Title :
A compact crossover using NRI-TL metamaterial lines
Author :
Antoniades, Marco A. ; Henin, Bassem ; Abbosh, Amin
Author_Institution :
Sch. of Inf. Technol. & Electr. Eng., Univ. of Queensland, Brisbane, QLD, Australia
Abstract :
A compact NRI-TL metamaterial branch-line crossover is presented that has an area of λ/36 × λ/12, and is a factor of 81 times smaller than its analogous transmission-line counterpart. Circuit simulations reveal that it exhibits a 34% -10 dB |S11| bandwidth, good isolation below -10 dB over a 22% bandwidth, and less than 0.5 dB insertion loss over a 15% bandwidth. Furthermore, the bandwidth of the device can be increased by incorporating additional branch-line sections into the structure.
Keywords :
metamaterials; refractive index; analogous transmission-line counterpart; circuit simulations; compact NRI-TL metamaterial branch-line crossover; compact crossover; insertion loss; negative-refractive index transmission line; Bandwidth; Couplers; Insertion loss; Metamaterials; Microstrip; Microwave circuits; Microwave integrated circuits;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2012 IEEE
Conference_Location :
Chicago, IL
Print_ISBN :
978-1-4673-0461-0
DOI :
10.1109/APS.2012.6349301
