Optimum Design of 3-Db Branch-Line Couplers Using Microstrip Lines

Microwave Theory and Techniques, IEEE Transactions on, Vol. 83, No. 8. (1983), pp. 674-678.

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Abstract

A computer-aided design is described that makes it possible to reduce the internal impedance levels of branch-line couplers so that they may be physically constructed by microstrip lines, where the Fletcher-Powell search method has been used to optimize the design. Because microstrip lines are severely restricted in their usable impedance range, the 3-dB couplers presented here should be useful for numerous balanced-type components such as balanced mixers. The validity of the design has been experimentally verified in the microwave and millimeter-wave region.

@article{citeulike:1942333, abstract = {A computer-aided design is described that makes it possible to reduce the internal impedance levels of branch-line couplers so that they may be physically constructed by microstrip lines, where the Fletcher-Powell search method has been used to optimize the design. Because microstrip lines are severely restricted in their usable impedance range, the 3-dB couplers presented here should be useful for numerous balanced-type components such as balanced mixers. The validity of the design has been experimentally verified in the microwave and millimeter-wave region.}, booktitle = {Microwave Theory and Techniques, IEEE Transactions on}, citeulike-article-id = {1942333}, journal = {Microwave Theory and Techniques, IEEE Transactions on}, keywords = {branch-line, coupler, microstrip}, number = {8}, pages = {674--678}, posted-at = {2007-11-20 08:40:09}, priority = {2}, title = {Optimum Design of 3-Db Branch-Line Couplers Using Microstrip Lines}, url = {http://ieeexplore.ieee.org/xpls/abs\_all.jsp?arnumber=1131568}, volume = {83}, year = {1983} }

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TY - JOUR ID - citeulike:1942333 L3 - citeulike-article-id:1942333 TI - Optimum Design of 3-Db Branch-Line Couplers Using Microstrip Lines T2 - Microwave Theory and Techniques, IEEE Transactions on JF - Microwave Theory and Techniques, IEEE Transactions on VL - 83 IS - 8 SP - 674 EP - 678 N2 - A computer-aided design is described that makes it possible to reduce the internal impedance levels of branch-line couplers so that they may be physically constructed by microstrip lines, where the Fletcher-Powell search method has been used to optimize the design. Because microstrip lines are severely restricted in their usable impedance range, the 3-dB couplers presented here should be useful for numerous balanced-type components such as balanced mixers. The validity of the design has been experimentally verified in the microwave and millimeter-wave region. KW - branch-line KW - coupler KW - microstrip PY - 1983/// UR - http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=1131568 ER -

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