阅读说明：本技术 一种射频电路和可调变压器 (Radio frequency circuit and adjustable transformer ) 是由 韩科锋 卢磊 于 2019-03-29 设计创作，主要内容包括：本申请提供一种射频电路和可调变压器,涉及电子技术领域,用于实现5G毫米波下不同频段的信号的接收或发送。所述射频电路包括：可调变压器,第一级放大器和第二级放大器,所述第一级放大器通过所述可调变压器与所述第二级放大器耦合,所述可调变压器的带宽可调,当所述可调变压器的带宽被调节时,使得所述射频电路的工作频段覆盖N258频段和N257频段、或者N258频段和N261频段。(The application provides a radio frequency circuit and an adjustable transformer, relates to the technical field of electronics, and is used for receiving or transmitting signals of different frequency bands under 5G millimeter waves. The radio frequency circuit includes: the first-stage amplifier is coupled with the second-stage amplifier through the adjustable transformer, the bandwidth of the adjustable transformer is adjustable, and when the bandwidth of the adjustable transformer is adjusted, the working frequency band of the radio frequency circuit covers an N258 frequency band and an N257 frequency band or an N258 frequency band and an N261 frequency band.)