Compact combline filter with improved cross coupling assembly and temperature compensation

Author

Höft, Michael ; Burger, Stefan ; Magath, Thore ; Bartz, Olaf

Author_Institution

Panasonic Electron. Devices Eur. GmbH, Lueneburg

fYear

2006

fDate

12-15 Dec. 2006

Firstpage

781

Lastpage

784

Abstract

A base-station bandpass filter using compact stepped combline resonators is presented. The bandpass filter consists of 4 resonators, has a center-frequency of 2.0175 GHz, a bandwidth of 15 MHz and cross-coupling by a cascaded quadruplet for improved blocking performance. The combline resonators have different size. Therefore, different temperature compensation arrangements need to be applied to guarantee stable performance in the temperature range from -40deg C to 85deg C. The layout will be discussed. A novel cross coupling assembly is introduced. Furthermore, measurement results are shown.

Keywords

band-pass filters; compensation; resonator filters; base-station bandpass filter; cascaded quadruplet; compact combline filter; compact stepped combline resonators; cross coupling assembly; temperature -40 C to 85 C; temperature compensation; Aluminum; Assembly; Band pass filters; Conducting materials; Electromagnetic waveguides; Iron; Microwave filters; Resonant frequency; Resonator filters; Temperature;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference, 2006. APMC 2006. Asia-Pacific

Conference_Location

Yokohama

Print_ISBN

978-4-902339-08-6

Electronic_ISBN

978-4-902339-11-6

Type

conf

DOI

10.1109/APMC.2006.4429531

Filename

4429531