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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Study of the effects of applying higher symmetries to printed filters

Medran del Rio, Jose Luis January 2018 (has links)
In recent years, a new field of study has arisen around theapplication of the so-called higher symmetries to structures that werealready thought to be completely studied and with no room forimprovement in terms of benefits.There are two types of higher symmetries, named glide and twistsymmetries. The objective of this Master thesis is the study of theeffects coming from the application of the glide symmetry on aprinted filter in microstrip technology and its comparison with afilter with conventional reflective symmetry.The filter was adapted to the glide characteristics and we provide itsbehavior from different points of view with the purpose of reachinga better understanding of the consequences of applying the glidesymmetry on this type of printed filters.Three prototypes were manufactured and measured to validate thesimulated results. / Under senare år har ett nytt forskningsfält uppkommit genom applikationen av högre symmetrier till strukturer som redan studerats extensivt. Det finns två typer av högre symmetrier och dessa kallas glid- och vridsymmetrier. Målet med detta masterexamensarbete är att studera effekten som kommer från applikationen av glidsymmetri på ett filter, implementerat i mikrostripsteknik. Jämförelse med filtret med enbart reflektionssymmetri görs också. Glidsymmetri har introducerats i filtret och vi undersöker filtrets beteende från en rad olika synvinklar för att uppnå en bättre förståelse för konsekvenserna av glidsymmetri för den här typen av tryckta (”printed”) filter. Flera prototyper har tillverkats och mätts för att validera de simulerade resultaten.

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