Dual-band upconversion Gilbert mixer utilizing an LC current mirror

Author

Syu, Jin-Siang ; Meng, Chinchun ; Yen, Ying-Chieh ; Huang, Guo-Wei

Author_Institution

Dept. of Commun. Eng., Nat. Chiao Tung Univ., Hsinchu

fYear

2008

fDate

16-20 Dec. 2008

Firstpage

1

Lastpage

4

Abstract

Dual-band transceivers are widely researched, especially for WLAN applications. A conventional dual-band system needs two sets of mixers for both frequency bands. For hardware integration and cost reduction, a single-stage mixer was reused with a subsequent dual-band filter or two single-band filters. However, extra loss is inevitable when using passive filters. In spite of previous solutions, a Gilbert mixer with a dual-band LC current mirror combines differential output currents with extra gain improvement at two designated frequency bands.

Keywords

mixers (circuits); passive filters; WLAN application; cost reduction; dual band LC current mirror; dual band filter; dual band system; dual band transceivers; dual band upconversion Gilbert mixer; frequency bands; gain improvement; hardware integration; passive filters; single band filters; single stage mixer; Band pass filters; Capacitors; Dual band; Germanium silicon alloys; Heterojunction bipolar transistors; Inductors; Mirrors; Radio frequency; Silicon germanium; Wireless LAN;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference, 2008. APMC 2008. Asia-Pacific

Conference_Location

Macau

Print_ISBN

978-1-4244-2641-6

Electronic_ISBN

978-1-4244-2642-3

Type

conf

DOI

10.1109/APMC.2008.4957866

Filename

4957866