Title :
Microstrip phase inverter using interdigital strip lines and defected ground
Author :
Xu-chun, Zhang ; Chang-hong, Liang ; Jun-wei, Xie
Author_Institution :
Nat. Key Lab. of Antennas & Microwave Technol., Xidian Univ., Xi´´an, China
Abstract :
A new wide-band microstrip phase inverter is reported in this paper. The interdigital striplines, defected ground and vias are used to obtain 180° phase shift. The structure is simple and can be realized with ordinary microwave integrated circuit(MIC) fabrication process. The lumped-element model of the phase shifter is devised to facilitate parameter optimization. The fabricated phase inverter has a bandwidth of 105.6% (2.065-6.682 GHz), with 1 dB insertion loss and a phase deviation less than 10°.
Keywords :
microstrip circuits; microstrip lines; microwave phase shifters; vias; bandwidth 2.065 GHz to 6.682 GHz; defected ground; interdigital strip lines; interdigital striplines; loss 1 dB; lumped-element model; microwave integrated circuit fabrication; parameter optimization; phase deviation; phase shifter; wide-band microstrip phase inverter; Bandwidth; Insertion loss; Inverters; Microstrip; Microwave circuits; Microwave integrated circuits; Wide-band; defected ground; microstrip line; phase inverter;
Conference_Titel :
Microwave and Millimeter Wave Technology (ICMMT), 2012 International Conference on
Conference_Location :
Shenzhen
Print_ISBN :
978-1-4673-2184-6
DOI :
10.1109/ICMMT.2012.6229978
