A balanced mixer based on dual-band composite right/left-handed transmission line

Author

Jae-Woon Ko ; Youn-Woo Jung ; Young Kim ; Young-Chul Yoon

Author_Institution

Dept. of Radio Commun. Eng., Kumoh Nat. Inst. of Technol., Gumi, South Korea

fYear

2011

fDate

Nov. 29 2011-Dec. 1 2011

Firstpage

1

Lastpage

4

Abstract

This paper proposes a balanced mixer based on dual-band composite right/left-handed (CRLH) transmission line. This metamaterial structure provides low LO leakage and high RF to LO isolation without additional filters for LO and RF path. The balanced mixer consists of a balun and Wilkinson divider with dual-band characteristic of unit-cell which behaves like a CRLH metamaterial. Experimental results are used to verify the proposed metamaterial functions. The balanced mixer design results in an operating frequency of 870 MHz and 1660 MHz with an optimum mixer conversion loss of 15.2 dB at 870 MHz and 21.2 dB at 1660 MHz.

Keywords

UHF mixers; baluns; metamaterials; CRLH metamaterial; LO leakage; RF-LO isolation; Wilkinson divider; balanced mixer design; balun; dual-band CRLH transmission line; dual-band composite right-left-handed transmission line; frequency 1660 MHz; frequency 870 MHz; loss 15.2 dB; loss 21.2 dB; metamaterial structure; Dual band; Impedance matching; Loss measurement; Metamaterials; Mixers; Power transmission lines; Radio frequency; Balanced mixer; CRLH transmission line; dualband; metamaterial;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering and Industries (ICEI), 2011 International Conference on

Conference_Location

Jeju

Print_ISBN

978-1-4577-1999-8

Type

conf

Filename

6218544