Compact Dual-Band and Wideband Filters With Resonant Apertures in Rectangular Waveguide
Joaquin F. Valencia Sullca, Santiago Cogollos, Vicente E. Boria, M. Guglielmi
Abstract
The objective of this article is to describe a new family of microwave bandpass filters in the rectangular waveguide based on resonant apertures, which can be used to implement both single- and dual-band transfer functions. The use of capacitive stubs and a staircase configuration is also discussed in order to enhance the out-of-band response and the selectivity of the filter with respect to the state of the art. Finally, simulations are compared with measured results, showing very good agreement, thereby fully validating both the new filter topologies and the design procedure.
Topics & Concepts
Band-pass filterWidebandWaveguide filterMulti-band deviceCapacitive sensingWaveguideMicrowavePrototype filterTransfer functionElectronic engineeringFilter (signal processing)PassbandOpticsTopology (electrical circuits)PhysicsAcousticsEngineeringElectrical engineeringTelecommunicationsFilter designAntenna (radio)Microwave Engineering and WaveguidesAdvanced Antenna and Metasurface TechnologiesAntenna Design and Analysis