A 20-31 GHz high image rejection ratio subharmonic mixer

Y. C. Lee, C. H. Liu, S. H. Hung, C. C. Su, Yeong-Her Wang

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

A broadband monolithic image rejection subharmonic mixer using a standard 0.18 μm CMOS technology is proposed. This circuit is composed of a band-pass filter with an intermediate frequency (IF) extraction function that can simplify the block diagram of the image rejection mixer. The entire passive circuit is constructed using a broadside coupling structure to achieve a high level of integration. Based on measured results, the proposed mixer exhibits conversion loss of 15.5-18.5 dB at a local oscillator (LO) power of 13 dBm, whereas the 3 dB bandwidth ranges from 20 to 31 GHz (43.1%) with a miniature chip dimension of 0.77 × 0.81 mm 2. The LO-to-radio frequency (RF), 2LO-to-RF, and RF-to-IF isolation levels are higher than 22.5, 42.9, and 34.5 dB, respectively. The best image rejection ratio of 29 dBc with 20° phase compensation at 24.5 GHz can be achieved.

Original languageEnglish
Pages (from-to)197-207
Number of pages11
JournalProgress In Electromagnetics Research C
Volume27
DOIs
Publication statusPublished - 2012 Mar 5

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Passive networks
Mixer circuits
Bandpass filters
Bandwidth
Networks (circuits)
Compensation and Redress

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials

Cite this

Lee, Y. C. ; Liu, C. H. ; Hung, S. H. ; Su, C. C. ; Wang, Yeong-Her. / A 20-31 GHz high image rejection ratio subharmonic mixer. In: Progress In Electromagnetics Research C. 2012 ; Vol. 27. pp. 197-207.
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A 20-31 GHz high image rejection ratio subharmonic mixer. / Lee, Y. C.; Liu, C. H.; Hung, S. H.; Su, C. C.; Wang, Yeong-Her.

In: Progress In Electromagnetics Research C, Vol. 27, 05.03.2012, p. 197-207.

Research output: Contribution to journalArticle

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AU - Lee, Y. C.

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