A microwave device, comprising a first unit, a second unit, and an antenna (800, 1100, 1200, 1303), wherein the second unit is configured to convert a baseband digital signal into an intermediate frequency analog signal; the first unit is configured to: receive the intermediate frequency analog signal, and convert the intermediate frequency analog signal into a radio frequency signal; the first unit is an outdoor unit and the second unit is an indoor unit or both the first unit and the second unit are one of an outdoor unit and an indoor unit; and the antenna (800, 1100, 1200, 1303) comprises a feed (800, 1101, 1201), a liquid crystal metasurface array (802, 1102, 1202), a liquid crystal bias control circuit, and a beam transformation structure, wherein the liquid crystal metasurface array (802, 1102, 1202) comprises MxN liquid crystal metasurface array units, and M and N are positive integers greater than or equal to 2; the feed (800, 1101, 1201) is configured to generate a radio frequency signal, illuminating the liquid crystal metasurface array; the liquid crystal bias control circuit is configured to: determine a to-be-adjusted beam angle, and load a voltage bias value on each liquid crystal metasurface array unit in the liquid crystal metasurface array (802, 1102, 1202) based on the beam angle; the liquid crystal metasurface array (802, 1102, 1202) is configured to: transmit the radio frequency signal, and generate a lateral offset of a feed phase center based on the voltage bias value; and the beam transformation structure is configured to emit the radio frequency signal transmitted through the liquid crystal metasurface array. the second unit is configured to convert a baseband digital signal into an intermediate frequency analog signal; the first unit is configured to: receive the intermediate frequency analog signal, and convert the intermediate frequency analog signal into a radio frequency signal; the first unit is an outdoor unit and the second unit is an indoor unit or both the first unit and the second unit are one of an outdoor unit and an indoor unit; and the antenna (800, 1100, 1200, 1303) comprises a feed (800, 1101, 1201), a liquid crystal metasurface array (802, 1102, 1202), a liquid crystal bias control circuit, and a beam transformation structure, wherein the liquid crystal metasurface array (802, 1102, 1202) comprises MxN liquid crystal metasurface array units, and M and N are positive integers greater than or equal to 2; the feed (800, 1101, 1201) is configured to generate a radio frequency signal, illuminating the liquid crystal metasurface array; the liquid crystal bias control circuit is configured to: determine a to-be-adjusted beam angle, and load a voltage bias value on each liquid crystal metasurface array unit in the liquid crystal metasurface array (802, 1102, 1202) based on the beam angle; the liquid crystal metasurface array (802, 1102, 1202) is configured to: transmit the radio frequency signal, and generate a lateral offset of a feed phase center based on the voltage bias value; and the beam transformation structure is configured to emit the radio frequency signal transmitted through the liquid crystal metasurface array.