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Employing the dumbbell-shaped longitudinal slot antennas in the planar slotted antenna arrays

Published online by Cambridge University Press:  06 August 2021

Mahdi Moradian Open the ORCID record for Mahdi Moradian [Opens in a new window]
Mahdi Moradian*
Affiliation:
Department of Electrical Engineering, Lenjan Branch, Islamic Azad University, Isfahan, Iran
*
Author for correspondence: Mahdi Moradian, E-mail: moradianpour@gmail.com
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Abstract

The dumbbell-shaped longitudinal slot antennas are employed as a replacement for the round-ended longitudinal slot antennas. Each dumbbell-shaped slot is excited by an iris and a septum that have offsets from the waveguide centerlines. All the slots are also cut along the waveguide centerlines. It is demonstrated that the resonant length of the proposed dumbbell-shaped slot antennas is much smaller than the round-ended longitudinal slot antennas. Hence, the end-to-end spacings between the adjacent radiating slots as well as the end-to-end spacings between the coupling and the radiating slots increased noticeably in comparison with the arrays consist of the round-ended longitudinal slot antennas. This fact indicates that one can neglect the mutual coupling between the neighboring slots that are associated with the exciting higher-order modes at the slot positions. To better demonstrate the effectiveness of the proposed dumbbell-shaped slot antennas, a planar array antenna consists of the proposed dumbbell-shaped slot antennas have been designed, implemented, and tested. The measurement and the simulation results confirm the effectiveness of the proposed slot antennas.

Keywords

Butterfly lobesdumbbell-shaped slotsiris excited centerline longitudinal slot antennalongitudinal slot antennaslot Antennas
Type
Antenna Design, Modelling and Measurements
Information
International Journal of Microwave and Wireless Technologies , Volume 14 , Issue 7 , September 2022 , pp. 914 - 925
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Copyright
Copyright © The Author(s), 2021. Published by Cambridge University Press in association with the European Microwave Association

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References

Elliott, RS (2003) Antenna Theory and Design, Revised Edn. Hoboken, NJ: John Wiley & Sons.CrossRefGoogle Scholar
Volakis, J (2007) Antenna Engineering Handbook, 4th Edn. New York: McGraw-Hill Education.Google Scholar
Jasik, H (1961) Antenna Engineering Handbook. New York: McGraw-Hill.Google Scholar
Lo, YT and Lee, SW (1988) Antenna Handbook: Theory, Applications, and Design. New York: Van Nostrand Reinhold.CrossRefGoogle Scholar
Hirokawa, J and Zhang, M (2014) Waveguide slot array antennas. In Chen, ZN, (ed.), Handbook of Antenna Technologies. Singapore: Springer Singapore, pp. 1–21.Google Scholar
Josefsson, L and Rengarajan, SR. Slotted waveguide array antennas : theory, analysis and design. 2018.CrossRefGoogle Scholar
Sangster, AJ Compact slot array antennas for wireless communications. 2019.CrossRefGoogle Scholar
Silver, S, Engineers IoE. Microwave Antenna Theory and Design: P. Peregrinus; 1984.CrossRefGoogle Scholar
Kurtz, L and Yee, J (1957) Second-order beams of two-dimensional slot arrays. IRE Transactions on Antennas and Propagation 5, 356–362.CrossRefGoogle Scholar
McCormick, G (1958) The effect of the size of a two-dimensional array on the second-order beams. IRE Transactions on Antennas and Propagation 6, 297–298.CrossRefGoogle Scholar
Gruenberg, H (1953) Second-order beams of slotted wave guide arrays. Canadian Journal of Physics 31, 55–69.CrossRefGoogle Scholar
Derneryd, A Butterfly lobes in slotted waveguide antennas. 1987 Antennas and Propagation Society International Symposium: IEEE; 1987. pp. 360–363.Google Scholar
Rengarajan, SR and Steinbeck, M (1993) Longitudinal slots in dielectric-filled rectangular waveguides. Microwave and Optical Technology Letters 6, 649–652.CrossRefGoogle Scholar
Casula, GA, Mazzarella, G and Montisci, G (2006) Design of slot arrays in waveguide partially filled with dielectric slab. Electronics Letters 42, 730–731.CrossRefGoogle Scholar
Gatti, RV, Sorrentino, R and Dionigi, M Equivalent circuit of radiating longitudinal slots in dielectric filled rectangular waveguides obtained with FDTD method. 2002 IEEE MTT-S International Microwave Symposium Digest (Cat No 02CH37278): IEEE; 2002. pp. 871–874.Google Scholar
Rengarajan, S and Steinbeck, M Longitudinal slots in dielectric filled rectangular waveguides. Antennas and Propagation Society Symposium 1991 Digest: IEEE; 1991. pp. 1276–1279.Google Scholar
Joubert, J and McNamara, D (1991) Longitudinal slots in broad wall of rectangular waveguide inhomogeneously loaded with dielectric slab. Electronics Letters 27, 1480–1482.CrossRefGoogle Scholar
Chatterjee, S, Ghatak, R and Poddar, D Analysis of asymmetric iris excited centered slot antenna on the broadwall of rectangular waveguide. ICIEE-2011. 2011.Google Scholar
Park, PK and Kim, SH Centered longitudinal shunt slot fed by a resonant offset ridge iris. Google Patents; 2001.Google Scholar
Kim, B-M, Hong, J-P and Cho, Y-K (2016) Non-offset longitudinal shunt slot exited by an asymmetry compound iris. The Journal of Korean Institute of Electromagnetic Engineering and Science 27, 684–692.CrossRefGoogle Scholar
Chatterjee, S, Poddar, DR and Majumder, A End fed iris excited centered slotted array antenna design with mutual coupling correction. 2013 International Conference on Microwave and Photonics (ICMAP): IEEE; 2013. pp. 1–5.CrossRefGoogle Scholar
Tang, R (1960) A slot with variable coupling and its application to a linear array. IRE Transactions on Antennas and Propagation 8, 97–101.CrossRefGoogle Scholar
Chatterjee, S, Poddar, D and Ghatak, R Field Characterization of an iris excited 10 GHz slot radiator. TENCON 2011-2011 IEEE Region 10 Conference: IEEE; 2011. pp. 1127–1130.CrossRefGoogle Scholar
Goeffels, F, Forman, B and Nonnemaker, C (1968) Electronic scanning of linear slot arrays using diode irises. IEEE Transactions on Antennas and Propagation 16, 380–381.10.1109/TAP.1968.1139170CrossRefGoogle Scholar
Anand, A and Das, S (2010) A novel virtually centered broad wall longitudinal slot for antenna application. International Journal of RF and Microwave Computer-Aided Engineering: Co-sponsored by the Center for Advanced Manufacturing and Packaging of Microwave, Optical, and Digital Electronics (CAMPmode) at the University of Colorado at Boulder 20, 272–278.CrossRefGoogle Scholar
Chatterjee, S, Poddar, D and Ghatak, R Radiation characteristics of partial height curved iris excited centered slot X-band radiator. 2011 IEEE Applied Electromagnetics Conference (AEMC): IEEE; 2011. pp. 1–4.CrossRefGoogle Scholar
Mallahzadeh, A and Mohammad-Ali-Nezhad, S (2015) A low cross-polarization slotted ridged SIW array antenna design with mutual coupling considerations. IEEE Transactions on Antennas and Propagation 63, 4324–4333.CrossRefGoogle Scholar
Azar, TJ. Analysis of slotted-waveguide antenna array excited by tuning screws. PhDT. 1998:1775.Google Scholar
Sing, LK, Chet, KV, Djuanda, J and Sze, LT Analysis of slotted waveguide structure using MoM techniques. 4th National Conference of Telecommunication Technology, 2003 NCTT 2003 Proceedings: IEEE; 2003. pp. 40–44.Google Scholar
Lim, K-S, Koo, V-C and Lim, T-S (2007) Design, simulation and measurement of a post slot waveguide antenna. Journal of Electromagnetic Waves and Applications 21, 1589–1603.CrossRefGoogle Scholar
Green, J, Shnitkin, H and Bertalan, PJ (1990) Asymmetric ridge waveguide radiating element for a scanned planar array. IEEE Transactions on Antennas and Propagation 38, 1161–1165.10.1109/8.56951CrossRefGoogle Scholar
Moradian, M, Khalaj-Amirhosseini, M and Tayarani, M (2009) Application of wiggly ridge waveguide for design of linear array antennas of centered longitudinal shunt slot. International Journal of RF and Microwave Computer-Aided Engineering: Co-sponsored by the Center for Advanced Manufacturing and Packaging of Microwave, Optical, and Digital Electronics (CAMPmode) at the University of Colorado at Boulder 19, 717–726.CrossRefGoogle Scholar
Moradian, M, Tayarani, M and Khalaj-Amirhosseini, M (2011) Planar slotted array antenna fed by single wiggly-ridge waveguide. IEEE Antennas and Wireless Propagation Letters 10, 764–767.CrossRefGoogle Scholar
Moradian, M (2018) Planar slotted array antennas fed by reduced height wiggly ridge waveguides. Journal of Electromagnetic Waves and Applications 32, 1232–1248.CrossRefGoogle Scholar
Moradian, M and Hashemi, S (2018) Linear array of center line longitudinal slots excited by double ridge waveguides. Radioengineering 27, 724–731.CrossRefGoogle Scholar
Khazai, M and Khalaj-Amirhosseini, M (2016) To reduce side lobe level of slotted array antennas using nonuniform waveguides. International Journal of RF and Microwave Computer-Aided Engineering 26, 42–46.CrossRefGoogle Scholar
Pesarakloo, A, Sedighy, SH and Hodjatkashani, F (2017) Sine-wall space-tapered linear slot array antenna with low sidelobe and second-order lobe levels. IEEE Transactions on Antennas and Propagation 66, 1020–1024.CrossRefGoogle Scholar
Esmaeli, S and Sedighy, S (2016) SLL Reduction of slot array antenna by artificial magnetic conductor side walls. Electronics Letters 52, 1513–1514.CrossRefGoogle Scholar
Esmaeli, S and Sedighy, S (2018) Application of artificial magnetic conductor metasurface for optimum design of slotted waveguide array antenna. Applied Physics A 124, 136.CrossRefGoogle Scholar
Elliott, R and O'Loughlin, W (1986) The design of slot arrays including internal mutual coupling. IEEE Transactions on Antennas and Propagation 34, 1149–1154.CrossRefGoogle Scholar
Coetzee, J and Joubert, J (1998) The effect of the inclusion of higher order internal coupling on waveguide slot array performance. Microwave and Optical Technology Letters 17, 76–81.10.1002/(SICI)1098-2760(19980205)17:2<76::AID-MOP2>3.0.CO;2-F3.0.CO;2-F>CrossRefGoogle Scholar
Shaw, G, Rengarajan, S and Elliott, R Analysis of mutual coupling in planar slot array antennas. IEEE Antennas and Propagation Society International Symposium 1992 Digest: IEEE; 1992. pp. 1480–1483.CrossRefGoogle Scholar
Rengarajan, SR (1991) Higher order mode coupling effects in the feeding waveguide of a planar slot array. IEEE Transactions on Microwave Theory and Techniques 39, 1219–1223.CrossRefGoogle Scholar
Mazzarella, G and Montisci, G (2011) Accurate modeling of coupling junctions in dielectric covered waveguide slot arrays. Progress in Electromagnetics Research 17, 59–71.CrossRefGoogle Scholar
Rengarajan, SR (2012) Improved design procedure for slot array antennas using the method of moments analysis. Electromagnetics 32, 221–232.CrossRefGoogle Scholar
Coetzee, JC and Sheel, S (2018) Waveguide slot array design with compensation for higher order mode coupling between inclined coupling slots and neighboring radiating slots. IEEE Transactions on Antennas and Propagation 67, 378–389.CrossRefGoogle Scholar
Kim, B-M, Lee, J-I and Cho, Y-K (2012) Ridge-loaded small round-ended slot for waveguide slot-array antenna. The Journal of Korean Institute of Electromagnetic Engineering and Science 23, 950–957.CrossRefGoogle Scholar
Park, P and Yu, I Characterization of Dumbbell Slots in Rectangular Waveguide by Method of Moments. 1985.Google Scholar
Moradian, M (2019) Employing irises and septums to excite the centreline longitudinal slot antennas. International Journal of RF and Microwave Computer-Aided Engineering 29, e21944.CrossRefGoogle Scholar
Stern, G and Elliott, R (1985) Resonant length of longitudinal slots and validity of circuit representation: theory and experiment. IEEE Transactions on Antennas and Propagation 33, 1264–1271.CrossRefGoogle Scholar
Moradian, M (2019) A computer-aided approach for designing dielectric-covered planar array antennas consisting of longitudinal slots. International Journal of RF and Microwave Computer-Aided Engineering 29, e21615.CrossRefGoogle Scholar