Hybrid branchline couplers - A useful new class of directional couplers
Abstract
The hybrid branchline coupler consists of two transmission lines connected alternately by quarter-wavelength shunt and series branches. The analysis of this structure leads to a class of directional couplers of which the parallel transmission-line and the de Ronde strip-slot types may be regarded as special cases. From the precise design data thus available, a number of 3-dB strip-slot couplers have been built in C band and X band with a performance close to the predicted one.
- Publication:
-
IEEE Transactions on Microwave Theory Techniques
- Pub Date:
- October 1974
- DOI:
- 10.1109/TMTT.1974.1128365
- Bibcode:
- 1974ITMTT..22..864S
- Keywords:
-
- Couplers;
- Joints (Junctions);
- Microwave Transmission;
- Network Synthesis;
- Strip Transmission Lines;
- Branching (Physics);
- C Band;
- Coupling Circuits;
- Electrical Impedance;
- Frequency Response;
- Integrated Circuits;
- Performance Prediction;
- Superhigh Frequencies;
- Electronics and Electrical Engineering