摘要:
The present invention provides a harmonic suppression system, including: an interface connector, a baseband chip, an antenna, an antenna switch, at least two LC trap networks, a first differential SPMT switch, and a second differential SPMT switch, where the interface connector is connected to a common end of the first differential SPMT switch; a control port of the first differential SPMT switch is connected to a control port of the second differential SPMT switch, and a gating throw end of the first differential SPMT switch is separately connected to one end of each LC trap network in a one-to-one correspondence; the control port of the second differential SPMT switch is connected to the baseband chip, each gating throw end of the second differential SPMT switch is separately connected to the other end of each LC trap network in a one-to-one correspondence, and a common end of the second differential SPMT switch is connected to the baseband chip; the baseband chip is connected to the antenna switch; and the antenna switch is connected to the antenna.
摘要:
An antenna interface circuit can improve MIMO performance of a system. The antenna interface circuit includes a main connector and a single-pole double-throw switch, where a common contact of the main connector is used as a terminal of a main receiver; a normally-closed contact of the main connector is used as a terminal of a main antenna; a normally-open contact of the main connector is used as a terminal of an external antenna; a common contact of the single-pole double-throw switch is used as a terminal of a diversity receiver; a normally-closed contact of the single-pole double-throw switch is used as a terminal of a diversity antenna; a normally-open contact of the single-pole double-throw switch is connected to the normally-closed contact of the main connector; and when the common contact of the main connector is connected to the normally-open contact of the main connector, the common contact of the single-pole double-throw switch is connected to the normally-open contact of the single-pole double-throw switch.