{"id":464,"date":"2024-01-29T12:18:32","date_gmt":"2024-01-29T10:18:32","guid":{"rendered":"https:\/\/webs.uab.cat\/waveslab\/?page_id=464"},"modified":"2024-01-29T13:11:27","modified_gmt":"2024-01-29T11:11:27","slug":"antenna-testing-2","status":"publish","type":"page","link":"https:\/\/webs.uab.cat\/waveslab\/facilities-and-services\/antenna-testing-2\/","title":{"rendered":"Anechoic Chamber"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">Spherical near\/far field antenna measurement system.<\/h2>\n\n\n\n<p>The shielded chamber prevents external interferences while the inner surfaces are covered by RF absorbers offering a working environment as close as possible to free space. External dimensions are 5 m x 3 m x 3m (length x width x height). The operating frequency range is 0.6 to 25.6 GHz.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/webs.uab.cat\/waveslab\/wp-content\/uploads\/sites\/450\/2023\/07\/Camara_2-1024x768.png\" alt=\"\" class=\"wp-image-190\" srcset=\"https:\/\/webs.uab.cat\/waveslab\/wp-content\/uploads\/sites\/450\/2023\/07\/Camara_2-1024x768.png 1024w, https:\/\/webs.uab.cat\/waveslab\/wp-content\/uploads\/sites\/450\/2023\/07\/Camara_2-300x225.png 300w, https:\/\/webs.uab.cat\/waveslab\/wp-content\/uploads\/sites\/450\/2023\/07\/Camara_2-768x576.png 768w, https:\/\/webs.uab.cat\/waveslab\/wp-content\/uploads\/sites\/450\/2023\/07\/Camara_2-1536x1152.png 1536w, https:\/\/webs.uab.cat\/waveslab\/wp-content\/uploads\/sites\/450\/2023\/07\/Camara_2-1200x900.png 1200w, https:\/\/webs.uab.cat\/waveslab\/wp-content\/uploads\/sites\/450\/2023\/07\/Camara_2.png 1606w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>The roll-over-azimuth positioning system for the antenna under test (AUT) can be moved along a floor slide to adjust the AUT to  probe distance between 2.5 and 3 m. The positioning precision of the AUT roll and azimuth axes is of the order of 0.1\u00ba and 0.07\u00ba, respectively. The dynamic range of the measurements is around 60 dB in the operating band.<\/p>\n\n\n\n<p>The system performs antenna measurements in near and far field. If required, near to far field transformation can be carried out through a software based on the expansion of spherical modes. This algorithm includes probe compensation (pattern and polarization).<\/p>\n\n\n\n<p>The measurement setup also provides a flexible environment  suitable to assess the performance of different devices and systems: RCS and radome testing, EMC preliminary testing&#8230; <\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/webs.uab.cat\/waveslab\/wp-content\/uploads\/sites\/450\/2023\/07\/Screen-Shot-2023-07-14-at-09.36.01.png\" alt=\"\" class=\"wp-image-186\" width=\"386\" height=\"311\" srcset=\"https:\/\/webs.uab.cat\/waveslab\/wp-content\/uploads\/sites\/450\/2023\/07\/Screen-Shot-2023-07-14-at-09.36.01.png 844w, https:\/\/webs.uab.cat\/waveslab\/wp-content\/uploads\/sites\/450\/2023\/07\/Screen-Shot-2023-07-14-at-09.36.01-300x242.png 300w, https:\/\/webs.uab.cat\/waveslab\/wp-content\/uploads\/sites\/450\/2023\/07\/Screen-Shot-2023-07-14-at-09.36.01-768x621.png 768w\" sizes=\"auto, (max-width: 386px) 100vw, 386px\" \/><\/figure>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Spherical near\/far field antenna measurement system. The shielded chamber prevents external interferences while the inner surfaces are covered by RF absorbers offering a working environment as close as possible to free space. External dimensions are 5 m x 3 m x 3m (length x width x height). The operating frequency range is 0.6 to 25.6 [&hellip;]<\/p>\n","protected":false},"author":2851,"featured_media":0,"parent":62,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-464","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/webs.uab.cat\/waveslab\/wp-json\/wp\/v2\/pages\/464","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/webs.uab.cat\/waveslab\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/webs.uab.cat\/waveslab\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/webs.uab.cat\/waveslab\/wp-json\/wp\/v2\/users\/2851"}],"replies":[{"embeddable":true,"href":"https:\/\/webs.uab.cat\/waveslab\/wp-json\/wp\/v2\/comments?post=464"}],"version-history":[{"count":7,"href":"https:\/\/webs.uab.cat\/waveslab\/wp-json\/wp\/v2\/pages\/464\/revisions"}],"predecessor-version":[{"id":474,"href":"https:\/\/webs.uab.cat\/waveslab\/wp-json\/wp\/v2\/pages\/464\/revisions\/474"}],"up":[{"embeddable":true,"href":"https:\/\/webs.uab.cat\/waveslab\/wp-json\/wp\/v2\/pages\/62"}],"wp:attachment":[{"href":"https:\/\/webs.uab.cat\/waveslab\/wp-json\/wp\/v2\/media?parent=464"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}