NB-Iot module

The invention discloses an NB-Iot (Narrow Band Internet of Things) module. The circuit is improved, a 26MHZ crystal oscillator is adopted for frequency multiplication to generate 824Mhz-960Mhz frequency, meanwhile, a plurality of pi-type matching circuits are utilized for adjusting mismatching, it is guaranteed that the phase and the frequency of the designed circuit both meet the emission requirement, the dual-emission circuit is integrated to meet the high-frequency signal emission requirement and the low-frequency signal emission requirement at the same time, the circuit integration degree is increased, and the cost is reduced. 本发明公开了一种NB-Iot模组；通过改进电路，采用26MHZ晶振倍频产生824M~960Mhz的频率，同时利用多个π型匹配电路调节失配的匹配，保证所设计电路的相位和频率都匹配发射需求，集成双发射电路来同时满足高频率和低频率的信号发射需求，增加电路集成度，降低成本。