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Reconfigurable ultra‐wideband monopole antenna with single‐, dual‐, and triple‐band notched functions
Author(s) -
Han Liping,
Cheng Gen,
Han Guorui,
Zhang Wenmei
Publication year - 2019
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.21837
Subject(s) - pin diode , ground plane , monopole antenna , antenna (radio) , multi band device , ultra wideband , reconfigurable antenna , diode , patch antenna , radiation pattern , physics , materials science , optoelectronics , electrical engineering , antenna efficiency , engineering
A miniaturized ultra‐wideband (UWB) monopole antenna with reconfigurable multiple‐band notched performance is demonstrated. By modifying the shape of the patch and the ground plane, the UWB operation is achieved. The first and second band‐notches are respectively generated by etching a rectangular slot with open ends and a U‐shaped slot in the patch, and the third band‐notch is produced by loading a C‐shaped parasitic element beneath the patch. To realize the reconfigurable band‐notched functions, four PIN diodes are inserted in three band‐rejected structures. The antenna has a compact dimension of 30 mm × 26 mm. It can switch between a UWB state and several band‐notch states by alternating the states of the diodes. Also, good radiation patterns are obtained.