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Design of wideband slot‐coupled microstrip vertical transition
Author(s) -
Tao Ziwen,
Sun Junfeng,
Huang Min,
Yu Yuanwei
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.22118
Subject(s) - microstrip , wideband , ground plane , resonator , materials science , broadband , return loss , passband , optoelectronics , acoustics , optics , telecommunications , physics , engineering , band pass filter , antenna (radio)
A wideband slot‐coupled microstrip‐to‐microstrip vertical transition is presented in this paper. The transition consists of upper/lower microstrip patch, a metallized via, a wide slot, and a CPW patch on the ground plane. The CPW patch is connected to the upper microstrip patch through the metallized via. The upper microstrip patch, the CPW patch, and the metallized via together constitute a hybrid resonator. By introducing the fundamental resonance of the hybrid resonator into the passband, a broadband microstrip vertical transition can be realized. A sample transition has been designed and measured. Experimental results indicate that a broad frequency range of 2.3 to 8.4 GHz with return loss better than 10 dB can be obtained.