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Abstract

Theory of Characteristic Mode(TCM) has become a research hotspot in antenna design. The development of computational electromagnetic makes it possible to solve the eigenmode of microstrip antenna with arbitrary shape. In this paper, TCM with radiation boundary conditions is proposed to solve the input impedance of the antenna, and TCM based on differential equations is applied to the design of the circular wide-band wearable antenna with polygonal slot. By analyzing the radiation characteristics of different modes of the antenna, the optimal feeding place is selected to excite the desired mode by the normalized electric field distribution of different modes, and then the wide-band characteristics are obtained. Experiments show that the circular wide-band wearable antenna with polygonal slot presented in this paper has good performance with bandwidth enough to covers (5.725GHz–5.85 GHz) frequency band and certain flexural resistance from a certain angle for wearable intelligent equipment applications.

Keywords

Wearable antenna TCM feeding place wide-band

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References

Catherwood

P.A.

, Bukhari

S.S.

, Watt

, et al., Body-centric wireless hospital patient monitoring networks using body-contoured flexible antennas, Iet Microwaves Antennas & Propagation 12(2) (2018), 203–210.

Abbasi-Kesbi

, Nikfarjam

and Hezaveh

A.A.

, Developed wearable miniature sensor to diagnose initial perturbations of cardiorespiratory system, Healthcare Technology Letters 5(6) (2018), 231–235.

Moro

, Agneessens

, Rogier

, et al., Circularly-polarised cavity-backed wearable antenna in SIW technology, Iet Microwaves Antennas & Propagation 12(1) (2018), 127–131.

Paraskevopoulos

, Tsolis

, Vardaxoglou

J.C.

, et al., Cylindrical near-field assessment of wearable antennas for body-centric communications, Iet Microwaves Antennas & Propagation 11(6) (2017), 761–769.

Chen

Y.S.

and Ku

T.Y.

, A low-profile wearable antenna using a miniature high impedance surface for smartwatch applications, IEEE Antennas & Wireless Propagation Letters 15(1) (2016), 1144–1147.

Tong

, et al., Switchable ON-/OFF-body antenna for 2.45GHz WBAN applications, IEEE Transactions on Antennas & Propagation 66(2) (2018), 967–971.

Sathiya

, Sujee

, Subhashini

and Uma Maheswari

, Safeguarding the data by matching two shares of captcha, International Journal of Innovative Research in Computer and Communication Engineering (IJIRCCE) 6(2) (2018).

Sanchezmontero, Optimal design of a planar textile antenna for industrial scientific medical (ISM) 2.4GHz wireless body area networks (WBAN) with the CRO-SL algorithm, Sensors 18(7) (2018), 1982.

Gonçalves

, Carvalho

N.B.

and Pinho

, Small antenna design for very compact devices and wearables, Iet Microwaves Antennas & Propagation 11(6) (2017), 874–879.

10.

Pinapati

S.P.

, Kaufmann

, Ranasinghe

D.C.

, et al., Wearable dual-band stripline-fed half-mode substrate-integrated cavity antenna, Electronics Letters 52(6) (2016), 424–426.

11.

Van

D.B.

, Lemey

, Verhaevert

, et al., A novel manufacturing process for compact, Low-Weight and Flexible Ultra-Wideband Cavity Backed Textile AntennasMaterials 11(1) (2018), 67.

12.

Murali

and Adaekalavan

Dr.S.

, Secured data sharing principles with strong key analysis over cloud crypto system, International Journal of Innovative Research in Computer and Communication Engineering (IJIRCCE) 6(3) (2018).

13.

Karthik

and Rao

T.R.

, Investigations on SAR and thermal effects of a body wearable microstrip antenna, Wireless Personal Communications 96(7) (2017), 1–17.

14.

Zhang

, Wang

and Liu

, Wearable MIMO antenna based on characteristic mode, Journal of Microwave Science 59(4) (2016), 470–473.

15.

Wen

, Hao

, Munoz

M.O.

, et al., A compact and low-profile MIMO antenna using a miniature circular high-impedance surface for wearable applications, IEEE Transactions on Antennas & Propagation 66(1) (2017), 1–1.

16.

Ahmad

S.A.

, Umar

and Shree

Dr.V.U.

, Optimizing Handover with MIH in the New Generation Networks systems, International Journal of Innovative Research in Computer and Communication Engineering (IJIRCCE) 6(4) (2018).

17.

Soh

P.J.

, Vandenbosch

G.A.E.

, Ooi

S.L.

, et al., Wearable dual-band Sierpinski fractal PIFA using conductive fabric, Electronics Letters 47(6) (2011), 365–367.

18.

Svezhentsev

and Vandenbosch

G.A.E.

, Efficient spatial domain moment method solution of cylindrical rectangular microstrip antennas, IEE Proceedings-Microwaves, Antennas and Propagation 153(4) (2006), 376.

19.

Y.T.

, Solomon

and Richards

W.F.

, Theory and experiment on microstrip antennas, IEEE Trans on Antenna & Propagation 27(2) (1985), 137–145.

20.

Paul

and Jeyaraj

, Internet of things: A primer, Human Behavior and Emerging Technologies 1(1) (2019), 37–47.

21.

Shaker

, Safavi-Naeini

and Sangary

, Modern antenna design using mode analysis techniques, Progress in Electromagnetics Research B 62(1) (2015), 153–165.

A novel wide-band polygonal slot circular antenna using the theory of characteristic modes

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