{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,22]],"date-time":"2026-04-22T23:30:11Z","timestamp":1776900611618,"version":"3.51.2"},"reference-count":62,"publisher":"MDPI AG","issue":"14","license":[{"start":{"date-parts":[[2023,7,10]],"date-time":"2023-07-10T00:00:00Z","timestamp":1688947200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Intel\u2019s University Research Office"},{"name":"International Postgraduate Research Scholarship (IPRS)"},{"name":"Macquarie University Research Excellence Scholarship (MQRES)"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>Beam-switching is one of the paramount focuses of 28 GHz millimeter-wave 5G devices. In this paper, a one-dimensional (1D) pattern reconfigurable leaky-wave antenna (LWA) was investigated and developed for wireless terminals. In order to provide a cost-effective solution, a uniform half-width LWA was used. The 1D beam-switching LWA was designed using three feed points at three different positions; by selecting the feeds, the direction of the beam can be switched. The antenna can switch the beam in three different directions along the antenna axis, such as backward, broadside, and forward. The 1D beam-switching antenna was fabricated, and because of the wide beamwidth, the measured radiation patterns can fill 128\u2218 of space (3 dB coverage), from \u03b8 = \u221264\u2218 to +64\u2218 at \u03d5 = 0\u2218. Following this, two of these antennas were placed at right angles to each other to achieve two-directional (2D) beam switching. The 2D beam-switching antenna pair was also prototyped and tested after integrating them into the ground plane of a wireless device. The antenna is able to point the beam in five different directions; moreover, its beam covers 167\u2218 (\u03b8 = \u221289\u2218 to +78\u2218) at \u03d5 = 0\u2218, and 154\u2218 (\u03b8 = \u221272\u2218 to +82\u2218) at \u03d5 = 90\u2218.<\/jats:p>","DOI":"10.3390\/s23146285","type":"journal-article","created":{"date-parts":[[2023,7,11]],"date-time":"2023-07-11T01:58:14Z","timestamp":1689040694000},"page":"6285","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":14,"title":["Beam-Switching Antennas for 5G Millimeter-Wave Wireless Terminals"],"prefix":"10.3390","volume":"23","author":[{"given":"Khaled M.","family":"Morshed","sequence":"first","affiliation":[{"name":"School of Engineering, Macquarie University, Sydney, NSW 2109, Australia"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6614-5064","authenticated-orcid":false,"given":"Debabrata K.","family":"Karmokar","sequence":"additional","affiliation":[{"name":"UniSA STEM, University of South Australia, Mawson Lakes, Adelaide, SA 5095, Australia"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3681-0086","authenticated-orcid":false,"given":"Karu P.","family":"Esselle","sequence":"additional","affiliation":[{"name":"School of Electrical and Data Engineering, University of Technology Sydney, Ultimo, NSW 2007, Australia"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0946-9561","authenticated-orcid":false,"given":"Ladislau","family":"Matekovits","sequence":"additional","affiliation":[{"name":"Department of Electronics and Telecommunications, Politecnico di Torino, 10129 Turin, Italy"},{"name":"Istituto di Elettronica e di Ingegneria dell\u2019Informazione e Delle Telecomunicazioni, National Research Council of Italy, 10129 Turin, Italy"},{"name":"Department of Measurements and Optical Electronics, Politehnica University Timisoara, 300006 Timisoara, Romania"}]}],"member":"1968","published-online":{"date-parts":[[2023,7,10]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Jeon, M., Seo, Y., Cho, J., Lee, C., Jang, J., Lee, Y., Kwon, H.W., and Kahng, S. (2021). Investigation on Beam Alignment of a Microstrip-Line Butler Matrix and an SIW Butler Matrix for 5G Beamforming Antennas through RF-to-RF Wireless Sensing and 64-QAM Tests. Sensors, 21.","DOI":"10.3390\/s21206830"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"2038","DOI":"10.1109\/LAWP.2021.3102375","article-title":"Low-Profile, Broadband, Dual-Linearly Polarized, and Wide-Angle Millimeter-Wave Antenna Arrays for Ka-Band 5G Applications","volume":"20","author":"Tong","year":"2021","journal-title":"IEEE Antennas Wirel. Propag. Lett."},{"key":"ref_3","doi-asserted-by":"crossref","unstructured":"Morshed, K.M., Karmokar, D.K., and Esselle, K.P. (2023). Antennas for Licensed Shared Access in 5G Communications with LTE Mid- and High-Band Coverage. Sensors, 23.","DOI":"10.3390\/s23042095"},{"key":"ref_4","doi-asserted-by":"crossref","unstructured":"S\u00e1nchez, B.J., Covarrubias, D.H., Yepes, L.F., Panduro, M.A., and Ju\u00e1rez, E. (2021). Effects of Narrow Beam Phased Antenna Arrays over the Radio Channel Metrics, Doppler Power Spectrum, and Coherence Time, in a Context of 5G Frequency Bands. Appl. Sci., 11.","DOI":"10.3390\/app112110081"},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"29430","DOI":"10.1109\/ACCESS.2020.2970753","article-title":"A High Gain and Wideband Narrow-Beam Antenna for 5G Millimeter-Wave Applications","volume":"8","author":"Ullah","year":"2020","journal-title":"IEEE Access"},{"key":"ref_6","doi-asserted-by":"crossref","unstructured":"Zhang, Q., Chai, B., Chen, J., and Yang, W. (2023). A Compact Aperture-Sharing Sub-6 GHz\/Millimeter-Wave Dual-Band Antenna. Sensors, 23.","DOI":"10.3390\/s23094400"},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"2367","DOI":"10.1109\/LAWP.2022.3193808","article-title":"Low-Profile Dual-Wideband Dual-Polarized Antenna for 5G Millimeter-Wave Communications","volume":"21","author":"Yang","year":"2022","journal-title":"IEEE Antennas Wirel. Propag. Lett."},{"key":"ref_8","doi-asserted-by":"crossref","unstructured":"Abbas, M.A., Allam, A., Gaafar, A., Elhennawy, H.M., and Sree, M.F.A. (2023). Compact UWB MIMO Antenna for 5G Millimeter-Wave Applications. Sensors, 23.","DOI":"10.3390\/s23052702"},{"key":"ref_9","doi-asserted-by":"crossref","unstructured":"Chen, Z., Zhang, W., and Wang, K. (2023). Single-Layer Interconnected Magneto-Electric Dipole Antenna Array for 5G Communication Applications. Electronics, 12.","DOI":"10.22541\/au.167418187.79331905\/v1"},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"11123","DOI":"10.1109\/JIOT.2021.3051603","article-title":"Supporting IoT with Rate-Splitting Multiple Access in Satellite and Aerial-Integrated Networks","volume":"8","author":"Lin","year":"2021","journal-title":"IEEE Internet Things J."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"185","DOI":"10.1109\/TCCN.2022.3215527","article-title":"Beam Management in Ultra-Dense mmWave Network via Federated Reinforcement Learning: An Intelligent and Secure Approach","volume":"9","author":"Xue","year":"2023","journal-title":"IEEE Trans. Cogn. Commun. Netw."},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"1065","DOI":"10.1109\/JSAC.2014.2328098","article-title":"What Will 5G Be?","volume":"32","author":"Andrews","year":"2014","journal-title":"IEEE J. Sel. Areas Commun."},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"335","DOI":"10.1109\/ACCESS.2013.2260813","article-title":"Millimeter Wave Mobile Communications for 5G Cellular: It Will Work!","volume":"1","author":"Rappaport","year":"2013","journal-title":"IEEE Access"},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"122","DOI":"10.1109\/MCOM.2014.6736752","article-title":"Cellular architecture and key technologies for 5G wireless communication networks","volume":"52","author":"Wang","year":"2014","journal-title":"IEEE Commun. Mag."},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"74","DOI":"10.1109\/MCOM.2014.6736746","article-title":"Five disruptive technology directions for 5G","volume":"52","author":"Boccardi","year":"2014","journal-title":"IEEE Commun. Mag."},{"key":"ref_16","doi-asserted-by":"crossref","unstructured":"Morshed, K.M., Karmokar, D.K., and Esselle, K.P. (2017, January 4\u20137). Highly Efficient Leaky-Wave Antenna Array for 28-GHz Millimeter-Wave Terminals. Proceedings of the IEEE 85th Vehicular Technology Conference (VTC Spring), Sydney, Australia.","DOI":"10.1109\/VTCSpring.2017.8108386"},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"82","DOI":"10.1109\/MCOM.2014.6736747","article-title":"Network densification: The dominant theme for wireless evolution into 5G","volume":"52","author":"Bhushan","year":"2014","journal-title":"IEEE Commun. Mag."},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"86","DOI":"10.1109\/MCOM.2017.1601118","article-title":"Radio Resource Management Considerations for 5G Millimeter Wave Backhaul and Access Networks","volume":"55","author":"Li","year":"2017","journal-title":"IEEE Commun. Mag."},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"65","DOI":"10.1109\/MCOM.2014.6957145","article-title":"Design considerations for a 5G network architecture","volume":"52","author":"Agyapong","year":"2014","journal-title":"IEEE Commun. Mag."},{"key":"ref_20","doi-asserted-by":"crossref","unstructured":"Ahamed, M.M., and Faruque, S. (2021). 5G Network Coverage Planning and Analysis of the Deployment Challenges. Sensors, 21.","DOI":"10.3390\/s21196608"},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"63","DOI":"10.1109\/MCOM.2014.6894454","article-title":"Study and prototyping of practically large-scale mmWave antenna systems for 5G cellular devices","volume":"52","author":"Hong","year":"2014","journal-title":"IEEE Commun. Mag."},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"6474","DOI":"10.1109\/TAP.2017.2734159","article-title":"Small-Scale, Local Area, and Transitional Millimeter Wave Propagation for 5G Communications","volume":"65","author":"Rappaport","year":"2017","journal-title":"IEEE Trans. Antennas Propag."},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"2983","DOI":"10.1109\/LAWP.2017.2756560","article-title":"A Multiband Millimeter-Wave Two-Dimensional Array Based on Enhanced Franklin Antenna for 5G Wireless Systems","volume":"16","author":"Jilani","year":"2017","journal-title":"IEEE Antennas Wirel. Propag. Lett."},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"6250","DOI":"10.1109\/TAP.2017.2740963","article-title":"Millimeter-wave 5G Antennas for Smartphones: Overview and Experimental Demonstration","volume":"65","author":"Hong","year":"2017","journal-title":"IEEE Trans. Antennas Propag."},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"6646","DOI":"10.1109\/TAP.2017.2761979","article-title":"Exploitation of Dual-polarization Diversity for 5G Millimeter-Wave MIMO Beamforming Systems","volume":"65","author":"Jo","year":"2017","journal-title":"IEEE Trans. Antennas Propag."},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"601","DOI":"10.1109\/JLT.2017.2763156","article-title":"Demonstration of IFoF based Mobile Fronthaul in 5G Prototype with 28 GHz Millimeter-wave","volume":"36","author":"Sung","year":"2018","journal-title":"J. Lightw. Technol."},{"key":"ref_27","doi-asserted-by":"crossref","first-page":"106","DOI":"10.1109\/MWC.2016.1400374RP","article-title":"5G Millimeter-Wave Antenna Array: Design and Challenges","volume":"24","author":"Zhang","year":"2017","journal-title":"IEEE Wirel. Commun."},{"key":"ref_28","doi-asserted-by":"crossref","unstructured":"You, C., Choi, J., Ryu, H., Kim, D., Kim, G., and Kim, S. (2022, January 18\u201320). Wideband Dual-Polarized On-Board Antenna for 5G mmWave Mobile Application. Proceedings of the 2022 14th Global Symposium on Millimeter-Waves & Terahertz (GSMM), Seoul, Republic of Korea.","DOI":"10.1109\/GSMM53818.2022.9792357"},{"key":"ref_29","doi-asserted-by":"crossref","unstructured":"Li, W.Y., Chung, W., and Wong, K.L. (2020, January 15\u201320). Highly-Integrated Dual-Band mmWave Antenna Array for 5G Mobile Phone Application. Proceedings of the 2020 14th European Conference on Antennas and Propagation (EuCAP), Copenhagen, Denmark.","DOI":"10.23919\/EuCAP48036.2020.9135212"},{"key":"ref_30","doi-asserted-by":"crossref","first-page":"64306","DOI":"10.1109\/ACCESS.2021.3075495","article-title":"Design and Analysis of Dual Polarized Broadband Microstrip Patch Antenna for 5G mmWave Antenna Module on FR4 Substrate","volume":"9","author":"Kim","year":"2021","journal-title":"IEEE Access"},{"key":"ref_31","doi-asserted-by":"crossref","first-page":"22472","DOI":"10.1109\/ACCESS.2022.3152769","article-title":"Wideband Three Loop Element Antenna Array for Future 5G mmwave Devices","volume":"10","author":"Kiani","year":"2022","journal-title":"IEEE Access"},{"key":"ref_32","unstructured":"Federal Communications Commission (2017). Use of Spectrum Bands Above 24 GHz For Mobile Radio Services."},{"key":"ref_33","doi-asserted-by":"crossref","first-page":"101401","DOI":"10.1016\/j.phycom.2021.101401","article-title":"Feasibility study of 28 GHz and 38 GHz millimeter-wave technologies for fog radio access networks using multi-slope path loss model","volume":"47","author":"Dimyati","year":"2021","journal-title":"Phys. Commun."},{"key":"ref_34","doi-asserted-by":"crossref","unstructured":"Matekovits, L., Kanaujia, B.K., Kishor, J., and Gupta, S.K. (2022). Printed Antennas for 5G Networks, Springer International Publishing.","DOI":"10.1007\/978-3-030-87605-0"},{"key":"ref_35","doi-asserted-by":"crossref","first-page":"971","DOI":"10.1109\/LAWP.2019.2906775","article-title":"Quasi-Yagi Antenna Array with Modified Folded Dipole Driver for mmWave 5G Cellular Devices","volume":"18","author":"Hwang","year":"2019","journal-title":"IEEE Antennas Wirel. Propag. Lett."},{"key":"ref_36","doi-asserted-by":"crossref","first-page":"462","DOI":"10.1109\/TAP.2017.2772084","article-title":"A Novel 28 GHz Beam Steering Array for 5G Mobile Device with Metallic Casing Application","volume":"66","author":"Yu","year":"2018","journal-title":"IEEE Trans. Antennas Propag."},{"key":"ref_37","doi-asserted-by":"crossref","first-page":"1610","DOI":"10.1109\/LAWP.2022.3175270","article-title":"Electronically Controlled Fixed-Frequency Beam-Scanning Periodic Leaky-Wave Antenna with Positive-Order-Harmonic Radiations","volume":"21","author":"Wang","year":"2022","journal-title":"IEEE Antennas Wirel. Propag. Lett."},{"key":"ref_38","doi-asserted-by":"crossref","unstructured":"Yang, Q.L., Ban, Y.L., Yang, S.R., and Li, M.Y. (2016, January 5\u20137). Omnidirectional slot arrays fed by stacked butler matrix for 5G handset devices. Proceedings of the IEEE 9th UK-Europe-China Workshop Millimetre Waves Terahertz Tech., Qingdao, China.","DOI":"10.1109\/UCMMT.2016.7874026"},{"key":"ref_39","unstructured":"Chang, W.S., Yang, C.F., Chang, C.K., Liao, W.J., Cho, L., and Chen, W.S. (2016, January 10\u201315). Pattern reconfigurable millimeter-wave antenna design for 5G handset applications. Proceedings of the European Conference on Antennas and Propagation (EuCAP), Davos, Switzerland."},{"key":"ref_40","doi-asserted-by":"crossref","first-page":"5269","DOI":"10.1109\/TAP.2021.3061110","article-title":"SIW Cavity-Fed Filtennas for 5G Millimeter-Wave Applications","volume":"69","author":"Lu","year":"2021","journal-title":"IEEE Trans. Antennas Propag."},{"key":"ref_41","doi-asserted-by":"crossref","first-page":"6345","DOI":"10.1109\/TCOMM.2021.3088898","article-title":"Secrecy-Energy Efficient Hybrid Beamforming for Satellite-Terrestrial Integrated Networks","volume":"69","author":"Lin","year":"2021","journal-title":"IEEE Trans. Commun."},{"key":"ref_42","doi-asserted-by":"crossref","first-page":"38523","DOI":"10.1109\/ACCESS.2022.3165562","article-title":"A Low-Profile Dual-Band Dual-Polarized Quasi-Endfire Phased Array for mmWave 5G Smartphones","volume":"10","author":"Rao","year":"2022","journal-title":"IEEE Access"},{"key":"ref_43","doi-asserted-by":"crossref","first-page":"7272","DOI":"10.1109\/TAP.2019.2935088","article-title":"Continuous Beam Scanning at a Fixed Frequency with a Composite Right-\/Left-Handed Leaky-Wave Antenna Operating Over a Wide Frequency Band","volume":"67","author":"Chen","year":"2019","journal-title":"IEEE Trans. Antennas Propag."},{"key":"ref_44","doi-asserted-by":"crossref","first-page":"5046","DOI":"10.1109\/TAP.2012.2208089","article-title":"Electronically Steerable 1-D Fabry-Perot Leaky-Wave Antenna Employing a Tunable High Impedance Surface","volume":"60","author":"Weily","year":"2012","journal-title":"IEEE Trans. Antennas Propag."},{"key":"ref_45","doi-asserted-by":"crossref","unstructured":"Mittra, R. (2018). Developments in Antenna Analysis and Synthesis, Part-1, The Institution of Engineering and Technology (IET). Chapter 5.","DOI":"10.1049\/SBEW543G"},{"key":"ref_46","doi-asserted-by":"crossref","first-page":"5372","DOI":"10.1109\/TAP.2015.2490252","article-title":"Periodic U-Slot-Loaded Dual-Band Half-Width Microstrip Leaky-Wave Antennas for Forward and Backward Beam Scanning","volume":"63","author":"Karmokar","year":"2015","journal-title":"IEEE Trans. Antennas Propag."},{"key":"ref_47","doi-asserted-by":"crossref","unstructured":"Chu, D., Mao, Y., Li, H., Bie, H., and Zhou, Y. (2023). Dual-Polarized Multi-Beam Fixed-Frequency Beam Scanning Leaky-Wave Antenna. Sensors, 23.","DOI":"10.3390\/s23115070"},{"key":"ref_48","doi-asserted-by":"crossref","unstructured":"Karmokar, D.K., Morshed, K.M., Hossain, S., and Mollah, N. (2015, January 10\u201312). A high-gain slot-loaded microstrip patch antenna fed by a half-width microstrip line for 5.5 and 5.8 GHz Wi-Fi\/WiMAX applications. Proceedings of the 2nd International Conference on Electrical Information and Communication Technologies (EICT), Khulna, Bangladesh.","DOI":"10.1109\/EICT.2015.7391976"},{"key":"ref_49","doi-asserted-by":"crossref","unstructured":"Arya, V., Garg, T., and Al-Khafaji, H.M.R. (2023). High Gain and Wide-Angle Continuous Beam Scanning SIW Leaky-Wave Antenna. Electronics, 12.","DOI":"10.3390\/electronics12020370"},{"key":"ref_50","doi-asserted-by":"crossref","first-page":"2224","DOI":"10.1109\/LAWP.2022.3195215","article-title":"SIW-Based -Band Leaky-Wave Antenna with Improved Beam Steering Performance","volume":"21","author":"Xu","year":"2022","journal-title":"IEEE Antennas Wirel. Propag. Lett."},{"key":"ref_51","doi-asserted-by":"crossref","first-page":"1809","DOI":"10.1109\/LAWP.2019.2930668","article-title":"Printed Leaky-Wave Antenna with Aperture Control Using Width-Modulated Microstrip Lines and TM Surface-Wave Feeding by SIW Technology","volume":"18","author":"Kuznetcov","year":"2019","journal-title":"IEEE Antennas Wirel. Propag. Lett."},{"key":"ref_52","doi-asserted-by":"crossref","unstructured":"Kamalzadeh, S., and Soleimani, M. (2022). A Novel SIW Leaky-Wave Antenna for Continuous Beam Scanning from Backward to Forward. Electronics, 11.","DOI":"10.3390\/electronics11121804"},{"key":"ref_53","doi-asserted-by":"crossref","unstructured":"Karmokar, D.K., and Guo, Y.J. (2017, January 11\u201315). Planar leaky-wave antennas for low-cost radar. Proceedings of the 2017 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC), Verona, Italy.","DOI":"10.1109\/APWC.2017.8062255"},{"key":"ref_54","doi-asserted-by":"crossref","first-page":"152839","DOI":"10.1016\/j.aeue.2019.152839","article-title":"Design for radiation broadside direction using half-width microstrip leaky-wave antenna array","volume":"110","author":"Mohsen","year":"2019","journal-title":"AEU\u2014Int. J. Electron. Commun."},{"key":"ref_55","doi-asserted-by":"crossref","first-page":"2987","DOI":"10.1109\/TAP.2020.3029721","article-title":"Backward-to-Forward Wide-Angle Fast Beam-Scanning Leaky-Wave Antenna with Consistent Gain","volume":"69","author":"Jiang","year":"2021","journal-title":"IEEE Trans. Antennas Propag."},{"key":"ref_56","doi-asserted-by":"crossref","unstructured":"Karmokar, D.K., Esselle, K.P., Thalakotuna, D.N.P., Heimlich, M., and Matekovits, L. (2013, January 17\u201319). A leaky-wave antenna for beam steering in forward and backward directions. Proceedings of the IEEE 2013 Tencon\u2014Spring, Sydney, Australia.","DOI":"10.1109\/TENCONSpring.2013.6584415"},{"key":"ref_57","doi-asserted-by":"crossref","first-page":"1262","DOI":"10.1109\/TAP.2016.2529646","article-title":"Wideband Microstrip Leaky-Wave Antennas with Two Symmetrical Side Beams for Simultaneous Dual-Beam Scanning","volume":"64","author":"Karmokar","year":"2016","journal-title":"IEEE Trans. Antennas Propag."},{"key":"ref_58","doi-asserted-by":"crossref","unstructured":"Xie, S., Li, J., Deng, G., Feng, J., and Xiao, S. (2020). A Wide-Angle Scanning Leaky-Wave Antenna Based on a Composite Right\/Left-Handed Transmission Line. Appl. Sci., 10.","DOI":"10.3390\/app10061927"},{"key":"ref_59","doi-asserted-by":"crossref","first-page":"9888","DOI":"10.1109\/TAP.2022.3184542","article-title":"A Substrate Integrated Slot Leaky-Wave Antenna for Point-to-Point Communication","volume":"70","author":"Zhang","year":"2022","journal-title":"IEEE Trans. Antennas Propag."},{"key":"ref_60","doi-asserted-by":"crossref","unstructured":"Karmokar, D.K., Thalakotuna, D.N.P., Esselle, K.P., and Heimlich, M. (2013, January 7\u201313). Controlling the beam scanning limits of a microstrip leaky-wave antenna. Proceedings of the 2013 IEEE Antennas and Propagation Society International Symposium (APSURSI), Orlando, FL, USA.","DOI":"10.1109\/APS.2013.6711325"},{"key":"ref_61","doi-asserted-by":"crossref","first-page":"341","DOI":"10.1049\/iet-map:20060011","article-title":"Half width leaky wave antennas","volume":"1","author":"Zelinski","year":"2007","journal-title":"IET Microw. Antennas Propag."},{"key":"ref_62","unstructured":"Volakis, J. (2007). Antenna Engineering Handbook, McGraw-Hill Professional. [4th ed.]. Chapter 11."}],"container-title":["Sensors"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/1424-8220\/23\/14\/6285\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,10]],"date-time":"2025-10-10T20:10:12Z","timestamp":1760127012000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/1424-8220\/23\/14\/6285"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2023,7,10]]},"references-count":62,"journal-issue":{"issue":"14","published-online":{"date-parts":[[2023,7]]}},"alternative-id":["s23146285"],"URL":"https:\/\/doi.org\/10.3390\/s23146285","relation":{},"ISSN":["1424-8220"],"issn-type":[{"value":"1424-8220","type":"electronic"}],"subject":[],"published":{"date-parts":[[2023,7,10]]}}}