POLARIZATION-PRESERVING WAVEGUIDE FILTER FOR ASTRONOMICAL APPLICATIONS

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dc.contributor.advisorZaki, Kawtharen_US
dc.contributor.authorVanin, Felice Mariaen_US
dc.contributor.departmentElectrical Engineeringen_US
dc.contributor.publisherDigital Repository at the University of Marylanden_US
dc.contributor.publisherUniversity of Maryland (College Park, Md.)en_US
dc.date.accessioned2006-02-04T06:58:45Z
dc.date.available2006-02-04T06:58:45Z
dc.date.issued2005-11-29en_US
dc.description.abstractAs part of NASA's Beyond Einstein Program, the characterization of the Cosmic Background polarization has become a high priority for NASA. Since 2002, the efforts in which NASA is engaged are the first steps in the development of the instrumentation to achieve this vision. The critical systems that have previously caused the most losses have to be replaced. Microwave waveguide components are ideal to replaces old systems, improving accuracy of measurement and reducing the losses. In this work, a novel microwave waveguide filter and transformer are presented and discussed. The filter has been designed with 30% fractional bandwidth, guaranteeing extreme stop-band performances by using a quadruple ridge waveguide cross section. The waveguide component exhibits four-fold-symmetry preserving the dual polarization state of the electromagnetic field and resulting ideal for astronomical detections. Moreover, the important suppression of the fundamental mode re-resonance by using attenuation zeros is also discussed.en_US
dc.format.extent1998835 bytes
dc.format.mimetypeapplication/pdf
dc.identifier.urihttp://hdl.handle.net/1903/3115
dc.language.isoen_US
dc.subject.pqcontrolledEngineering, Electronics and Electricalen_US
dc.subject.pqcontrolledPhysics, Astronomy and Astrophysicsen_US
dc.subject.pquncontrolledfilteren_US
dc.subject.pquncontrolledwaveguideen_US
dc.subject.pquncontrolledridgeen_US
dc.subject.pquncontrolledpolarizationen_US
dc.subject.pquncontrolledstop-banden_US
dc.subject.pquncontrolledtransformer;en_US
dc.titlePOLARIZATION-PRESERVING WAVEGUIDE FILTER FOR ASTRONOMICAL APPLICATIONSen_US
dc.typeThesisen_US

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