A novel wideband balun with a CPW power divider
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This paper presents a wideband balun ranging from 1GHz to 2GHz, with a Wilkinson power divider and an inverted phase shifter on a coplanar waveguide (CPW) substrate. A novel structure is proposed with concentric circles. After a series elaborate designs and optimizations based on the software HFSS, The parameters S11, S22, S33 is nearly -20dB, isolation less than -20dB and phase flatness within ± 10° in the operation frequency range. The designs can also be applied to circuits with wideband and low-level requirements for phase. The S parameters are easily tested and the experimental results show that the characteristic is in accordance with simulation.
[1] Y. Kwon,et al. Millimetre-wave CPS distributed analogue MMIC phase shifter , 2003 .
[2] Hee‐Yong Hwang,et al. Ring-balun-bandpass filter with harmonic suppression , 2010 .
[3] Martin Salter,et al. Broadband calculable dipole reference antennas , 2002 .