Title :
Planar transmission line transformer using coupled microstrip lines
Author_Institution :
Comput. & Commun. Res. Labs., Ind. Technol. Res. Inst., Hsinchu, Taiwan
Abstract :
A novel and simple configuration of the planar transmission line transformer using coupled microstrip lines is proposed. A design methodology is also presented. The simulated and measured results demonstrate broadband impedance transformation with good efficiency for RF and microwave circuit design. The effects of the deviation from the optimal characteristic impedance and transformation ratio are investigated as well.
Keywords :
S-parameters; UHF integrated circuits; electric impedance; impedance matching; microstrip circuits; microwave integrated circuits; transmission line theory; RF circuit design; broadband impedance transformation; coupled microstrip lines; design methodology; microwave circuit design; optimal characteristic impedance; optimal transformation ratio; planar transmission line transformer; Circuit simulation; Circuit synthesis; Coupling circuits; Design methodology; Impedance measurement; Microstrip; Microwave measurements; Planar transmission lines; Radio frequency; Transmission line measurements;
Conference_Titel :
Microwave Symposium Digest, 1998 IEEE MTT-S International
Conference_Location :
Baltimore, MD, USA
Print_ISBN :
0-7803-4471-5
DOI :
10.1109/MWSYM.1998.705108
