# Miniaturized Arrow-Shaped Flexible Filter-Embedded Antenna for Industrial and Medical Applications
## 5 Conclusions  
This article focuses on the design and analysis of a compact-size antenna integrated with a filter to suppress the higher-order harmonics. The proposed antenna works for the 2.45 GHz industry-science-medical (ISM) band, one of the globally used band spectrums. Initially, miniaturization in the antenna size is achieved using 3 consecutive steps that result in 34% miniaturized size as compared to conventional antennas. Afterwards, a filtering stub is utilized to suppress the higher-order undesired harmonics that may result in unwanted interference. Finally, the antenna is optimized to achieve the resonance at the desired band of 2.45 GHz, as the miniaturization along with filtering structure results in shifting of the central frequency. The antenna prototype is fabricated, and experimental results for both conformal and rigid cases are obtained and later compared with the simulated results. The antenna offers a broadband ranging from 2.276 to 2.75 GHz that covers the globally allocated ISM band of 2.4-2.5 GHz. Moreover, the antenna gain value of \(>\)2.5 dBi having an omni-directional radiation pattern along with a radiation efficiency of \(>\)95% is achieved for the proposed filtenna. The antenna over-performs the literary works due to high performance parameters along with an overall compact size of 0.24\(\lambda\)\(\times\) 0.20\(\lambda\)\(\times\) 0.0005\(\lambda\) and stable filtering properties in both rigid as well as conformal cases, making it a strong candidate for modern-day applications. Conceptualization, W.A.A. ; methodology, software, M.H. and W.A.A. ; validation, formal analysis, investigation, S.I.N. and A.A.; resources, data curation, W.A.A. and S.I.N. ; writing--original draft preparation, M.H. and A.A.; writing--review and editing, W.A.A. and S.I.N. ; funding acquisition, supervision, W.A.A. ; project administration, S.I.N. All authors have read and agreed to the published version of the manuscript. This research received no external funding. Not applicable. * _[PERSON] et al. (2021)_ [PERSON]; [PERSON]; [PERSON]; [PERSON]; [PERSON] A compact dual-band flexible antenna for applications at 900 and 2450 MHz. _Prog. Electromagn. Res. Lett._**2021**, _99_, 83-91. [CrossRef]
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