A Novel Structure and Design Optimization of Compact Spline-Parameterized UWB Slot Antenna

• Autorzy: Koziel S. , Bekasiewicz A.

Identyfikatory

DOI

10.1515/mms-2016-0054

• Języki publikacji: EN

Abstrakty

EN

In this paper, a novel structure of a compact UWB slot antenna and its design optimization procedure has been presented. In order to achieve a sufficient number of degrees of freedom necessary to obtain a considerable size reduction rate, the slot is parameterized using spline curves. All antenna dimensions are simultaneously adjusted using numerical optimization procedures. The fundamental bottleneck here is a high cost of the electromagnetic (EM) simulation model of the structure that includes (for reliability) an SMA connector. Another problem is a large number of geometry parameters (nineteen). For the sake of computational efficiency, the optimization process is therefore performed using variable-fidelity EM simulations and surrogate-assisted algorithms. The optimization process is oriented towards explicit reduction of the antenna size and leads to a compact footprint of 199 mm² as well as acceptable matching within the entire UWB band. The simulation results are validated using physical measurements of the fabricated antenna prototype.

Słowa kluczowe

EN

compact antennas; computer-aided design (CAD); EM-driven design; UWB antennas; slot antennas; surrogate-based optimization

• Wydawca: Komitet Metrologii i Aparatury Naukowej PAN
• Czasopismo: Metrology and Measurement Systems
• Rocznik: 2016
• Tom: Vol. 23, nr 4
• Strony: 637--643
• Opis fizyczny: Bibliogr. 18 poz., rys., tab., wykr., wzory

Twórcy

autor

Koziel S.

• Reykjavík University, School of Science and Engineering, Menntavegur 1, 101 Reykjavík, Iceland

autor

Bekasiewicz A.

• Reykjavík University, School of Science and Engineering, Menntavegur 1, 101 Reykjavík, Iceland

Bibliografia

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• [3] Ur-Rehman, M., Abbasi, Q.H., Akram, M., Parini, C. (20150. Design of band-notched ultra wideband antenna for indoor and wearable wireless communications. IET Microwaves, Ant. Prop., 9(3), 243-251.
• [4] Chahat, N., Zhadobov, M., Sauleau, R., Ito, K. (2011). A compact UWB antenna for on-body applications. IEEE Trans. Ant. Prop., 59(4), 1123-1131.
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• [6] Li, L., Cheung, S.W., Yuk, T.I. (2013). Compact MIMO antenna for portable devices in UWB applications. IEEE Trans. Antennas Prop., 61(8), 4257-4264.
• [7] Bekasiewicz, A., Koziel, S. (2015). Structure and Computationally-Efficient Simulation-Driven Design of Compact UWB Monopole Antenna. IEEE Ant. Wireless Prop. Lett., 14, 1282−1285.
• [8] Li, J.F., Chu, Q.X., Li, Z.H., Xia, X.X. (2013). Compact Dual Band-Notched UWB MIMO Antenna With High Isolation. IEEE Trans. Ant. Prop., 61(9), 4759-4766.
• [9] Roshna, T.K., Deepak, U., Sajitha, V.R., Mohanan, P. (2014). Coplanar stripline-fed compact UWB antenna. Electronics Lett., 50(17), 1181-1182.
• [10] Gautam, A.K., Yadav, S., Kanaujia, B.K. (2013). A CPW-fed compact UWB microstrip antenna. IEEE Ant. Wireless Prop. Lett., 12,. 151-154.
• [11] Song S., Nikolova, N.K. (2008). Memory efficient method for wideband self-adjoint sensitivity analysis. IEEE Trans. Microwave Theory Tech., 56(8), 1917-1927.
• [12] Ghassemi, M., Bakr M., Sangary, N. (2013). Antenna design exploiting adjoint sensitivity-based geometry evolution. IET Microwaves Ant. Prop., 7(4), 268-276.
• [13] Koziel, S., Ogurtsov, S. (2014). Antenna design by simulation-driven optimization. Springer.
• [14] Yelten, M.B., Zhu, T., Koziel, S., Franzon, P.D., Steer, M.B. (2012). Demystifying surrogate modeling for circuits and systems. IEEE Circuits and Systems Magazine, 12(1), 45-63.
• [15] Koziel, S., Bekasiewicz, A. (2015). Fast EM-driven size reduction of antenna structures by means of adjoint sensitivities and trust regions. IEEE Antennas Wireless Prop. Lett., 14, 1681-1684.
• [16] Chu, Q.X., Mao, C.X., Zhu, H. (2013). A compact notched band UWB slot antenna with sharp selectivity and controllable bandwidth. IEEE Trans. Ant. Prop., 61, 3961-3966.
• [17] CST Microwave Studio, ver. 2013, CST AG, Bad Nauheimer Str. 19, Germany, 2013.
• [18] Liu, Y.F., Wang, P., Qin, H. (2014). Compact ACS-fed UWB monopole antenna with extra Bluetooth band. Electronics Lett., 50(18), 1263-1264.

Uwagi

EN

The authors would like to thank Computer Simulation Technology AG, Darmstadt, Germany, for making CST Microwave Studio available. This work is partially supported by the Icelandic Centre for Research (RANNIS) Grant 141272051 and by National Science Centre of Poland Grant 2014/15/B/ST7/04683.

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).