What is the distance between directional couplers
The distance between directional couplers depends on wavelength and frequency—typically λ/4 to λ/2 (e.g., 7.5–15 cm for 1GHz signals). In RF systems, spacing is optimized for 20-30 dB isolation to prevent interference, with microstrip designs maintaining 0.1mm precision for 2-40GHz applications. Closer spacing (<5mm) may be used in high-density PCBs with 3dB coupling loss. What […]
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