Novel Design Approach for Ultra Compact, High Rejection LTCC Balanced Filter

Author

Yatsenko, Andriy ; Heyen, Johann ; Sevskiy, Georgiy ; Heide, Patric ; Vossiek, Martin

Author_Institution

EPCOS AG, Product Dev. Modules, Munich

fYear

2008

fDate

27-31 Oct. 2008

Firstpage

226

Lastpage

229

Abstract

In this paper a new approach for miniaturizing multilayer LTCC designs (Low Temperature Co-Fired Ceramics is proposed. Using the stacking options inside LTCC more consequently, a new very compact high-rejection balanced bandpass filter for WirelessLAN (based on IEEE 802.11a standard) is realized. The demonstrated filter performance is a very promising. With only 2.7 dB insertion loss in the band of interest and excellent out-of-band attenuation it occupies area less than 1.8 mm². Compared to designs with the same dielectric constant this downsizes by factor of two the required area without degrading the performance. The correlation between measurement and simulation results is a very good.

Keywords

band-pass filters; crystal filters; multilayers; permittivity; wireless LAN; WirelessLAN; bandpass filter; dielectric constant; insertion loss; low temperature cofired ceramics; multilayer designs; out-of-band attenuation; stacking; Attenuation; Band pass filters; Ceramics; Degradation; Dielectric constant; Dielectric measurements; Insertion loss; Nonhomogeneous media; Stacking; Temperature;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference, 2008. EuMC 2008. 38th European

Conference_Location

Amsterdam

Print_ISBN

978-2-87487-006-4

Type

conf

DOI

10.1109/EUMC.2008.4751429

Filename

4751429