A 6 to 20 GHz planar balun using a Wilkinson divider and Lange couplers
- 9 December 2002
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- p. 865-868 vol.2
- https://doi.org/10.1109/mwsym.1991.147144
Abstract
A simple broadband microstrip balun has been developed using a Wilkinson divider for power splitting followed by Lange couplers for phase shifting. This planar balun structure can be easily fabricated on an alumina substrate using a conventional MIC (microwave integrated circuit) process without the need for multilayer or suspended substrate techniques. The inherent wideband characteristics of the Wilkinson divider and Lange couplers and the symmetry of the structure have resulted in good broadband amplitude and phase balance performance. The balun fabricated on 10 mil alumina has an amplitude imbalance of +or-0.6 dB, average phase imbalance of 7 degrees , and a maximum total insertion loss of 1.2 dB from 6 to 20 GHz.<>Keywords
This publication has 3 references indexed in Scilit:
- A microstrip re-entrant mode quadrature coupler for hybrid and monolithic circuit applicationsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- A monolithic or hybrid broadband compensated balunPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- A Class of Broadband Three-Port TEM-Mode HybridsIEEE Transactions on Microwave Theory and Techniques, 1968