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About the role of capacitance and inductance in LoRa radio frequency circuit [Copy link]

Please tell me the functions of L1, C4, and C5 in the receiving circuit, and the functions of L2, L5, C16, C15, C12, R3, C10, L3, C9, L4, C14, and C13 in the transmitting circuit. Thanks

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L1 and C4 should form a high-pass filter, and C5 should only block the DC current; The transmitting link L5 and C16 are notch filters, filtering about 125Mhz signals. The other C10, L13, C9 and L4 should be band-stopped. The filtered frequency band can be simulated. At the same time, L4/C14/C13 should also have an impedance matching function.   Details Published on 2019-7-4 23:22
 

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L1 and C4 should form a high-pass filter, and C5 should only block the DC current;

The transmitting link L5 and C16 are notch filters, filtering about 125Mhz signals. The other C10, L13, C9 and L4 should be band-stopped. The filtered frequency band can be simulated. At the same time, L4/C14/C13 should also have an impedance matching function.

This post is from RF/Wirelessly
 
 

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