New high-directivity coupler design with coupled spurlines
Authors:
- 26 February 2004
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Microwave and Wireless Components Letters
- Vol. 14 (2) , 65-67
Abstract
A new high-directivity coupler using coupled spurlines is proposed. The effective capacitances of coupled spurlines generate an isolation zero at any desired frequency due to their equalization effect on the odd-mode and even-mode phase velocities. The measurement results demonstrate an improved performance over the conventional parallel-line coupler in terms of the isolation and the coupling flatness.Keywords
This publication has 5 references indexed in Scilit:
- Design of an Overlay Directional Coupler by a Full-Wave Analysis2005
- A high-directivity microstrip directional coupler with feedback compensation2003
- Microstrip directional couplers with ideal performance via single-element compensationIEEE Transactions on Microwave Theory and Techniques, 1999
- Synthesis, design, and construction of ultra-wide-band nonuniform quadrature directional couplers in inhomogeneous mediaIEEE Transactions on Microwave Theory and Techniques, 1989
- Design of an Overlay Directional Coupler by a Full-Wave AnalysisIEEE Transactions on Microwave Theory and Techniques, 1983