A New Lowpass-to-broadband Synthesis Method which Preserves DC Connection
A theory and design procedures for realizing a broadband(ωL to ωH)impedance transformation network utilizing a LC-ladder with no transmission zero at DC are proposed.For even-order networks,using the new ω2-shifting method on a typical low-pass Chebyshev filter transfer functions directly derives theirs broadband optimum.In the odd-order cases,numerical optimizations will be required,but the networks are capable of absorbing parasitic capacitance at both RF I/O ports.To experimentally verify the proposed methods,a 10th-order 0.9-4.5GHz 50-to-250Ω impedance transformation network and a three-port 0.45-4GHz Wilkinson power divider have been designed and fabricated using 1.6-mm two-layer FR4 laminates.
Tao-Yi Lee Li-Han Chang Yu-Jiu Wang
Institute of Electronics,National Chiao-Tung University,1001 Ta-Hsueh Road Hsinchu,30010,Taiwan
国际会议
Progress in Electromagnetics Research Symposium 2013(2013年电磁学研究新进展学术研讨会)
台北
英文
800-807
2013-03-01（万方平台首次上网日期，不代表论文的发表时间）