1.0Grupo Sprintpcbhttps://www.sprintpcbgroup.com/essprintpcbgrouphttps://www.sprintpcbgroup.com/es/author/sprintpcbgroup/rich600338<blockquote class="wp-embedded-content" data-secret="XF4GmuXreF"><a href="https://www.sprintpcbgroup.com/es/blogs/microwave-pcb-material-selection-misconceptions/">Several Misconceptions About Microwave Circuit Board Material Selection from an Engineer’s Perspective</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://www.sprintpcbgroup.com/es/blogs/microwave-pcb-material-selection-misconceptions/embed/#?secret=XF4GmuXreF" width="600" height="338" title="«Several Misconceptions About Microwave Circuit Board Material Selection from an Engineer’s Perspective» — SprintpcbGroup" data-secret="XF4GmuXreF" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script> /*! This file is auto-generated */ !function(d,l){"use strict";l.querySelector&&d.addEventListener&&"undefined"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!/[^a-zA-Z0-9]/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),o=l.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),c=new RegExp("^https?:$","i"),i=0;i<o.length;i++)o[i].style.display="none";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute("style"),"height"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):"link"===t.message&&(r=new URL(s.getAttribute("src")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener("message",d.wp.receiveEmbedMessage,!1),l.addEventListener("DOMContentLoaded",function(){for(var e,t,s=l.querySelectorAll("iframe.wp-embedded-content"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute("data-secret"))||(t=Math.random().toString(36).substring(2,12),e.src+="#?secret="+t,e.setAttribute("data-secret",t)),e.contentWindow.postMessage({message:"ready",secret:t},"*")},!1)))}(window,document); //# sourceURL=https://www.sprintpcbgroup.com/wp-includes/js/wp-embed.min.js </script>https://www.sprintpcbgroup.com/wp-content/uploads/2026/01/microwave-pcb-2.webp600400Many engineers fall into the trap of focusing too much on theoretical parameters when choosing microwave circuit boards. In reality, the key to high-frequency signal transmission often lies not in the dielectric material itself, but in the manufacturing process and design details. This article uses practical examples to illustrate that seemingly basic factors such as conductor surface flatness and trace topology have a far greater impact on signal integrity in the millimeter-wave band than dielectric loss. Instead of blindly pursuing special board materials, it's better to optimize the circuit layout first and achieve more stable performance with conventional materials. Suitable for...