Design and Fabrication of 3-D Printed Inline Coaxial Filters With Improved Stopband
Giuseppe Venanzoni, Cristiano Tomassoni, Marco Dionigi, M. Mongiardo, Roberto Sorrentino
Abstract
This article presents a new class of filters, conceived for the fabrication with additive manufacturing technologies, with a wide stopband. The resonators are made of a coaxial line where supports are the coupling elements between them. The wide stopband is obtained using two different solutions. The first is the use of stepped-impedance resonators, whereas the second is the use of quarter wavelength resonators. Several prototypes have been built, and the experimental results show the validity of the solution.
Topics & Concepts
StopbandResonatorFabricationCoaxialMaterials scienceElectrical impedanceElectronic engineeringDistributed element filterFilter (signal processing)AcousticsCoupling (piping)OptoelectronicsPrototype filterLow-pass filterEngineeringElectrical engineeringPhysicsComposite materialPathologyAlternative medicineMedicineMicrowave Engineering and WaveguidesAdvanced Antenna and Metasurface TechnologiesAntenna Design and Analysis