A novel uniplanar 44 GHz MMIC subharmonic mixer using CPW series stubs

Author

Hettak, K. ; Verver, C.J. ; Morin, G.A. ; Stubbs, M.G.

Author_Institution

Commun. Res. Centre, Ottawa, Ont., Canada

Volume

2

fYear

2004

fDate

6-11 June 2004

Firstpage

1157

Abstract

The design of a subharmonically pumped (SHP), monolithic microwave integrated circuit (MMIC) mixer for Satcom applications is described. The mixer uses an anti-parallel diode pair to achieve frequency translation by mixing the IF signal with the second harmonic of the fundamental local oscillator (LO) pump. The circuit was fabricated using OMMIC´s ED02AH foundry process and contains two pairs of 0.18 μm PHEMT based diodes, each, having two 15-μm cathode fingers. The measured conversion loss is 8 dB for an RF output signal of 44.51 GHz and the RF port return loss is better than 13 dB over the RF frequency range (43.5 to 45.5 GHz). The 2*f_LO suppression is better than 17 dB over the RF range of 43.5 to 45.5 GHz.

Keywords

MMIC mixers; MMIC oscillators; band-stop filters; coplanar waveguides; frequency response; integrated circuit design; power HEMT; satellite communication; 0.18 micron; 15 micron; 43.5 to 45.5 GHz; 8 dB; CPW series stubs; IF signal; PHEMT; RF output signal; Satcom applications; antiparallel diode pair; cathode fingers; conversion loss; coplanar waveguide; frequency translation; local oscillator; monolithic microwave integrated circuit mixer; subharmonically pumped; uniplanar MMIC subharmonic mixer; Application specific integrated circuits; Coplanar waveguides; Diodes; Foundries; Local oscillators; MMICs; Microwave integrated circuits; Monolithic integrated circuits; PHEMTs; Radio frequency;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest, 2004 IEEE MTT-S International

ISSN

0149-645X

Print_ISBN

0-7803-8331-1

Type

conf

DOI

10.1109/MWSYM.2004.1339191

Filename

1339191