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Dual-type Coupler
Apr 13, 2018

The two-branch directional coupler consists of a main line, a secondary wire and a two branch feeder, which is branched The length and spacing are 1/4 of the central wavelength, as shown in Figure 5-15. The characteristic impedance of the main line "①" is that the main line outlet line "②" has the characteristic impedance (k is the impedance transformation ratio), the characteristic impedance of the "④" of the Auxiliary line is "③", the characteristic impedance of the coupling end of the auxiliary line is z0p, and the characteristic impedance of the parallel connecting line is the same as that of the two branch lines.

耦合器


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