antenna and any two P ports are configured to be coupled with different antennas. As illustrated in FIG3, the two first T ports can support a transmission function (that is, a signal transmission function) and the four second T ports can support only a reception function (that is, a signal reception function).  "P port" in embodiments of the disclosure is the abbreviation of "pole port", which refers to ports coupled with antennas of the multi-way switch. "T port" in embodiments of the disclosure is the abbreviation of "throw port", which refers to ports coupled with radio frequency modules of the multi-way switch. The multi-way switch is a 4P6T switch for example. "Module" herein can refer to circuits and any combination of related components. As illustrated in FIG2 for example, the four P ports are embodied as P port 1, P port 2, P port 3, and P port 4, and the six T ports are embodied as T port 1, T port 2, T port 3, T port 4, T port 5, and T port 6. Specifically, as illustrated in FIG2, T port 1 extends to the right via a first horizontal line and intersects with a third vertical line at a real point a, and then via real point a, T port 1 is respectively coupled with P port 1, P port 2, P port 3, and P port 4. Correspondingly, T port 2 extends to the right via a second horizontal line and intersects with a second vertical line at a real point b, and then via real point b, T port 2 is respectively coupled with P port 1, P port 2, P port 3, and P port 4. For example, assume that the multi-way switch includes six T ports, m=2 (that is, the six T ports include two first T ports), and the multi-way switch includes field-effect transistors; among the six T ports, if each of the two first T ports is fully coupled with the four P ports, and each of four second T ports is coupled with one corresponding P port, as illustrated in FIG2 of a schematic structural diagram of the multi-way switch, the number of the MOS transistors of the multi-way switch is 6+(2∗4+(6-2)∗1)∗3+4=46.
schematic structural diagram
2
port
['1. A multi-way switch (10), comprising: six T ports and four P ports, the six T ports comprising two first T ports, and each of the two first T ports being coupled with all of the four P ports; the two first T ports supporting only a transmission function; and the multi-way switch (10) being configured to be coupled, through said T ports, with a radio frequency circuit (30) and, through said P ports, with an antenna system (20) of a wireless communication device (100) operable in a dual-frequency dual-transmit mode, and the antenna system (20) comprising four antennas corresponding to the four P ports, each of the four P ports being configured to be coupled with a corresponding antenna of the four antennas; characterized in that the six T ports further comprise four second T ports; each of the four second T ports is individually coupled with only one corresponding P port of the four P ports, and T ports at the same frequency band among the four second T ports are coupled with different P ports; and the second T ports support only a reception function.']