CALCULATION OF MICROSTRIP DIRECTIONAL COUPLERS WITH DISPERSION AND LOSSES IN TRANSMISSION LINES
Науковий журнал «Радіоелектроніка, інформатика, управління»
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CALCULATION OF MICROSTRIP DIRECTIONAL COUPLERS WITH DISPERSION AND LOSSES IN TRANSMISSION LINES |
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Romanenko, S. N.; Zaporizhian National Technical University, Ukraine Dmitrenko, V. P.; Zaporizhian National Technical University, Ukraine Voskoboynyk, V. A.; Zaporizhian National Technical University, Ukraine |
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splitting ratio, directional coupler, microstrip line, dispersion, losses |
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Simple analytical relations for calculating parameters of microstrip directional couplers are obtained. It is shown that depending on the power splitting ratio k in the output ports of the circuit the technological restrictions of couplers are changed. At k ≥1 for double-stab four-port directional coupler, unlike three- and four-stab couplers, the range of characteristic impedance satisfies the technological restrictions. However, at k <1 three- and four-stab directional couplers become more technological. Analytical formulas for high precision calculation of the dispersion of effective permittivity and losses in the substrate valid for the main microstrip T-wave in a wide frequency range are also presented. |
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Zaporizhzhya National Technical University 2014-01-24 12:09:02 |
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application/pdf http://ric.zntu.edu.ua/article/view/20710 |
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Radio Electronics, Computer Science, Control; No 2 (2013): Radio Electronics, Computer Science, Control |
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ru |
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Copyright (c) 2014 S. N. Romanenko, V. P. Dmitrenko, V. A. Voskoboynyk |
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