Multilayer LTCC bandpass filter design

Author

Gozhenko, Vladyslav ; Przadka, Andreas ; Hagn, Peter

Author_Institution

EPCOSAG, Munich

fYear

2007

fDate

9-12 Oct. 2007

Firstpage

540

Lastpage

543

Abstract

This paper describes the design and performance of a band-pass filter for wireless communication systems implemented in a low temperature co-fired ceramic (LTCC) substrate. The designed filter provides enhanced stopband characteristics and occupies a small volume in the substrate. The proposed filter shows low insertion loss in the 1710-1910 MHz band and offers high rejection at 824-915 MHz, at the harmonic frequencies and for the Bluetooth/WLAN (IEEE 802.11 b/g) band (2400... 2500 MHz). For the passband the measured insertion loss was better than -1 dB. The rejection for 824...915 MHz was more than 15 dB and for the harmonics more than 30 dB. For the Bluetooth/WLAN band the rejection was more than -20 dB.

Keywords

Bluetooth; UHF filters; band-pass filters; cryogenic electronics; crystal filters; radiocommunication; wireless LAN; Bluetooth; IEEE 802.11 b/g; LTCC; WLAN; bandpass filter design; frequency 1710 MHz to 1910 MHz; frequency 824 MHz to 915 MHz; low temperature co-fired ceramic substrate; stopband characteristics; wireless communication systems; Band pass filters; Bluetooth; Ceramics; Frequency; Insertion loss; Nonhomogeneous media; Power harmonic filters; Temperature; Wireless LAN; Wireless communication; Filters; LTCC; multilayer circuits;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference, 2007. European

Conference_Location

Munich

Print_ISBN

978-2-87487-001-9

Type

conf

DOI

10.1109/EUMC.2007.4405247

Filename

4405247