Multi section Directional Coupler help
时间：04-06
整理：3721RD
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Hi,
In case of a multi section coupler, why has to be coupling C dB more for the first and the last sections(if identical) than the required coupling ?
Foe ex: for a 10dB coupler, the sections 1 and 3 have a coupling of 15.8dB?
In case of a multi section coupler, why has to be coupling C dB more for the first and the last sections(if identical) than the required coupling ?
Foe ex: for a 10dB coupler, the sections 1 and 3 have a coupling of 15.8dB?