Title :
Ultrawide-band transitions and new microwave components using double-sided parallel-strip lines
Author :
Kim, Sang-Gyu ; Chang, Kai
Author_Institution :
Dept. of Electr. Eng., Texas A&M Univ., College Station, TX, USA
Abstract :
Double-sided parallel-strip lines have been used as a balanced transmission line to feed double-sided printed antennas or to fabricate microwave components such as balanced mixers. In this paper, ultrawide-band transitions from microstrip line to double-sided parallel-strip line are developed with 1-30-GHz bandwidth. New microwave components using double-sided parallel-strip lines are designed with good measured results. The double-sided parallel-strip line has an advantage of easy realization of low-impedance lines, which are important for many component designs.
Keywords :
antenna feeds; baluns; broadband antennas; high-frequency transmission lines; microstrip antennas; microstrip transitions; microwave antennas; microwave filters; microwave mixers; 1 to 30 GHz; balanced mixers; balanced transmission line; double-sided parallel-strip lines; feed double-sided printed antennas; low-impedance lines; microstrip line; new microwave components; ultrawide-band transitions; Antenna accessories; Antenna feeds; Antenna measurements; Impedance; Microstrip; Microwave antennas; Microwave circuits; Power transmission lines; Strips; Wideband; Baluns; microwave filters; parallel strips; rat-race hybrids; transitions;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
DOI :
10.1109/TMTT.2004.834165
