A broadband balun using metamaterial phase-shifting lines

Antoniades, Marco A. and Eleftheriades, George V. (2005). A broadband balun using metamaterial phase-shifting lines. In: IEEE Antennas and Propagation Society International Symposium 2005, Washington, DC, United States, (332-335). 3-8 July 2005.


Author Antoniades, Marco A.
Eleftheriades, George V.
Title of paper A broadband balun using metamaterial phase-shifting lines
Conference name IEEE Antennas and Propagation Society International Symposium 2005
Conference location Washington, DC, United States
Conference dates 3-8 July 2005
Place of Publication Piscataway, NJ, United States
Publisher IEEE
Publication Year 2005
Sub-type Fully published paper
DOI 10.1109/APS.2005.1552009
ISBN 0780388836
Volume 4B
Start page 332
End page 335
Total pages 4
Language eng
Abstract/Summary A 3-port device that converts a single-ended input to a differential output over a large bandwidth is presented. The balun comprises a Wilkinson divider, followed by a +90° negative-refractive-index (NRI) metamaterial (MM) phase-shifting line along the top branch and a -90° NRI-MM phase-shifting line along the bottom branch. By independently adjusting the parameters of the two MM lines, the slopes of their phase responses can be matched and therefore a broadband differential output signal is achieved. In addition, the MM balun is compact, occupying only a fraction of the area that a conventional TL balun would occupy.
Q-Index Code E1
Q-Index Status Provisional Code
Institutional Status Non-UQ
Additional Notes Conference theme: Celebrating the Antennas and Propagation Profession. Held in conjunction with the 2005 USNC / URSI National Radio Science Meeting.

 
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