The invention discloses a low-power-consumption short-wave portable
antenna tuner and a working method thereof. The
antenna tuner comprises a hardware module and a
software module. The working method comprises the following steps: when the short-wave radio
station works normally, all circuits are in a normal working state; after tuning of the short-wave portable
antenna tuner is finished, the FPGA performs zero clearing
processing on the control pin of the magnetic latching
relay, so that the control pin is in a state of lowest
power consumption; when the short-wave portable antenna
tuner is in a normal working state, the short-wave portable antenna
tuner works normally if receiving a radio
station action instruction within a set time, otherwise, the hardware module and the
software module enter a dormant state, the FPGA
internal logic only keeps a dormant awakening module, and a trigger mechanism of a falling edge is started; and when a radio
station sends data to the short-wave portable antenna
tuner, the FPGA quickly awakens all
hardware modules and
software modules in a dormant state, so that the short-wave portable antenna tuner enters a normal working state. The invention has the advantages of low
power consumption,
simple circuit structure, few discrete components, low cost and 100% localization.