{"id":1575,"date":"2020-05-21T08:00:04","date_gmt":"2020-05-21T12:00:04","guid":{"rendered":"http:\/\/blog.pasternack.com\/?p=1575"},"modified":"2026-04-29T14:48:40","modified_gmt":"2026-04-29T18:48:40","slug":"how-are-end-launch-pcb-connectors-useful","status":"publish","type":"post","link":"\/blog\/rf-components\/how-are-end-launch-pcb-connectors-useful\/","title":{"rendered":"How are End-launch, PCB Connectors Useful?"},"content":{"rendered":"<p><img loading=\"lazy\" decoding=\"async\" class=\"alignright size-full wp-image-1579\" src=\"\/blog\/wp-content\/uploads\/2020\/05\/mmwave-removeable-end-launch.png\" alt=\"\" width=\"480\" height=\"361\" srcset=\"\/blog\/wp-content\/uploads\/2020\/05\/mmwave-removeable-end-launch.png 480w, \/blog\/wp-content\/uploads\/2020\/05\/mmwave-removeable-end-launch-213x160.png 213w, \/blog\/wp-content\/uploads\/2020\/05\/mmwave-removeable-end-launch-133x100.png 133w\" sizes=\"auto, (max-width: 480px) 100vw, 480px\" \/>There has been an increasing use of RF coaxial connectors, especially microwave and millimeter-wave coaxial connectors, for high-speed digital and precision sensing applications, There are also a growing trend toward highly compact and interconnect dense microwave and millimeter-wave systems, such as multi-input multi-output (MIMO) antennas for 5G and actively electronically scanned array (AESA) radar antennas. These new systems tend to require coaxial connectors to provide interconnection between PCBs with minimal loss and mechanical ruggedness.<\/p>\n<p>The complexity of these systems also requires equally complex testing. There are a variety of solderable coaxial interconnects for PCBs, as well as other interconnect strategies for PCBs including custom RF connector harnesses and coaxial pogo-pins. However, these methods typically require a custom housing or substantial rework if the interconnect is only needed for testing. Moreover, having permanent interconnect on some PCBs may significantly increase the cost, weight, and size of a PCB.<\/p>\n<p>In these cases, having removable, end-launch coaxial connectors can be extremely advantageous. Given that these applications often need operating into the microwave and millimeter-wave frequency, performance, reliability, and repeatability are all key considerations. Electrical performance factors, such as insertion loss and VSWR are also critical. This is especially true for signal integrity, coplanar waveguide, microchip testing, SERDES, microwave substrate characterization, test fixtures, and high speed digital applications, such as 25 GbE.<\/p>\n<p>The downstream impact of this work extends well beyond the test bench. Almost every consumer service that depends on low-latency, high-throughput delivery \u2014 cloud gaming, 4K live sports, financial trading platforms, and the live-dealer streams that <a href=\"https:\/\/nordicbridges.ca\/\">online casinos Canada<\/a> licenses provincially have made standard \u2014 ultimately rides on data center backbones built around 25 GbE and increasingly 100 GbE links. Every fraction of a dB of insertion loss at the PCB level has to be compensated for somewhere downstream, whether through retimers, shorter trace runs, or tighter thermal budgets, which is why repeatable, removable connectors matter well beyond prototype debugging.<\/p>\n<p>End-launch coaxial connectors are generally frequency limited based on the type of coaxial connector used in the design. Hence, there are reusable, end-launch connectors that offer broadband performance from DC to 110 GHz (1.0 mm coaxial connector), DC to 67 GHz (1.85 mm coaxial connector), DC to 50 GHz (2.4 mm coaxial connector), and DC to 40 GHz (2.92 mm coaxial connector). The size of an end-launch connector is also dependent on frequency, hence the higher frequency connectors are typically proportionally smaller than lower frequency connectors. However, the higher frequency connectors tend to offer lower power handling and greater insertion loss than the lower frequency connectors.<\/p>\n<p>Some of these reusable end-launch connectors allow for permanent soldering of the captive contact to the PCB if required. Though, they are designed to be attached and removed using a clamping mechanism with two screws with split-ring washers for a mechanical strong and reliable connection.<\/p>\n<p>Learn more about Pasternack\u2019s line of Removable End-launch PCB RF Connectors at the following link:<span style=\"color: #3366ff;\"> <a style=\"color: #3366ff;\" href=\"https:\/\/www.pasternack.com\/pages\/rf-microwave-and-millimeter-wave-products\/mmwave-removeable-end-launch-pcb-connectors.html\">https:\/\/www.pasternack.com\/pages\/rf-microwave-and-millimeter-wave-products\/mmwave-removeable-end-launch-pcb-connectors.html<\/a><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>There has been an increasing use of RF coaxial connectors, especially microwave and millimeter-wave coaxial connectors, for high-speed digital and precision sensing applications, There are also a growing trend toward highly compact and interconnect dense microwave and millimeter-wave systems, such as multi-input multi-output (MIMO) antennas for 5G and actively electronically scanned array (AESA) radar antennas. ..<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[318,70],"tags":[582,583,431],"class_list":["post-1575","post","type-post","status-publish","format-standard","hentry","category-coaxial-connectors","category-rf-components","tag-end-launch-connector","tag-pcb-connector","tag-rf-connector"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>How are End-launch, PCB Connectors Useful? - Pasternack Blog<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"\/blog\/rf-components\/how-are-end-launch-pcb-connectors-useful\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How are End-launch, PCB Connectors Useful? - Pasternack Blog\" \/>\n<meta property=\"og:description\" content=\"There has been an increasing use of RF coaxial connectors, especially microwave and millimeter-wave coaxial connectors, for high-speed digital and precision sensing applications, There are also a growing trend toward highly compact and interconnect dense microwave and millimeter-wave systems, such as multi-input multi-output (MIMO) antennas for 5G and actively electronically scanned array (AESA) radar antennas. 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