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单谐振回路及耦合谐振回路在通信、电视及测量等设备中有广泛的应用。本文除对耦合双回路通频带(或失谐(?))的一般计算公式作了简单推导外,着重讨论了在耦合因数A为2.41时耦合双回路通频带的计算问题。在A为2.41时,a=1/2~(1/2)对应谐振曲线上三个频率点。因此,由a=δ的关系式,导出了(?)与A的一个新的函数关系式,它适用于A=2.41时耦合双回路通频带的计算。
Single resonant circuit and coupled resonant circuit in communications, television and measurement equipment has a wide range of applications. In addition to the simple calculation of the general formula for the passband (or detuning (?)) Of the coupled double loop, this paper focuses on the calculation of the passband of the coupled double loop when the coupling factor A is 2.41. When A is 2.41, a = 1/2 ~ (1/2) corresponds to the three frequency points on the resonance curve. Therefore, a new functional relation between (?) And A is derived from the relation of a = δ, which is suitable for the calculation of the passband of the coupled dual loop when A = 2.41.