Stepped-Impedance Based Dual-Band and Dual-Function Balun for 20 / 44 GHz Applications

Conference: EuCAP 2009 - 3rd European Conference on Antennas and Propagation
03/23/2009 - 03/27/2009 at Berlin, Germany

Proceedings: EuCAP 2009

Pages: 4Language: englishTyp: PDF

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Zhang, Hualiang; Xin, Hao (ECE Department, University of Arizona, 1230 E. Speedway Blvd., Tucson AZ 85719, USA)

Dual-band baluns with impedance transforming properties are discussed in this paper for millimeter-wave applications. Based on the even-odd mode analysis and ABCD-matrix, specific design equations are given for the proposed structure. A prototype working at 20 / 44 GHz is presented. The simulations results match well with the theoretical predictions. It is then fabricated and tested. Measurement results verify theoretical predictions.