Design of a millimetre-wave mixer for broadband mobile communications

Author

Brabetz, T. ; Fusco, V.F.

Author_Institution

Dept. of Electr. & Electron. Eng., Queen´´s Univ., Belfast, UK

fYear

1999

fDate

1999

Firstpage

28

Lastpage

33

Abstract

The design process for a state-of-the-art millimetre-wave down converter from 65.5 GHz to 1.5 GHz is described in detail. The work starts with a short discussion of basic mixer theory and its implications on the performance for any mixer and then moves on to the problem of choosing the correct topology for a given task. Some of the specific problems encountered at millimetre-wave frequencies are discussed and the final chip layout is discussed. The design exhibits a simulated conversion loss of -0.7 dB at 0 dBm LO power and a measured minimum conversion loss of 2 dB at 8 dBm LO power. These results are compliant with current published state of the art

Keywords

HEMT integrated circuits; MMIC frequency convertors; MMIC mixers; field effect MIMIC; millimetre wave frequency convertors; millimetre wave mixers; mobile communication; -0.7 dB; 1.5 GHz; 2 dB; 65.5 GHz; LO power; basic mixer theory; broadband mobile communications; design; final chip layout; millimetre-wave down converter; millimetre-wave mixer; minimum conversion loss; pHEMTs; performance; simulated conversion loss; topology; Bandwidth; Broadband communication; Frequency; Mixers; Mobile communication; Process design; RF signals; Semiconductor device measurement; Signal processing; Topology;

fLanguage

English

Publisher

ieee

Conference_Titel

High Frequency Postgraduate Student Colloquium, 1999

Conference_Location

Leeds

Print_ISBN

0-7803-5577-6

Type

conf

DOI

10.1109/HFPSC.1999.809274

Filename

809274