{"id":58560,"date":"2021-05-31T22:11:46","date_gmt":"2021-05-31T16:41:46","guid":{"rendered":"http:\/\/eie.eng.ruh.ac.lk\/dmena\/?post_type=dt_portfolio&#038;p=58560"},"modified":"2021-06-02T15:54:43","modified_gmt":"2021-06-02T10:24:43","slug":"study-on-different-feeding-techniques-of-textile-microstrip-patch-antenna","status":"publish","type":"dt_portfolio","link":"https:\/\/www.eng.ruh.ac.lk\/dmena\/project\/study-on-different-feeding-techniques-of-textile-microstrip-patch-antenna\/","title":{"rendered":"Study on Different Feeding Techniques of Textile Microstrip Patch Antenna"},"content":{"rendered":"<div class=\"wpb-content-wrapper\"><p>[vc_row equal_height=&#8221;yes&#8221; content_placement=&#8221;top&#8221; type=&#8221;vc_default&#8221; css=&#8221;.vc_custom_1584702595643{padding-bottom: 20px !important;}&#8221;][vc_column width=&#8221;1\/2&#8243; css=&#8221;.vc_custom_1572893353553{padding-bottom: 50px !important;}&#8221;]<div id=\"ultimate-heading-611669d7683986379\" class=\"uvc-heading ult-adjust-bottom-margin ultimate-heading-611669d7683986379 uvc-1127  uvc-heading-default-font-sizes\" data-hspacer=\"no_spacer\"  data-halign=\"left\" style=\"text-align:left\"><div class=\"uvc-heading-spacer no_spacer\" style=\"top\"><\/div><div class=\"uvc-main-heading ult-responsive\"  data-ultimate-target='.uvc-heading.ultimate-heading-611669d7683986379 h3'  data-responsive-json-new='{\"font-size\":\"\",\"line-height\":\"\"}' ><h3 style=\"font-weight:bold;margin-bottom:30px;\">Study on Different Feeding Techniques of Textile Microstrip Patch Antenna<\/h3><\/div><\/div>[vc_column_text css=&#8221;.vc_custom_1622478269331{margin-bottom: 30px !important;border-left-width: 3px !important;padding-left: 20px !important;border-left-color: rgba(0,0,0,0.1) !important;border-left-style: solid !important;}&#8221;]Jayathunga E.H. , De Silva D.S., Amunugama C.S.B.M.R.N.L.K., Helapita L. and Nagahawaththa T.H<\/p>\n<div id=\"gtx-trans\" style=\"position: absolute; left: -40px; top: -16.6px;\">\n<div class=\"gtx-trans-icon\"><\/div>\n<\/div>\n<p>[\/vc_column_text][vc_column_text]Microstrip patch antenna is a suitable candidate for wearable textile antenna as it is a flexible, planer and directional antenna. In this antenna, the radiating patch is placed on top of the dielectric substrate and the ground plane is placed on the other side of the substrate. There should be a feed line to the patch in order to transfer the power from the source to the antenna. Mainly, feeding techniques are categorized into contacting and non-contacting methods. In this study, three different contacting feeding techniques (line feed, inset feed and coaxial feed [4]) are considered to comparatively analyze their effect and towards the antenna performance by means of S11 parameter, bandwidth, return loss and Voltage Standing Wave Ratio (VSWR)<\/p>\n<p>Key Words: Bandwidth; Feeding Method; Microstrip Patch Antenna; S Parameters; Textile Antenna[\/vc_column_text][\/vc_column][vc_column width=&#8221;1\/2&#8243; css=&#8221;.vc_custom_1572893349347{padding-bottom: 50px !important;}&#8221;]<style type=\"text\/css\" data-type=\"the7_shortcodes-inline-css\">.shortcode-single-image-wrap.shortcode-single-image-18df302e34d176bac7fb6458b9961e32.enable-bg-rollover .rollover i,\n.shortcode-single-image-wrap.shortcode-single-image-18df302e34d176bac7fb6458b9961e32.enable-bg-rollover .rollover-video i {\n  background: -webkit-linear-gradient();\n  background: linear-gradient();\n}\n.shortcode-single-image-wrap.shortcode-single-image-18df302e34d176bac7fb6458b9961e32 .rollover-icon {\n  font-size: 32px;\n  color: #ffffff;\n  min-width: 44px;\n  min-height: 44px;\n  line-height: 44px;\n  border-radius: 100px;\n  border-style: solid;\n  border-width: 0px;\n}\n.dt-icon-bg-on.shortcode-single-image-wrap.shortcode-single-image-18df302e34d176bac7fb6458b9961e32 .rollover-icon {\n  background: rgba(255,255,255,0.3);\n  box-shadow: none;\n}\n<\/style>[\/vc_column][vc_column]<div id=\"ultimate-heading-422569d76839869ce\" class=\"uvc-heading ult-adjust-bottom-margin ultimate-heading-422569d76839869ce uvc-1469  uvc-heading-default-font-sizes\" data-hspacer=\"no_spacer\"  data-halign=\"center\" style=\"text-align:center\"><div class=\"uvc-heading-spacer no_spacer\" style=\"top\"><\/div><div class=\"uvc-main-heading ult-responsive\"  data-ultimate-target='.uvc-heading.ultimate-heading-422569d76839869ce h3'  data-responsive-json-new='{\"font-size\":\"\",\"line-height\":\"\"}' ><h3 style=\"--font-weight:theme;\">Overview<\/h3><\/div><\/div>[vc_column_text]Microstrip patch antennas are popular in present communication-field applications due to their thin, flexible and lightweight structure [3]. These antennas are used in applications like Global Positioning System (GPS) satellite, mobile phones, etc. When it comes to textile microstrip patch antenna, a textile material is used as the substrate of the antenna instead of conventional dielectric materials. Polyester (100%) fabric is used for this study and the most important parameter; dielectric constant was measured several times and an average value was taken for design calculation. In line feeding there is a feeding line and signal transmitted via that line. In inset feeding there are two conductor cuts behind both side of the feed line. In coaxial feeding, coaxial cable is connected to patch instead of feed line. Originality of this work is, comparison of three feedings on textile materials[\/vc_column_text][\/vc_column][\/vc_row][vc_row full_width=&#8221;stretch_row&#8221; bg_type=&#8221;image&#8221; bg_override=&#8221;ex-full&#8221; type=&#8221;vc_default&#8221; css=&#8221;.vc_custom_1572893362996{padding-bottom: 70px !important;}&#8221;][vc_column offset=&#8221;vc_col-lg-offset-0 vc_col-lg-12 vc_col-md-offset-0 vc_col-md-12&#8243;]<style type=\"text\/css\" data-type=\"the7_shortcodes-inline-css\">.gallery-carousel-shortcode.gallery-carousel-shortcode-id-1e8914a99ec4cee806504e45bec5f7c4 .owl-nav a {\n  width: 36px;\n  height: 36px;\n  border-radius: 500px;\n}\n.dt-arrow-border-on.gallery-carousel-shortcode.gallery-carousel-shortcode-id-1e8914a99ec4cee806504e45bec5f7c4 .owl-nav a:not(:hover):before {\n  border-width: 0px;\n}\n.dt-arrow-hover-border-on.gallery-carousel-shortcode.gallery-carousel-shortcode-id-1e8914a99ec4cee806504e45bec5f7c4 .owl-nav a:hover:after {\n  border-width: 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50%;\n  transform: translateX(calc(-50% + 0px));\n}\n@media all and (-ms-high-contrast: none) {\n  .gallery-carousel-shortcode.gallery-carousel-shortcode-id-1e8914a99ec4cee806504e45bec5f7c4 .owl-dots {\n    transform: translateX(-50%);\n    margin-left: 0px;\n  }\n}\n.gallery-carousel-shortcode.gallery-carousel-shortcode-id-1e8914a99ec4cee806504e45bec5f7c4 .owl-dot {\n  width: 10px;\n  height: 10px;\n  margin: 0 8px;\n}\n@media screen and (max-width: 778px) {\n  .gallery-carousel-shortcode.gallery-carousel-shortcode-id-1e8914a99ec4cee806504e45bec5f7c4.hide-arrows .owl-nav a {\n    display: none;\n  }\n}\n@media screen and (max-width: 778px) {\n  .gallery-carousel-shortcode.gallery-carousel-shortcode-id-1e8914a99ec4cee806504e45bec5f7c4.reposition-arrows .owl-nav .owl-prev {\n    top: 50%;\n    transform: translateY(calc(-50% + 0px));\n    left: 10px;\n  }\n  .gallery-carousel-shortcode.gallery-carousel-shortcode-id-1e8914a99ec4cee806504e45bec5f7c4.reposition-arrows .owl-nav .owl-next {\n    top: 50%;\n    transform: translateY(calc(-50% + 0px));\n    right: 10px;\n  }\n}\n@media screen and (max-width: 778px) and all and (-ms-high-contrast: none) {\n  .gallery-carousel-shortcode.gallery-carousel-shortcode-id-1e8914a99ec4cee806504e45bec5f7c4.reposition-arrows .owl-nav .owl-prev {\n    transform: translateY(-50%);\n    margin-top: 0px;\n  }\n}\n@media screen and (max-width: 778px) and all and (-ms-high-contrast: none) {\n  .gallery-carousel-shortcode.gallery-carousel-shortcode-id-1e8914a99ec4cee806504e45bec5f7c4.reposition-arrows .owl-nav .owl-next {\n    transform: translateY(-50%);\n    margin-top: 0px;\n  }\n}\n.gallery-carousel-shortcode.gallery-carousel-shortcode-id-1e8914a99ec4cee806504e45bec5f7c4 figure,\n.gallery-carousel-shortcode.gallery-carousel-shortcode-id-1e8914a99ec4cee806504e45bec5f7c4 .rollover,\n.gallery-carousel-shortcode.gallery-carousel-shortcode-id-1e8914a99ec4cee806504e45bec5f7c4 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css=&#8221;.vc_custom_1622478269331{margin-bottom: 30px !important;border-left-width: 3px !important;padding-left: 20px !important;border-left-color: rgba(0,0,0,0.1) !important;border-left-style: solid !important;}&#8221;]Jayathunga E.H. , De Silva D.S., Amunugama C.S.B.M.R.N.L.K., Helapita L. and Nagahawaththa T.H [\/vc_column_text][vc_column_text]Microstrip patch antenna is a suitable candidate for wearable textile antenna as it is a flexible, planer and directional antenna. In&hellip;<\/p>\n","protected":false},"author":13,"featured_media":58650,"comment_status":"closed","ping_status":"closed","template":"","dt_portfolio_category":[99,107,120],"dt_portfolio_tags":[],"_links":{"self":[{"href":"https:\/\/www.eng.ruh.ac.lk\/dmena\/wp-json\/wp\/v2\/dt_portfolio\/58560"}],"collection":[{"href":"https:\/\/www.eng.ruh.ac.lk\/dmena\/wp-json\/wp\/v2\/dt_portfolio"}],"about":[{"href":"https:\/\/www.eng.ruh.ac.lk\/dmena\/wp-json\/wp\/v2\/types\/dt_portfolio"}],"author":[{"embeddable":true,"href":"https:\/\/www.eng.ruh.ac.lk\/dmena\/wp-json\/wp\/v2\/users\/13"}],"replies":[{"embeddable":true,"href":"https:\/\/www.eng.ruh.ac.lk\/dmena\/wp-json\/wp\/v2\/comments?post=58560"}],"version-history":[{"count":2,"href":"https:\/\/www.eng.ruh.ac.lk\/dmena\/wp-json\/wp\/v2\/dt_portfolio\/58560\/revisions"}],"predecessor-version":[{"id":58651,"href":"https:\/\/www.eng.ruh.ac.lk\/dmena\/wp-json\/wp\/v2\/dt_portfolio\/58560\/revisions\/58651"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.eng.ruh.ac.lk\/dmena\/wp-json\/wp\/v2\/media\/58650"}],"wp:attachment":[{"href":"https:\/\/www.eng.ruh.ac.lk\/dmena\/wp-json\/wp\/v2\/media?parent=58560"}],"wp:term":[{"taxonomy":"dt_portfolio_category","embeddable":true,"href":"https:\/\/www.eng.ruh.ac.lk\/dmena\/wp-json\/wp\/v2\/dt_portfolio_category?post=58560"},{"taxonomy":"dt_portfolio_tags","embeddable":true,"href":"https:\/\/www.eng.ruh.ac.lk\/dmena\/wp-json\/wp\/v2\/dt_portfolio_tags?post=58560"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}