Abstract

The monolithic design of the compact bandpass filter X-band is made on technology of multilayered printed circuit boards. A quarter-wave stripline resonators of the filter have two conductors divided by the layer prepreg having low parameters which is bonding together a design. This eliminates influence of prepreg on the characteristics of the devices, ensuring good repeatability of filters in mass production. For increase the high-frequency stopband of filter, one of the conductors of each resonator is cut in half by a transverse slit. The constructive sizes of the device were obtained by parametric synthesis using the electrodynamic analysis of its 3D model. The experimental data of five-order filter are in good agreement with the electromagnetic simulation of filters 3D model. An experimental device has a central frequency of the passband of 10 GHz and fractional bandwidth of 5.7%, its dimensions and weight are 18.0 × 5.4 × 2.1 mm and 0.5 g. The important advantage of the developed design is the possibility of its installation on the board using the surface mounting method.

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