A fully integrated 24 GHz sub-harmonic image rejection mixer with quadrature coupler

Author

Ke, Po-Yu ; Kuo, Che-Yu ; Huang, Wei-Hsun ; Wei, Chine-Cheng ; Chen, Ming-Yang ; Chiu, Hsien-Chin ; Fu, Jeffrey S. ; Chiang, Yi-Chyun

Author_Institution

Dept. of Electron. Eng., Chang Gung Univ., Gueishan

fYear

2008

fDate

16-20 Dec. 2008

Firstpage

1

Lastpage

4

Abstract

In this paper, we demonstrated a 24-GHz SHIRM in a 0.15-mum GaAs pHEMT process. Since the proposed circuit with a symmetric layout provides good matches on amplitude and phase performances, the cancellation of the image signal can be accomplished easily. Therefore, the SHIRM has a greatest conversion loss of 13 dB and IRR of 19 dB under LO input power of 14.4 dBm, with all isolations better than 10 dB. According to the experimental results, this SHIRM with two quadrature couplers achieves good potentials in conversion loss, IRR, and compact size in the 24-GHz ISM band.

Keywords

III-V semiconductors; high electron mobility transistors; image processing; GaAs; GaAs pHEMT process; amplitude performance; frequency 24 GHz; fully integrated 24 GHz subharmonic image rejection mixer; image signal cancellation; phase performance; quadrature coupler; symmetric layout; Coupling circuits; Diodes; Frequency conversion; Image converters; Loss measurement; Millimeter wave communication; Mixers; Power measurement; RF signals; Radio frequency;

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.2008.4957873

Filename

4957873