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The Port-to-Port Isolation of the Downconversion P-Type Micromixer Using Different N-Well Topologies
Sheng-Che TSENG Chinchun MENG Yang-Han LI Guo-Wei HUANG
Publication
IEICE TRANSACTIONS on Electronics
Vol.E89-C
No.4
pp.482-487 Publication Date: 2006/04/01 Online ISSN: 1745-1353
DOI: 10.1093/ietele/e89-c.4.482 Print ISSN: 0916-8516 Type of Manuscript: Special Section PAPER (Special Section on Advanced RF Technologies for Compact Wireless Equipment and Mobile Phones) Category: Keyword: micromixer, port-to-port isolation, body effect, well isolation,
Full Text: PDF(823.5KB)>>
Summary:
The port-to-port isolation of the micromixer is studied using three different p-type downconversion micromixers in 0.35-µm CMOS technology. Both the body effect and the well isolation influence the port-to-port isolation significantly. The body effect degrades the LO-to-IF isolation and also deteriorates the LO-to-RF isolation. Without the well isolation, the LO-to-RF isolation drops. However, the RF-to-IF isolation is independent of the body effect and well isolation. The p-type micromixer with a separate N-well and without body effect has the best port-to-port isolation properties; its LO-to-IF, LO-to-RF, and RF-to-IF isolations are -59 dB, -58 dB, and -30 dB, respectively.
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