Fully integrated unequal Wilkinson power divider with EBG CPW

Author

Young-Joon Ko ; Jae-Yeong Park ; Jong-Uk Bu

Author_Institution

Micro-Syst. Group, LG Electron. Inst. of Technol., Seoul, South Korea

Volume

13

Issue

7

fYear

2003

fDate

7/1/2003 12:00:00 AM

Firstpage

276

Lastpage

278

Abstract

A CPW with electromagnetic bandgap (EBG CPW) is newly proposed for designing a transmission line with high impedance. After designing, fabricating, and evaluating the characteristic impedance of the proposed EBG CPW transmission line, it will be applied to an integrated unequal Wilkinson power divider. In the EM simulation, the EBG-CPW transmission line with 10 μm in line width has the same characteristic impedance as a CPW with a line width of 2.5 μm. The insertion and return losses of the fabricated power divider with a power ratio of 1 to 3 are less than -0.7 dB and -15 dB, respectively. It also has excellent isolation characteristics with more than -20 dB. The experimental results are good agreement with the simulation.

Keywords

coplanar waveguides; electric impedance; high-frequency transmission lines; losses; periodic structures; power dividers; -0.7 dB; -15 dB; 10 micron; 2.5 micron; EBG CPW; characteristic impedance; electromagnetic bandgap; high impedance transmission line; insertion losses; isolation characteristics; return losses; unequal Wilkinson power divider; Coplanar waveguides; Etching; Fabrication; Impedance; Metamaterials; Periodic structures; Photonic band gap; Power dividers; Power transmission lines; Reflection;

fLanguage

English

Journal_Title

Microwave and Wireless Components Letters, IEEE

Publisher

ieee

ISSN

1531-1309

Type

jour

DOI

10.1109/LMWC.2003.814597

Filename

1214548