Design Criteria and Performance Evaluation of TM01 Dielectric Resonators Cavities for Cellular Base Station Filters

Author

Macchiarella, Giuseppe ; D´Oro, Silvia Cavalieri

Author_Institution

Dipartimento di Elettronica e informazione del Politecnico di Milano, Piazza Leonardo da Vinci, 32 20133 Milano, ITALY. tel: +39 2 23993593 fax: +39 2 23993413, e-mail: macchiar@elet.polimi.it

Volume

3

fYear

1999

fDate

Oct. 1999

Firstpage

47

Lastpage

50

Abstract

This paper suggests to employ DRs operating on TM01, mode in high selectivity, low loss filters for radio mobile base stations (GSM, PCS); the use of TM01 mode instead of TE01, mode (which is more commonly adopted) allows some advantages: lower losses (when tanÂ¿ is not very low), smaller coupling apertures between cavities, larger couplings tunability. The paper describes criteria for dimensioning the TM01 DR cavity, which are based on the evaluation of resonant frequencies, unloaded Q and spurious resonances by means of a mode matching technique; a comparative analysis of the performances obtainable from the two modes (TM01, and TE01,) is also reported. Finally some results obtained from simulations of coupled cavities are shown

Keywords

Apertures; Base stations; Dielectrics; GSM; Performance analysis; Performance evaluation; Personal communication networks; Resonance; Resonant frequency; Resonator filters;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference, 1999. 29th European

Conference_Location

Munich, Germany

Type

conf

DOI

10.1109/EUMA.1999.338524

Filename

4139547