{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,21]],"date-time":"2026-05-21T05:17:50Z","timestamp":1779340670631,"version":"3.51.4"},"reference-count":58,"publisher":"MDPI AG","issue":"9","license":[{"start":{"date-parts":[[2022,4,24]],"date-time":"2022-04-24T00:00:00Z","timestamp":1650758400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>A stacked multi-layer substrate integrated waveguide (SIW) microstrip patch antenna with broadband operating bandwidth and low cross-polarization radiation is provided. A complete study on the propagating element bandwidth and cross polarization level is presented to demonstrate the importance of the design. The proposed antenna includes three stacked printed circuit board (PCB) layers, including one layer for the radiating 2 \u00d7 2 rectangular patch elements and two SIW PCB layers for the feeding network. There are two common methods for excitation in cavity-backed patch antennas: probe feeding (PF) and aperture coupling (AC). PF can be used to increase the bandwidth of the antenna. Although this method increases the antenna\u2019s bandwidth, it produces a strong cross-polarized field. The AC method can be used to suppress cross-polarized fields in microstrip patch antennas. As microstrip patch antennas are inherently narrowband, the AC method has little effect on their bandwidth. This paper proposes an antenna that is simultaneously fed by AC and PF. As a result of this innovation, the operating bandwidth of the antenna has increased, and cross-polarization has been reduced. Actually, the combination of probe feeding and aperture coupling schemes leads to achieving a broadband operating bandwidth. The arrangement of radiator elements and cavities implements a mirrored excitation technique while maintaining a low cross-polarization level. In both numerical and experimental solutions, a less than \u221230 dB cross-polarization level has been achieved for all of the main directions. A fractional impedance bandwidth of 29.8% (10.55\u201314.25 GHz) for S11 &lt; \u221210-dB is measured for the proposed array. Simulated and measured results illustrate good agreement. Having features like low cost, light weight, compactness, broadband, integration capabilities, and low cross-polarization level makes the designed antenna suitable for remote-sensing and satellite applications.<\/jats:p>","DOI":"10.3390\/s22093268","type":"journal-article","created":{"date-parts":[[2022,4,24]],"date-time":"2022-04-24T22:22:41Z","timestamp":1650838961000},"page":"3268","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":18,"title":["Developing Broadband Microstrip Patch Antennas Fed by SIW Feeding Network for Spatially Low Cross-Polarization Situation"],"prefix":"10.3390","volume":"22","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-6213-7956","authenticated-orcid":false,"given":"Farzad","family":"Karami","sequence":"first","affiliation":[{"name":"D\u00e9partement d\u2019Informatique et d\u2019Ing\u00e9nierie, Universit\u00e9 du Qu\u00e9bec en Outaouais, Gatineau, QC J8Y 3G5, Canada"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7439-8750","authenticated-orcid":false,"given":"Halim","family":"Boutayeb","sequence":"additional","affiliation":[{"name":"D\u00e9partement d\u2019Informatique et d\u2019Ing\u00e9nierie, Universit\u00e9 du Qu\u00e9bec en Outaouais, Gatineau, QC J8Y 3G5, Canada"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ali","family":"Amn-e-Elahi","sequence":"additional","affiliation":[{"name":"D\u00e9partement d\u2019Informatique et d\u2019Ing\u00e9nierie, Universit\u00e9 du Qu\u00e9bec en Outaouais, Gatineau, QC J8Y 3G5, Canada"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8603-1654","authenticated-orcid":false,"given":"Alireza","family":"Ghayekhloo","sequence":"additional","affiliation":[{"name":"D\u00e9partement d\u2019Informatique et d\u2019Ing\u00e9nierie, Universit\u00e9 du Qu\u00e9bec en Outaouais, Gatineau, QC J8Y 3G5, Canada"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Larbi","family":"Talbi","sequence":"additional","affiliation":[{"name":"D\u00e9partement d\u2019Informatique et d\u2019Ing\u00e9nierie, Universit\u00e9 du Qu\u00e9bec en Outaouais, Gatineau, QC J8Y 3G5, Canada"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2022,4,24]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"153443","DOI":"10.1016\/j.aeue.2020.153443","article-title":"Design and development of a singly-fed circularly polarized rectangular dielectric resonator antenna for WiMAX\/Satellite\/5G NR band applications","volume":"126","author":"Illahi","year":"2020","journal-title":"AEU-Int. 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