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Differential phase shifters based on Schiffman type‐C and type‐F networks with wide phase shift range
Author(s) -
Qiu LeiLei,
Zhu Lei,
Lyu YunPeng
Publication year - 2020
Publication title -
international journal of rf and microwave computer‐aided engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.335
H-Index - 39
eISSN - 1099-047X
pISSN - 1096-4290
DOI - 10.1002/mmce.22126
Subject(s) - phase shift module , differential phase , phase (matter) , electrical impedance , bandwidth (computing) , electronic engineering , materials science , continuous phase modulation , computer science , optoelectronics , insertion loss , physics , telecommunications , electrical engineering , engineering , quantum mechanics
This study proposes a class of differential phase shifters based on the Schiffman type‐C and type‐F networks with wide phase shift range. After the phase and bandwidth properties of these two distinct networks are numerically analyzed, two unique advantages of wide phase shift range and wide phase shift bandwidth are revealed. Next, the optimal design parameters for different phase shift values up to 405° are presented to allow for a quick design process. To verify the proposed approach, a 180° differential phase shifter is designed, fabricated and measured. Good performance is achieved with an impedance ratio of 1.959 and 3.7° phase deviation over a phase shift bandwidth of 61%.