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Wideband Filtering Out-of-Phase Power Dividers Using Slotline Resonators and Microstrip-to-Slotline Transitions

He Zhu, Jing-Yu Lin, Y. Jay Guo
2019 2019 IEEE MTT-S International Microwave Symposium (IMS)  

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Two wideband filtering out-of-phase power dividers are designed and analyzed. The initial design is composed of a quarter-wavelength slotline resonator and two microstrip-toslotline transitions. Three transmission poles are produced to form the passband. Excellent matching and isolation are achieved using extra matching network. Based on the initial design, a pair of stepped-impedance open stubs are shunted at the output ports to improve the passband selectivity. The designs have been verified
more » ... hrough experiment. The tested results show that the proposed devices have achieved 60% operating bandwidth, 1.8 dB insertion loss, 1.2° phase error and excellent in-band matching and isolation.
doi:10.1109/mwsym.2019.8701056 fatcat:nrn72bnn5rbwld7hegpiykia4u
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He Zhu, Jing-Yu Lin, Y. Jay Guo. "Wideband Filtering Out-of-Phase Power Dividers Using Slotline Resonators and Microstrip-to-Slotline Transitions." 2019 IEEE MTT-S International Microwave Symposium (IMS) (2019)