Title :
Dual-band differential quadrature divider with asymmetric structure
Author :
Tae, H.S. ; Oh, K.S. ; Lee, M.Q. ; Yu, Jong
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Korea Adv. Inst. of Sci. & Technol. (KAIST), Daejeon, South Korea
Abstract :
Presented is a new dual-band differential quadrature divider with asymmetric structure operating at GPS L1 and L2 bands (1575 and 1227 MHz) for circularly polarised (CP) antennas and RF transceivers. The proposed structure is composed of one ring hybrid coupler and two Wilkinson dividers with three λ/4 short stubs. Each circuit is designed asymmetrically for dual-band characteristics.
Keywords :
Global Positioning System; UHF antennas; power dividers; radio transceivers; GPS; RF transceivers; Wilkinson power dividers; asymmetric structure; circularly polarised antennas; dual-band differential quadrature divider; frequency 1227 MHz; frequency 1575 MHz; ring hybrid coupler; short stubs;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2011.0728
