Abstract
An analysis of the 3 dB lumped-element branchline directional coupler constructed using L-C and T networks is given. Matrices of lumped element capacitances and inductances in the form of low and high pass filters are equated to the matrices of the distributed element transmission lines at the centre frequency of operation, as a result of which design equations are derived. Using even and odd modes of excitation, frequency characteristics of the directional couplers are computed and compared to those of the coupler constructed using distributed element transmission lines.
Recommended Citation
Mgombelo, H. (1988). Computation of Frequency characteristics of lumped-Element 3 Db Branch line directional couplers. Tanzania Journal of Engineering and Technology (TJET), 12(2), 23-40. https://doi.org/https://doi.org/10.52339/tjet.v12i2.85
Publisher Name
University of Dar es Salaam