Lumped-element quadrature power splitters using mixed right/left-handed transmission lines
Journal article, 2005

This paper presents the design of lumped quadrature power splitters (LQPSs) based on unit cells of right-handed (RH) and left-handed (LH) synthetic transmission lines (TLs). The LQPSs include a lumped Wilkinson splitter, with phase-adjusting RH/LH TLs at the outputs. Two topologies, considered to be advantageous with regards to size and electric characteristics, are studied in detail. For these two, closed-form design equations are derived and the performances are analyzed by circuit simulations. The theory and simulation results are experimentally validated by monolithic-microwave integrated-circuit prototypes designed for a center frequency of 2.5 GHz. Both prototypes have performance that agree well with theory and design simulations. Within the frequency range of 2-3 GHz, the maximum amplitude and phase errors are less than 0.3 dB and 3 degrees , respectively. All reflections and the isolation are better than -10 dB. The effective areas of the two prototypes are 900*700 mu m/sup 2/ and 720*520 mu m/sup 2/, respectively

MMIC

radiofrequency integrated circuits

metamaterials

lumped parameter networks

transmission lines

Author

Dan Kuylenstierna

Chalmers, Microtechnology and Nanoscience (MC2), Microwave Electronics

Sten Gunnarsson

Chalmers, Microtechnology and Nanoscience (MC2), Microwave Electronics

Herbert Zirath

Chalmers, Microtechnology and Nanoscience (MC2), Microwave Electronics

IEEE Transactions on Microwave Theory and Techniques

0018-9480 (ISSN)

Vol. 53 8 2616-21

Subject Categories

Electrical Engineering, Electronic Engineering, Information Engineering

DOI

10.1109/TMTT.2005.852751

More information

Created

10/6/2017