@inproceedings{227a0a3d4b894b06b903cd478300fcd6,
title = "High frequency-selectivity impedance transformer",
abstract = "This paper presents the design of an impedance transformer (IT) with high selectivity and wide out-of-band suppression characteristics. The proposed IT provides two transmission poles in the passband and a sharp frequency selective characteristic. For validation, a 50-to-20 IT has been implemented at a center frequency (f0) of 2.6 GHz. The measurement results show a return loss higher than 20 dB over the passband of 2.2-3 GHz and the insertion loss less than 0.4 dB over the same passband. The out-of-band suppression higher than 17 dB from DC to 1.85 GHz and higher that 11 dB from 3.5 GHz to 7.2 GHz are obtained.",
keywords = "Coupled line, high selectivity, impedance transformer, out-of-band",
author = "Phirun Kim and Girdhari Chaudhary and Junsik Park and Yongchae Jeong and Jongsik Lim",
note = "Publisher Copyright: {\textcopyright} 2015 IEEE.; 2015 IEEE Radio and Wireless Symposium, RWS 2015 - RWW 2015 ; Conference date: 25-01-2015 Through 28-01-2015",
year = "2015",
month = jun,
day = "19",
doi = "10.1109/RWS.2015.7129748",
language = "English",
series = "IEEE Radio and Wireless Symposium, RWS",
publisher = "IEEE Computer Society",
number = "June",
pages = "135--137",
booktitle = "RWS 2015 - Proceedings",
edition = "June",
}