TY - JOUR
T1 - Compact coplanar waveguide power splitter with filtering capability based on slow-wave structures
AU - Vélez, Paris
AU - Aznar-Ballesta, Francisco
AU - Coromina, Jan
AU - Bonache, Jordi
AU - Martín, Ferran
PY - 2019/5/1
Y1 - 2019/5/1
N2 - © 2019 Wiley Periodicals, Inc. A compact coplanar waveguide (CPW) power splitter with filtering capability is presented in this paper. The splitter consists of a pair of 70.71 Ω impedance inverters implemented by means of inductively and capacitively loaded slow-wave structures. Such slow-wave structures efficiently shorten the length of the inverters, thereby providing substantial size reduction to the power splitter. The filtering functionality is due to the Bragg effect, related to periodicity. The proposed splitter, designed to be functional at 1 GHz, exhibits good performance at that frequency, with measured return loss of 20.6 dB and insertion loss of 3.15 dB and 3.23 dB at the output ports. Moreover, the suppression level at the first, second and third harmonic frequency is better than 12.4 dB, 34.6 dB and 24.7 dB, respectively. As compared to the length of the ordinary inverters, the length of the constitutive slow-wave impedance is reduced by a factor of two.
AB - © 2019 Wiley Periodicals, Inc. A compact coplanar waveguide (CPW) power splitter with filtering capability is presented in this paper. The splitter consists of a pair of 70.71 Ω impedance inverters implemented by means of inductively and capacitively loaded slow-wave structures. Such slow-wave structures efficiently shorten the length of the inverters, thereby providing substantial size reduction to the power splitter. The filtering functionality is due to the Bragg effect, related to periodicity. The proposed splitter, designed to be functional at 1 GHz, exhibits good performance at that frequency, with measured return loss of 20.6 dB and insertion loss of 3.15 dB and 3.23 dB at the output ports. Moreover, the suppression level at the first, second and third harmonic frequency is better than 12.4 dB, 34.6 dB and 24.7 dB, respectively. As compared to the length of the ordinary inverters, the length of the constitutive slow-wave impedance is reduced by a factor of two.
KW - coplanar waveguides
KW - power splitter
KW - slow-wave structures
U2 - https://doi.org/10.1002/mop.31671
DO - https://doi.org/10.1002/mop.31671
M3 - Article
VL - 61
SP - 1143
EP - 1148
JO - Microwave and Optical Technology Letters
JF - Microwave and Optical Technology Letters
SN - 0895-2477
ER -