DOI: https://doi.org/10.3103/S0735272715040019
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RP of the suggested antenna, that are calculated at the frequencies 190, 260, and 330 MHz using the crystal_U software and using the HFSS software

End-fire ultrawideband low profile dipole-slot antenna

Fedor F. Dubrovka, A. V. Tolkachev

Abstract


This paper presents a simple end-fire ultrawideband dipole-slot antenna, which consists of a single plate dipole located above the screen and loaded by two slots, that are formed by three metal sheets. The results of numerical investigation of its matching and radiation characteristics using integral equations technique for the current and the charge are demonstrated in the article. An optimized variant of the antenna has a low profile (0.17λmax) and in the frequency range with bandwidth ratio 3.2:1 it provides VSWR < 2 in the case of excitation by the 50 W feeder, and also it provides almost unalterable shape of the radiation pattern for the wavelengths, which are close to the λ/2 distance to the screen, what cannot be obtained for the dipole antenna above the screen. It has been shown that such an effect is achieved due to the in-phase combining of the radiations emitted by the dipole-slot system and by the screen in the front half-space.


Keywords


vibrator-slot antenna; end-fire antenna; ultrawideband antenna; low profile antenna

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References


Ultrawideband Antennas: Collection of Articles. Moscow: Mir, 1964 [in Russian, ed. by L. B. Benenson].

LEE, J.J.; LIVINGSTON, S.; KOENIG, R. Wide band long slot array antennas. Proc. of IEEE Int. Symp. on Antennas and Propagation Society, 22–27 June 2003, Columbus, OH, USA. IEEE, 2003, v.2, p.452-455, DOI: http://dx.doi.org/10.1109/APS.2003.1219273.

LEE, J.J.; LIVINGSTON, S.; KOENIG, R.; NAGATA, D.; LAIO, L. Long slot arrays – Part 2: Ultra wideband test results. Proc. of IEEE Int. Symp. on Antennas and Propagation Society, 3–8 July 2005. IEEE, 2005, v.1A, p.586-589, DOI: http://dx.doi.org/10.1109/APS.2005.1551387.

NETO, ANDREA; LEE, J.J. ‘Infinite bandwidth’ long slot array antenna. IEEE Antennas Wireless Propag. Lett., 2005, v.4, p.75-78, DOI: http://dx.doi.org/10.1109/LAWP.2005.844141.

NETO, ANDREA; LEE, J.J. Ultrawide-band properties of long slot arrays. IEEE Trans. Antennas Propag., Feb. 2006, v.54, n.2, p.534-543, DOI: http://dx.doi.org/10.1109/TAP.2006.877169.

LEE, J.J.; LIVINGSTON, STAN; KOENIG, RICK; NAGATA, DENNIS; LAI, LARRY L. Compact light weight UHF arrays using long slot apertures. IEEE Trans. Antennas Propag., Jul. 2006, v.54, n.7, p.2009-2015, DOI: http://dx.doi.org/10.1109/APS.2008.4619302.

LEE, J.J.; LIVINGSTON, S.; NAGATA, D. A low profile 10:1 (200–2000 MHz) wide band long slot array. Proc. of IEEE Int. Symp. on Antennas and Propagation Society, AP-S 2008, 5–11 July 2008, San Diego, CA. IEEE, 2008, p.1-4, DOI: http://dx.doi.org/10.1109/APS.2008.4619302.

DUBROVKA, F.F.; TOLKACHEV, A.V. An effective method of numerical solution of a boundary electrodynamics problem for arbitrary conducting surfaces. Izv. Vyssh. Uchebn. Zaved., Radioelektron., 2009, v.52, n.11, p.3-30, http://radio.kpi.ua/article/view/S0021347009110016; Radioelectron. Commun. Syst., 2009, v.52, n.11, p.573-590, DOI: http://dx.doi.org/10.3103/S0735272709110016.

TOLKACHEV, A.V.; DUBROVKA, F.F. Numerical analysis of small parabolic antennas using the method of current and change integral equations. Izv. Vyssh. Uchebn. Zaved., Radioelektron., 2013, v.56, n.3, p.11-27, http://radio.kpi.ua/article/view/S0021347013030023; Radioelectron. Commun. Syst., 2013, v.56, n.3, p.114-126, DOI: http://dx.doi.org/10.3103/S0735272713030023.







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