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SWR_Bridge_Trafo_3G.php    5076 Bytes    15-03-2024 20:55:24


A HF/VHF Bridge ... with the ETC1-1-13TR


SWR Measurement • Return Loss Bridge, 5 MHz ... 3 GHz








✈ Circuit Description




A Wheatstone Bridge ... and the ETC1-1-13TR


For maximum Flexibility, the case has 4 x SMA Connectors to allow for any HF Source, Load, Reference or Measurement Device (Powermeter, Spectrum Analyzer, ...) to be connected. R1 and R2 are 49.9 Ω, 1206, 0.1%, 25ppm (RG3216P-49R9-B-T5).

The ETC1-1-13TR is from MACOM.




✈ Performance




Insertion Loss (SRC - MEAS) is -12 dB @ 20 MHz when a Short is connected.
Changing to a Load, the level will drop by an additional 32 dB. This is also called Directivity or sometimes Isolation.




✈ Downloads








✈ Share your thoughts



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t1 = 6586 d

t2 = 191 ms

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