Design of Dual-Band Two-Branch-Line Couplers with Arbitrary Coupling Coefficients in Bands

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2014
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Abstract
A new approach to design dual-band two-branch couplers with arbitrary coupling coefficients at two operating frequency bands is proposed in this article. The method is based on the usage of equivalent subcircuits input reactances of the even-mode and odd-mode excitations. The exact design formulas for three options of the dual-band coupler with different location and number of stubs are received. These formulas permit to obtain the different variants for each structure in order to select the physically realizable solution and can be used in broad range of frequency ratio and power division ratio. For verification, three different dual-band couplers, which are operating at 2.4/3.9 GHz with different coupling coefficients (one with 3/6 dB, and 10/3 dB two others) are designed, simulated, fabricated and tested. The measured results are in good agreement with the simulated ones.
Reference Key
prudyus2014designradioengineering Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Prudyus, I.;Oborzhytskyy, V.;
Journal radioengineering
Year 2014
DOI
DOI not found
URL
www.radioeng.cz/fulltexts/2014/14_04_1099_1108.pdf
Keywords
Medicine Chemical technology Electrical engineering. Electronics. Nuclear engineering Science telecommunication mathematics nuclear and particle physics. atomic energy. radioactivity

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