Dual-band lowpass/bandpass periodic-type microstrip filter with Long-Term-Evolution (LTE) service mitigation

Author

Gomez-Garcia, Roberto ; Loeches-Sanchez, R. ; Munoz-Ferreras, J.-M. ; Borrego, Jose P. ; Magalhaes, J.P. ; Carvalho, Nuno Borges ; Vieira, Jose M. N. ; Perez-Martinez, F.

Author_Institution

Dept. Signal Theor. & Commun., Univ. of Alcala, Alcala de Henares, Spain

fYear

2014

fDate

25-28 Feb. 2014

Firstpage

1

Lastpage

4

Abstract

In this paper, a new class of microstrip filter with dual-band lowpass/bandpass response is reported. It consists of a periodic-type circuit configuration made up of an original firstorder double-band lowpass/bandpass filtering cell. The operating principle of this lowpass/bandpass filter structure is explained, and guidelines for its systematic design are expounded. Besides, a four-stage prototype with 60-dB inter-band Long-Term-Evolution (LTE) service rejection is designed and simulated at the layout level for verification. This dual-function filter approach can find use in next-generation multi-purpose communications systems simultaneously operating for several standards, such as those handling UHF DVB-T signals - lowpass band - and other services - passband(s) - along with LTE interference mitigation.

Keywords

band-pass filters; low-pass filters; microstrip filters; passive filters; radiofrequency interference; LTE interference mitigation; LTE service rejection; band-pass filter; dual band filter; long term evolution service mitigation; low-pass filter; periodic type circuit; periodic type microstrip filter; Capacitors; Dual band; Integrated circuit modeling; Layout; Microstrip; Microwave circuits;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems (LASCAS), 2014 IEEE 5th Latin American Symposium on

Conference_Location

Santiago

Print_ISBN

978-1-4799-2506-3

Type

conf

DOI

10.1109/LASCAS.2014.6820252

Filename

6820252