Design of a bulk acoustic wave coupled-resonator filter application in the WLAN band (5.15 - 5.35 GHz)

Author

Shirakawa, A.A. ; Pham, J.-M. ; Jarry, P. ; Kerherve, E. ; Filho, H. Tertuliano

Author_Institution

IXL Microelectronics Lab., Bordeaux I Univ., Talence, France

fYear

2005

fDate

25-28 July 2005

Firstpage

117

Lastpage

120

Abstract

This paper presents the design of a bulk acoustic wave coupled-resonator filter (BAW-CRF) for application in the WLAN 802.11a European band (5.15 GHz 5.35 GHz). The presented design methodology allows retrieving the filter structure dimensions (layer thicknesses and electrode areas) based on the extraction of an equivalent network from Chebyshev expressions. The BAW CRF can be fabricated on top of silicon substrates. The designed filter consists in a very compact solution (180 μm × 115 μm), having 2 dB of insertion loss and 48 dB of attenuation at the rejection band.

Keywords

Chebyshev approximation; acoustic resonator filters; bulk acoustic wave devices; microwave filters; substrates; wireless LAN; 2 dB; 5.15 to 5.35 GHz; 802.11a European band; Chebyshev expressions; WLAN; attenuation; bulk acoustic wave coupled-resonator filter; equivalent network; insertion loss; rejection band; silicon substrates; Acoustic waves; Attenuation; Band pass filters; Chebyshev approximation; Design methodology; Electrodes; Network synthesis; Radio frequency; Resonator filters; Wireless LAN;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave and Optoelectronics, 2005 SBMO/IEEE MTT-S International Conference on

Print_ISBN

0-7803-9341-4

Type

conf

DOI

10.1109/IMOC.2005.1580095

Filename

1580095