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Investigations on Patch Antennas Based on Complementary Split Rings for On-Body Applications

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In this paper, the effect of integrating complementary split rings into a patch antenna working on the human body is investigated. Different shapes of complementary split rings are integrated into a typical rectangular microstrip patch antenna of (38×46.6×1.6) mm3 in size. The performance of the antenna on a simplified skin model at 2.45 GHz with and without the rings is compared. The simulation results indicate that the antenna radiation efficiency and gain are decreased by up to around 10.14 dB and 9.75 dBi, respectively for the antenna investigated in this paper when the investigated complementary split rings are integrated into its patch. The results in the paper show that unlike the case of complementary split rings with antennas in the human body, the antenna radiation efficiency and gain are decreased when these rings are used with antennas on the human body. The results in this paper are important to distinguish between the performance of complementary split rings with on-body antennas and that of the rings with in-body antennas. They are also important to provide designers with guidelines about using  complementary split rings for on body or wearable antennas in general.
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Complementary Split Ring (CSR); ISM Band; Patch Antennas; On-Body Antennas; Wireless Body Area Network (WBAN)

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S. Majumder, T. Mondal, and M. Deen, Wearable sensors for remote health monitoring, Sensors, volume 17, (Issue 1), 2017, pages. 1-45.

L. Corchia, G. Monti, E. De Benedetto, and L.Tarricone, Wearable antennas for remote health care monitoring systems, International Journal of Antennas and Propagation, volume 2017, December 2017, pages 1-11.

K. Kato, H. Matsuki, F. Sato, T. Satoh, and N. Handa, Duplex communicable implanted antenna for magnetic direct feeding method: Functional electrical stimulation, Journal of Applied Physics, volume 105, (Issue 7), March 2009, pages 1-4.

C. Kissi et al., On-body cavity-backed Low-UWB antenna for capsule localization, International journal of wireless information networks, volume 27, September 2019, pages. 30-44.

M. Abbasi, A. Quddious, M. Antoniades, P. Vryonides, and S. Nikolaou, Wearable sensor for communication with implantable devices, 12th European Conference on Antennas and Propagation (EuCAP 2018)., pages 1-4, London, UK, April 2018.

B. Mohamadzade, R. Hashmi , R. Simorangkir , R. Gharaei, S. Ur Rehman, and Q. Abbasi, Recent advances in fabrication methods for flexible antennas in wearable devices: State of the art, Sensors, volume 19, (Issue 10), 2019, pages. 1-21.

T. Tuovinen, T. Kumpuniemi, K. Y. Yazdandoost, M. Hämäläinen and J. Iinatti, Effect of the antenna-human body distance on the antenna matching in UWB WBAN applications, 2013 7th International Symposium on Medical Information and Communication Technology (ISMICT), pages 193-197, Tokyo, Japan, March 2013.

N. H. Abd Rahman, Y. Yamada, and M. Nordin, Analysis on the effects of the human body on the performance of electro-textile antennas for wearable monitoring and tracking application, Materials, volume 12, (Issue 1), May 2019, pages 1-17.

M. Antoniades, M. Abbasi, M. Nikolic, P. Vryonides and S. Nikolaou, Conformal wearable monopole antenna backed by a compact EBG structure for body area networks, 2017 11th European Conference on Antennas and Propagation (EUCAP 2017)., pages 164-166, Paris, France, March 2017.

S. Yan, V. Volskiy, and G. Vandenbosch, Compact dual-band textile PIFA for 433-MHz/2.4-GHz ISM bands, IEEE Antennas Wireless Propagation Letters, volume 16, July 2017, pages 2436–2439.

A. Ashyap et al., Compact and Low-Profile Textile EBG-based antenna for wearable medical applications, IEEE antennas and wireless propagation letters, volume 16, July 2017, pages 2550-2553.

S. Pinapati, D. Ranasinghe and C. Fumeaux, Textile multilayer cavity slot monopole for UHF applications, IEEE Antennas and Wireless Propagation Letters, volume 16, August 2017, pages 2542-2545.

Y. Huang, K. Boyle, Antennas from Theory to Practice (John Wiley & Sons Ltd, 2008).

A. Alizadeh et al., A wearable patch for continuous monitoring of sweat electrolytes during exertion, Lap on a Chip, volume 18, (Issue 17), August 2018, pages 2632-2641.

S. Mohd Zaini and K. Abdul Rani, Wearable inset-fed FR4 microstrip patch antenna design, IOP Conference Series: Materials Science and Engineering, volume 318, March 2018, pages 1-9.

P.Ujjvala Kanthi Prabha, A..Appalanaidu, B. Divyank, Design of a square patch textile antenna for S-Band applications, International Journal of Research and Review, volume 7, (Issue 2); February 2020, pages 348-353.

C. Camacho-Gomez, R. Sanchez-Montero, D. Martínez-Villanueva, P-L. López-Espí and Sancho Salcedo-Sanz, Design of a multi-band microstrip textile patch antenna for LTE and 5G services with the CRO-SL ensemble, Applied Sciences, volume 10,(Issue 3), February 2020, pages 1-17.

A. Za'aba, S. Ibrahim, N. Abdul Malek and A. Ramly, Development of wearable patch antenna for medical application, 2017 IEEE Regional Symposium on Micro and Nanoelectronics (RSM), pages 260-263, Batu Ferringhi, Malaysia, August 2017.

Kai. F. Lee, K. M. Luk, H. W,. Lai, Microstrip Patch Antennas (World Scientific Publishing Co. Pte. Ltd, 2018).

S. Ali, V. Jeoti, T. Saeid, W. Wen, Design of compact microstrip patch antenna for WBAN applications at ISM 2.4 GHz, Indonesian Journal of Electrical Engineering and Computer Science, Volume 10, (Issue 1), pages 401-408, April 2018.

M. Ahmed, M. Ahmed, and A.-E. Shaalan, Novel electro-textile patch antenna on Jeans substrate for wearable applications, Progress in Electromagnetic Research C (PIER C), volume 83, 2018, pages 255-265.

M. Mesquita, A. D’Assunção, J. Oliveira, and Y. Batista, A New conductive ink for microstrip antenna and bioinspired FSS designs on glass and fiberglass substrates, Journal of Microwaves, Optoelectronics and Electromagnetic Applications, volume 18, (Issue 2), June 2019, pages 227-245.

K. Sajith, J. Gandhimohan and T. Shanmuganantham, SRR loaded and CB-CPW fed octagonal shape antenna for wearable applications, 2017 IEEE International Conference on Circuits and Systems (ICCS), Thiruvananthapuram, India, pages 324-329, December 2017.

S. Ahmed, S. T. Qureshi, L. Sydänheimo, L. Ukkonen and T. Björninen, Comparison of wearable E-Textile split ring resonator and slotted patch RFID reader antennas embedded in work gloves, IEEE Journal of Radio Frequency Identification, volume 3, (Issue 4) December 2019, pages 259-264.

R Alrawashdeh, Y. Huang, M. Kod, and A. Sajak, A Broadband flexible implantable loop antenna with complementary split ring resonators, IEEE Antennas and Wireless Propagation Letters, volume 14, pages 1506 – 1509, February 2015.

M. Haerinia, and S. Noghanian, A printed wearable dual-band antenna for wireless power transfer, Sensors, volume 19, April 2019, pages 1-10.

B. Waris, L. Ukkonen, J. Virkki and T. Björninen, Wearable passive UHF RFID tag based on a split ring antenna, 2017 IEEE Radio and Wireless Symposium (RWS), Phoenix, AZ, USA, pages 55-58, January 2017.

S. Ma, L. Ukkonen, L. Sydänheimo, and T. Bjöminen, Dual-layer circularly polarized split ring resonator inspired antenna for wearable UHF RFID tag, 2018 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting, Boston, MA, USA, pages 683-684, July 2018.

S. Ma, L. Sydänheimo, L. Ukkonen and T. Björninen, Split-Ring resonator antenna system with cortical implant and head-worn parts for effective far-field implant communications, IEEE Antennas and Wireless Propagation Letters, volume 17, (Issue 4), April 2018, pages 710-713.

Y. Yamac and S. C. Basaran, A compact dual band implantable antenna based on split-ring resonators with meander line slots, 2016 22nd International Conference on Applied Electromagnetics and Communications (ICECOM), Dubrovnik, Croatia, pages 1-3, September 2016.

R. Li, B. Li, G. Du, X. Sun, and H. Sun, A compact broadband antenna with dual-resonance for implantable devices, Micromachines (Basel), volume 10, (Issue 59), January 2019 , pages 1-7.

S. Bhattacharjee, S. Maity, S. R. Bhadra Chaudhuri and M. Mitra, Metamaterial-inspired wideband biocompatible antenna for implantable applications, IET Microwaves, Antennas & Propagation, volume 12, (Issue 11), August 2018, pages 1799-1805.

A. Ahmed, M. Ur-Rehman and Q. Abbasi, Miniature implantable antenna design for blood glucose monitoring, 2018 International Applied Computational Electromagnetics Society Symposium (ACES), Denver, CO, USA, pages 1-2, March 2018.

R. Marque's, F. Martin, and M. Sorolla, Metamaterials with negative parameters: Theory, design and microwave applications (Wiley & Sons Ltd, 2008).

Q. Shen, B. Hou, Z. Chen, and Z. Wang, Effect of gap width on enhanced magnetic fields in metallic split ring resonators, AIP Advances, volume 2, (Issue 4), Pages 1-9, December 2012.

C. Arora, S. S. Pattnaik, and R. Baral, Multiple split ring resonator inspired dual band microstrip patch antenna array, Microwave Review, volume 27, (Issue 1), pages 1-8, 2019.

L. Li et al., Split-ring resonator-based compact microstrip antenna, Modern Physics Letters B, volume 33,(Issue 4), January 2019, pages 1-10.

M. Sano, K. Yamada and M. Higaki, Design of an electrically small antenna using a broadside-coupled split ring resonator, 2017 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting, San Diego, CA, USA, pages 537-538, July 2017.

A. Rambe, H. Muharry, R. Harahap and S. Suherman, Miniaturization of rectangular patch microstrip antenna by using complementary split ring resonator, 2nd Nommensen International Conference on Technology and Engineering, Medan, Indonesia, pages 1-5, July 2018.

Z. Jiang et al., Wideband loop antenna with split-ring resonators for wireless medical telemetry, IEEE Antennas and Wireless Propagation Letters, volume. 18, (Issue 7), July 2019, pages 1415-1419.

M. Rizwan, Performance Evaluation of wearable antennas using flexible substrates, MS.C. dissertation, Tampere University of Technology, Hervanta, Tampere, Finland., 2015.

802.15.6-2012—IEEE Standard for Local and Metropolitan Area Networks—Part 15.6: Wireless Body Area Networks. [(accessed on Dec. 1, 2019 ]; Available online:

D. Andreuccetti, R. Fossi and C.Petrucci, Calculation of the dielectric properties of body tissues in the frequency range 10 Hz - 100 GHz, Institute for Applied Physics, Italian National Research Council, Florence (Italy), 1997. Accessed: Jan. 25, 2019. [Online]. Available:

R. Alrawashdeh, Implantable antennas for biomedical applications, Ph.D dissertation, University of Liverpool, Liverpool, U.K., 2015.

CST - Computer Simulation Technology. (2013). Accessed: Dec 1, 2019. [Online]. Available:

N. Gupta, Effects of slots on microstrip patch anetnna, International Research Journal of Engineering and Technology (IRJET), volume 4, (Issue 2), pages. 1132-1135, January 2016.

J. J. Borchardt and T. C. Lapointe, U-Slot patch antenna principle and design methodology using characteristic mode analysis and coupled mode theory, IEEE Access, volume 7, August 2019, pages 109375-109385.

M. Rizwan, Performance Evaluation of wearable antennas using flexible substrates, MS.C. dissertation, Tampere University of Technology, Hervanta, Tampere, Finland., 2015.


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