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Stripline Quadrature Coupler Design

In our article, we tried to solve the issue of the bulkiness of directional couplers implemented on substrates with a low permittivity and operating frequency. The paper describes the results of research on the miniaturization of a flat directional coupler. We have briefly described the steps that a designer must follow to create a compact power divider. Due to the fact that the proposed device was manufactured and measured on a vector network analyzer, we were able to confirm the effectiveness of our approach. This is how the 1 GHz power divider was designed and manufactured. Due to the use of tape structures, it was possible to reduce its area by 75% compared to the traditional implementation. From the negative, there was a decrease in the band by 4.4% and a complication of the topology of the product.