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Band‐notched UWB microstrip slot antenna with ENHANCED bandwidth by using a pair of C‐Shaped slots
Author(s) -
Ojaroudi N.,
Ojaroudi M.,
Ebarhimian H.
Publication year - 2012
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.26584
Subject(s) - stub (electronics) , ground plane , microstrip antenna , slot antenna , bandwidth (computing) , wideband , microwave , microstrip , j pole antenna , acoustics , patch antenna , optics , physics , electrical engineering , coaxial antenna , engineering , telecommunications , antenna (radio)
In this article, a new frequency notched ultra‐wideband microstrip slot antenna with an S‐shaped slot in the radiating stub and a pair of C‐shaped slots in the ground structure is proposed and experimentally studied. To increase the bandwidth, a pair of C‐shaped slots was cut in the ground plane that improves the bandwidth especially at the higher frequency and provides a wide usable fractional bandwidth from 2.9 to 14.4 (135%). To generate single band‐notch characteristics, we use the S‐shaped slot in the square radiating stub that with this design, a frequency notched band of 5.07–5.93 GHz has been achieved. The proposed antenna displays a good omni‐directional radiation pattern even at higher frequencies. The measured results reveal that the presented single band‐notch slot antenna offers a very wide bandwidth with notched band. The designed antenna has a small size of 20 × 20 mm 2 . © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:515–518, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26584
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