{"id":171,"date":"2015-08-19T22:51:10","date_gmt":"2015-08-19T20:51:10","guid":{"rendered":"http:\/\/www.radio.feec.vutbr.cz\/GACR-13-38735S\/?p=171"},"modified":"2015-08-19T22:52:39","modified_gmt":"2015-08-19T20:52:39","slug":"mmw-antennas","status":"publish","type":"post","link":"https:\/\/www.radio.feec.vutbr.cz\/GACR-13-38735S\/mmw-antennas\/","title":{"rendered":"MMW antennas"},"content":{"rendered":"
\n
\n
\"0\"<\/div>\n<\/div>\n

<\/p>\n

\n

For the measurement of the intra-vehicle signal propagation in MMW band we utilized two different MMW antennas.<\/br><\/p>\n

Open-ended waveguide antenna<\/b><\/br><\/p>\n

It is a simple antenna represented by an open waveguide flange (WR-15), see Figure 1<\/a>. Its properties are depicted in Figure 2<\/a> and Figure 3<\/a>. The advantage of this antenna is simplicity, a good impedance matching, and relatively flat main lobe of the radiation pattern.<\/p>\n

\"\"<\/p>\n

\"\"<\/p>\n

\"\"<\/p>\n\n\n\n
\"\"<\/td>\n\"\"<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Slot antenna array<\/br><\/p>\n

For the measurement of the intra-vehicle signal propagation in frequency band 55\u201365 GHz, we have developed an antenna (Figure 4<\/a>) with a dipole-like radiation pattern. Compared with the open-ended waveguide antenna, this antenna could cover a larger number of reflected waves in the car compartment. The antennas consist of a group of three longitudinal slots placed in both broad walls of a substrate integrated waveguide (SIW). An SIW slot antenna is naturally a narrow-band structure; however, using different self-resonant frequencies of the slots in the group ensures operating in the desired frequency band. The parameters are summarized in Figure 5<\/a> and Figure 6<\/a>. For details please refer to [1]<\/a>.<\/p>\n

\"\"<\/p>\n

\"\"<\/p>\n

\"\"<\/p>\n

Related publications:<\/b><\/p>\n\n\n\n
[1]<\/td>\n\n
MIKUL\u00c1\u0160EK, T.; L\u00c1\u010c\u00cdK, J.; RAIDA, Z.<\/div>\n
SIW slot antennas utilized for 60- GHz channel characterization<\/div>\n
Microwave and Optical Technology Letters, 2015, vol. 57, no. 6, s. 1365-1370. ISSN: 1098-2760.<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":4,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_mi_skip_tracking":false},"categories":[8],"tags":[],"_links":{"self":[{"href":"https:\/\/www.radio.feec.vutbr.cz\/GACR-13-38735S\/wp-json\/wp\/v2\/posts\/171"}],"collection":[{"href":"https:\/\/www.radio.feec.vutbr.cz\/GACR-13-38735S\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.radio.feec.vutbr.cz\/GACR-13-38735S\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.radio.feec.vutbr.cz\/GACR-13-38735S\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.radio.feec.vutbr.cz\/GACR-13-38735S\/wp-json\/wp\/v2\/comments?post=171"}],"version-history":[{"count":0,"href":"https:\/\/www.radio.feec.vutbr.cz\/GACR-13-38735S\/wp-json\/wp\/v2\/posts\/171\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.radio.feec.vutbr.cz\/GACR-13-38735S\/wp-json\/wp\/v2\/media?parent=171"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.radio.feec.vutbr.cz\/GACR-13-38735S\/wp-json\/wp\/v2\/categories?post=171"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.radio.feec.vutbr.cz\/GACR-13-38735S\/wp-json\/wp\/v2\/tags?post=171"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}