TY - GEN
T1 - Bandwidth-enhanced quadrature power splitter and balun using metamaterial transmission lines
AU - Chang, Chih Lin
AU - Tseng, Chao Hsiung
PY - 2007
Y1 - 2007
N2 - In this paper, the bandwidth-enhanced quadrature power splitter (QPS) and balun using metamaterial (MM) transmission lines (TLs) are presented. They consist of a Wilkinson power divider, a conventional TL, and a wellsynthesized MM TL. Since the phase response of the MM TL can be arbitrarily synthesized, the slope of the phase-response curve of the MM TL can be achieved as the same as that of the conventional TL with a specified phase difference, such as 90° or 180°, over a wide frequency range. Two components are designed and implemented at 2 GHz and experimentally demonstrated. The QPS has an output amplitude imbalance of less than 0.9 dB and a phase error of less than ±5° from 1.1-3.5 GHz (104% relative bandwidth), while over the frequency range of 1.24-3.58 GHz (97% relative bandwidth), the balun has an output amplitude imbalance of less than 0.7 dB and a phase error of less than± 10°.
AB - In this paper, the bandwidth-enhanced quadrature power splitter (QPS) and balun using metamaterial (MM) transmission lines (TLs) are presented. They consist of a Wilkinson power divider, a conventional TL, and a wellsynthesized MM TL. Since the phase response of the MM TL can be arbitrarily synthesized, the slope of the phase-response curve of the MM TL can be achieved as the same as that of the conventional TL with a specified phase difference, such as 90° or 180°, over a wide frequency range. Two components are designed and implemented at 2 GHz and experimentally demonstrated. The QPS has an output amplitude imbalance of less than 0.9 dB and a phase error of less than ±5° from 1.1-3.5 GHz (104% relative bandwidth), while over the frequency range of 1.24-3.58 GHz (97% relative bandwidth), the balun has an output amplitude imbalance of less than 0.7 dB and a phase error of less than± 10°.
KW - Balun
KW - Left-handed (LH) transmission line
KW - Metamateial
KW - Microwave passive component
KW - Quadrature power splitter
UR - http://www.scopus.com/inward/record.url?scp=51849131110&partnerID=8YFLogxK
U2 - 10.1109/APMC.2007.4554699
DO - 10.1109/APMC.2007.4554699
M3 - Conference contribution
AN - SCOPUS:51849131110
SN - 1424407494
SN - 9781424407491
T3 - Asia-Pacific Microwave Conference Proceedings, APMC
BT - 2007 Asia-Pacific Microwave Conference, APMC
T2 - Asia-Pacific Microwave Conference, APMC 2007
Y2 - 11 December 2007 through 14 December 2007
ER -