A Low Profile, Dual-band, Dual Polarized Antenna for Indoor/Outdoor Wearable Application

Kashif Nisar Paracha, Sharul Kamal Abdul Rahim, Ping Jack Soh, Muhammad Ramlee Kamarudin, Kim Geok Tan, Yew Chiong Lo, Mohammad Tariqul Islam

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

A planar, low-profile, dual-band and dual-polarized antenna on a semi-flex substrate is proposed in this paper. The antenna is fabricated on Rogers substrate with a thickness of 3.04 mm and sized at 70.4 × 76.14 × 3.11 mm 3 ( 0.37λ0 × 0.40λ 0× 0.016 λ 0 ) only. The circular polarization property is enabled in the global navigation satellite system (GNSS) L1/E1 (lower) band by introducing a complementary split ring resonator on the antenna patch. Meanwhile, the antenna operates in the second (upper) 2.45 GHz WLAN band is enabled by etching a U-shaped slot on its ground plane. This simultaneous, dual-band and dual-polarized operation enables the proposed antenna to be applied in the indoor/outdoor wearable application. To isolate the antenna against the influence of the human body, a multiband artificial magnetic conductor (AMC) plane is added on the reverse side of the dual-band radiator. Comparison of the antenna without AMC in free space and when evaluated on the chest of a human body backed by AMC showed improved gain; from 3-5.1 dBi in the lower band, and from 1.53-5.03 dBi in the upper band. Besides that, the front-to-back ratio of the AMC backed monopole antenna also improved from 11-21.88 dB and from 2.5-24.5 dB in the GNSS and WLAN bands, respectively. Next, the specific absorption rate (SAR) of the monopole antenna with and without the AMC plane is assessed. Evaluation results indicate that the maximum SAR value decreased by up to 89.45% in comparison with the antenna without AMC in the lower band. This indicates the effectiveness of the AMC array in increasing gain and FBR, besides reducing EM absorption in the human body.

Original languageEnglish
Article number8632896
Pages (from-to)33277-33288
Number of pages12
JournalIEEE Access
Volume7
DOIs
Publication statusPublished - 1 Jan 2019

Fingerprint

Antennas
Monopole antennas
Wireless local area networks (WLAN)
Navigation
Satellites
Circular polarization
Radiators
Substrates
Microstrip antennas
Resonators
Etching

Keywords

  • artificial magnetic conductor (AMC) plane
  • circularly polarized antennas
  • dual-band antennas
  • dual-polarized antennas
  • Wearable antennas

ASJC Scopus subject areas

  • Computer Science(all)
  • Materials Science(all)
  • Engineering(all)

Cite this

Paracha, K. N., Rahim, S. K. A., Soh, P. J., Kamarudin, M. R., Tan, K. G., Lo, Y. C., & Islam, M. T. (2019). A Low Profile, Dual-band, Dual Polarized Antenna for Indoor/Outdoor Wearable Application. IEEE Access, 7, 33277-33288. [8632896]. https://doi.org/10.1109/ACCESS.2019.2894330

A Low Profile, Dual-band, Dual Polarized Antenna for Indoor/Outdoor Wearable Application. / Paracha, Kashif Nisar; Rahim, Sharul Kamal Abdul; Soh, Ping Jack; Kamarudin, Muhammad Ramlee; Tan, Kim Geok; Lo, Yew Chiong; Islam, Mohammad Tariqul.

In: IEEE Access, Vol. 7, 8632896, 01.01.2019, p. 33277-33288.

Research output: Contribution to journalArticle

Paracha, KN, Rahim, SKA, Soh, PJ, Kamarudin, MR, Tan, KG, Lo, YC & Islam, MT 2019, 'A Low Profile, Dual-band, Dual Polarized Antenna for Indoor/Outdoor Wearable Application', IEEE Access, vol. 7, 8632896, pp. 33277-33288. https://doi.org/10.1109/ACCESS.2019.2894330
Paracha KN, Rahim SKA, Soh PJ, Kamarudin MR, Tan KG, Lo YC et al. A Low Profile, Dual-band, Dual Polarized Antenna for Indoor/Outdoor Wearable Application. IEEE Access. 2019 Jan 1;7:33277-33288. 8632896. https://doi.org/10.1109/ACCESS.2019.2894330
Paracha, Kashif Nisar ; Rahim, Sharul Kamal Abdul ; Soh, Ping Jack ; Kamarudin, Muhammad Ramlee ; Tan, Kim Geok ; Lo, Yew Chiong ; Islam, Mohammad Tariqul. / A Low Profile, Dual-band, Dual Polarized Antenna for Indoor/Outdoor Wearable Application. In: IEEE Access. 2019 ; Vol. 7. pp. 33277-33288.
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