TY - GEN
T1 - Microwave 3-dB four-conductor quadrature coupler based on asymmetrical CPW coupled lines
AU - Chen, Yu Tzu
AU - Chang, Chih Lin
AU - Tseng, Chao Hsiung
PY - 2013
Y1 - 2013
N2 - In the paper, a 3-dB quadrature coupler is developed by interdigitated asymmetrical four-conductor CPWs, while its feeding structures are implemented by four microstrip lines. In order to accurately extract the c- and π-mode impedances of the four-conductor asymmetrical coupled lines, a simulator-aided design method is proposed in this paper to overcome the simulation limitation of the commercial electromagnetic simulator. The experimental results not only demonstrate the effectiveness of the developed design procedures, but also reveal that the developed coupler has properties of wideband and flat quadrature phase differences between output ports.
AB - In the paper, a 3-dB quadrature coupler is developed by interdigitated asymmetrical four-conductor CPWs, while its feeding structures are implemented by four microstrip lines. In order to accurately extract the c- and π-mode impedances of the four-conductor asymmetrical coupled lines, a simulator-aided design method is proposed in this paper to overcome the simulation limitation of the commercial electromagnetic simulator. The experimental results not only demonstrate the effectiveness of the developed design procedures, but also reveal that the developed coupler has properties of wideband and flat quadrature phase differences between output ports.
KW - coplanar waveguide (CPW)
KW - directional couplers
KW - microstrips
KW - Multi-conductor transmission lines
UR - https://www.scopus.com/pages/publications/84893500346
M3 - Conference contribution
AN - SCOPUS:84893500346
SN - 9782874870316
T3 - European Microwave Week 2013, EuMW 2013 - Conference Proceedings; EuMC 2013: 43rd European Microwave Conference
SP - 291
EP - 293
BT - European Microwave Week 2013, EuMW 2013 - Conference Proceedings; EuMC 2013
T2 - 2013 43rd European Microwave Conference, EuMC 2013 - Held as Part of the 16th European Microwave Week, EuMW 2013
Y2 - 7 October 2013 through 10 October 2013
ER -