Signal Generation
2025/06/16 10:38
Signal Generation and Frequency Sweeping Mechanism of RF Circuit in Anti-Drone Module:
Voltage-Controlled Oscillator (VCO):
The RF circuit generates the initial radio-frequency signal via a VCO, whose frequency can be dynamically adjusted by an input voltage (e.g., regulated by a potentiometer). For example, to cover a frequency range of 128K–2048kHz, the VCO outputs a continuously tunable sine wave under the control of the input voltage.
Frequency Sweeping Control:
The VCO is driven to perform frequency sweeping (sweeping) through a frequency control potentiometer or an external signal. This process causes the signal frequency to cycle within a preset range (e.g., 128K–2048kHz) at a specific rate, ensuring coverage of communication bands that drones may use (e.g., the common 2.4GHz, 5.8GHz, or lower sub-GHz bands).
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