Hostname: page-component-cd9895bd7-mkpzs Total loading time: 0 Render date: 2024-12-24T14:08:09.409Z Has data issue: false hasContentIssue false
  • English
  • Français

A simple method to simultaneously increase the gain and bandwidth of wearable antennas for application in medical/communications systems

Published online by Cambridge University Press:  13 August 2020

Farzad Khajeh-Khalili Open the ORCID record for Farzad Khajeh-Khalili [Opens in a new window] ,
Ali Shahriari  and
Fatemeh Haghshenas
Farzad Khajeh-Khalili*
Affiliation:
Electrical Department, Kian Institute of Higher Education, Shahin Shahr, Isfahan, Iran
Ali Shahriari
Affiliation:
Electrical Department, Kian Institute of Higher Education, Shahin Shahr, Isfahan, Iran
Fatemeh Haghshenas
Affiliation:
Electrical Department, Kian Institute of Higher Education, Shahin Shahr, Isfahan, Iran
*
Author for correspondence: Farzad Khajeh-Khalili, E-mail: [email protected]
Get access Rights & Permissions [Opens in a new window]

Abstract

In this paper, a simple and efficient method to increase the gain and bandwidth of the wearable antennas used in several medical/communications systems is presented. To increase the gain and bandwidth simultaneously, the triple transmission lines (TTLs) method has been used. With this method, the frequency ranges of 1.7–2.5 and 5.4–5.95 GHz are covered with dual-band responses. Also, the simulated maximum gain at 2 and 5.8 GHz is equal to 8.26 and 9.86 dB, respectively. Using the TTLs method, the second frequency band (5.4–5.95 GHz) is achieved. Also, the gain improvement in operating frequencies is more than 4 dB compared to the conventional antenna. The dimensions of the proposed wearable high-gain antenna are 80 × 92 × 2 mm3 or 0.57 × 0.67 × 0.01 λg3 at 2 GHz. Finally, a dual-band sample antenna for use in medical systems was fabricated with a flexible felt substrate and its characteristics were measured. There is a good fit between the measurement and simulation results.

Keywords

Antennafelthigh-gainTTLswearable
Type
Antenna Design, Modeling and Measurements
Information
International Journal of Microwave and Wireless Technologies , Volume 13 , Issue 4 , May 2021 , pp. 374 - 380
Check for updates
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2020

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Khajeh-Khalili, F, Honarvar, MA, Dadgarpour, A, Virdee, BS and Denidni, TA (2019) Compact tri-band Wilkinson power divider based on metamaterial structure for Bluetooth, WiMAX, and WLAN applications. Journal of Electromagnetic Waves and Applications 33, 707–721.CrossRefGoogle Scholar
Kishk, A (2014) Advancement in Microstrip Antennas with Recent Applications. Rijeka, Croatia: InTech.Google Scholar
Ashyap, AYI, Dahlan, SHB, Abidin, ZZ, Dahri, MH, Majid, HA, Kamarudin, MR, Yee, SK, Jamaluddin, MH, Alomainy, A and Abbasi, QH (2020) Robust and efficient integrated antenna with EBG-DGS enabled wide bandwidth for wearable medical device applications. IEEE Access 8, 56346–56358.CrossRefGoogle Scholar
Chopra, R and Kumar, G (2020) Broadband and high gain multilayer multiresonator elliptical microstrip antenna. IET Microwaves, Antennas & Propagation 14, 821–829.CrossRefGoogle Scholar
Hussain, N, Tran, HH and Le, TT (2020) Single-layer wideband high-gain circularly polarized patch antenna with parasitic elements. AEU-International Journal of Electronics and Communications 113, 1–23.CrossRefGoogle Scholar
Nguyen, NL and Vu, VY (2019) Gain enhancement for MIMO antenna using metamaterial structure. International Journal of Microwave and Wireless Technologies 11, 851–862.Google Scholar
Khajeh-Khalili, F, Honarvar, MA and Dadgarpour, A (2018) High-gain bow-tie antenna using array of two-sided planar metamaterial loading for H-band applications. International Journal of RF and Microwave Computer-Aided Engineering 28, 1–7.CrossRefGoogle Scholar
Khajeh-Khalili, F, Honarvar, MA, Naser-Moghadasi, M and Dolatshahi, M (2020) Gain enhancement and mutual coupling reduction of multiple-input multiple-output antenna for millimeter-wave applications using two types of novel metamaterial structures. International Journal of RF and Microwave Computer-Aided Engineering 30, 1–9.CrossRefGoogle Scholar
Moradi, B, Fernández-García, R and Gil, I (2020) Wearable high-performance meander ring dipole antenna for electronic-textile applications. The Journal of the Textile Institute 111, 178–182.CrossRefGoogle Scholar
Karimiyan-Mohammadabadi, M, Dorostkar, MA, Shokuohi, F, Shanbeh, M and Torkan, A (2017) Ultra-wideband textile antenna with circular polarization for GPS applications and wireless body area networks. Journal of Industrial Textiles 46, 1–14.CrossRefGoogle Scholar
El Gharbi, M, Martinez-Estrada, M, Fernández-García, R, Ahyoud, S and Gil, I (2020) A novel ultra-wide band wearable antenna under different bending conditions for electronic-textile applications. The Journal of the Textile Institute, Latest Articles, 1–7. doi: 10.1080/00405000.2020.1762326.Google Scholar
Mustafa, AB and Rajendran, T (2020) Wearable multilayer patch antenna with electromagnetic band gap structure for public safety systems. IETE Journal of Research, Latest Articles, 1–10. doi: 10.1080/03772063.2020.1739572.Google Scholar
El Atrash, M, Abdalgalil, OF, Mahmoud, IS, Abdalla, MA and Zahran, SR (2020) Wearable high gain low SAR antenna loaded with backed all-textile EBG for WBAN applications. IET Microwaves, Antennas & Propagation 14, 791–799.CrossRefGoogle Scholar
AlSabbagh, HM, Elwi, TA, Al-Naiemy, Y and Al-Rizzo, HM (2020) A compact triple-band metamaterial-inspired antenna for wearable applications. Microwave and Optical Technology Letters 62, 763–777.CrossRefGoogle Scholar
Poornimaa, S, Duttab, K, Gajerac, H, Chandrashekard, KS and Chandrammad, S (2020) Flexible and miniaturized design of microstrip patch antenna with improved cross-polarized radiation. AEU-International Journal of Electronics and Communications 116, 1–21.CrossRefGoogle Scholar
Al-Sehemi, A, Al-Ghamdi, A, Dishovsky, N, Atanasova, G and Atanasov, N (2020) A flexible broadband antenna for IoT applications. International Journal of Microwave and Wireless Technologies 12, 531–540.CrossRefGoogle Scholar
Monti, G, Corchia, L, Paiano, E, Pascali, GD, Tarricone, K, Tomassoni, C and Sorrentino, R (2019) Textile wearable antenna for firefighters positioning. URSI Asia-Pacific Radio Science Conference (URSI AP-RASC), New Delhi, India, 1–4.Google Scholar
Corchia, L, Monti, G, Benedetto, ED, Cataldo, A, Angrisani, L, Arpaia, P and Tarricone, L (2020) Fully-textile, wearable chipless tags for identification and tracking applications. Sensors 20, 1–15.CrossRefGoogle ScholarPubMed
Khajeh-Khalili, F, Khoubneshan, O and Khanjari, M (2020) Design, simulation, and fabrication of a wearable dual-band filter with felt substrate for application in medical systems. Journal of Intelligent Procedures in Electrical Technology 10, 55–60.Google Scholar
Khajeh-Khalili, F and Honarvar, MA (2016) A design of triple lines Wilkinson power divider for application in wireless communication systems. Journal of Electromagnetic Waves and Applications 30, 2110–2124.CrossRefGoogle Scholar