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Considering that RF coils require both local transmission and reception at UHF, the designs of double\u2010tuned coils, which often consist of several layers of transmit and receive resonant elements, become quite complex. A few years ago, a new type of RF coil, ie a dipole antenna, was developed and used for human body and head imaging at UHF. Due to the mechanical and electrical simplicity of dipole antennas, combining an X\u2010nucleus surface loop array with <jats:sup>1<\/jats:sup>H dipoles can substantially simplify the design of a double\u2010tuned UHF human head array coil. Recently, we developed a novel bent folded\u2010end dipole transceiver array for human head imaging at 9.4\u2009T. The new eight\u2010element dipole array demonstrated full brain coverage, and transmit efficiency comparable to that of the substantially more complex 16\u2010element surface loop array. In this work, we developed, constructed and evaluated a double\u2010tuned <jats:sup>13<\/jats:sup>C\/<jats:sup>1<\/jats:sup>H human head 9.4\u2009T array consisting of eight <jats:sup>13<\/jats:sup>C transceiver surface loops and eight <jats:sup>1<\/jats:sup>H transceiver bent folded\u2010end dipole antennas all placed in a single layer. We showed that interaction between loops and dipoles can be minimized by placing four <jats:sup>1<\/jats:sup>H traps into each <jats:sup>13<\/jats:sup>C loop. The presented double\u2010tuned RF array coil substantially simplifies the design as compared with the common double\u2010tuned surface loop arrays. At the same time, the coil demonstrated an improved <jats:sup>1<\/jats:sup>H longitudinal coverage and good transmit efficiency.<\/jats:p>","DOI":"10.1002\/nbm.4577","type":"journal-article","created":{"date-parts":[[2021,6,24]],"date-time":"2021-06-24T23:26:13Z","timestamp":1624577173000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":16,"title":["9.4\u2009T double\u2010tuned <sup>13<\/sup>C\/<sup>1<\/sup>H human head array using a combination of surface loops and dipole antennas"],"prefix":"10.1002","volume":"34","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-7608-0869","authenticated-orcid":false,"given":"Nikolai I.","family":"Avdievich","sequence":"first","affiliation":[{"name":"High\u2010Field MR Center Max Planck Institute for Biological Cybernetics  T\u00fcbingen Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Georgiy","family":"Solomakha","sequence":"additional","affiliation":[{"name":"Department of Physics and Engineering ITMO University  St. Petersburg Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Loreen","family":"Ruhm","sequence":"additional","affiliation":[{"name":"High\u2010Field MR Center Max Planck Institute for Biological Cybernetics  T\u00fcbingen Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Anke","family":"Henning","sequence":"additional","affiliation":[{"name":"High\u2010Field MR Center Max Planck Institute for Biological Cybernetics  T\u00fcbingen Germany"},{"name":"Advanced Imaging Research Center University of Texas Southwestern Medical Center  Dallas Texas"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Klaus","family":"Scheffler","sequence":"additional","affiliation":[{"name":"High\u2010Field MR Center Max Planck Institute for Biological Cybernetics  T\u00fcbingen Germany"},{"name":"Department for Biomedical Magnetic Resonance University of T\u00fcbingen  T\u00fcbingen Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2021,6,24]]},"reference":[{"key":"e_1_2_9_2_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00723-011-0280-y"},{"key":"e_1_2_9_3_1","doi-asserted-by":"publisher","DOI":"10.1002\/mrm.24192"},{"key":"e_1_2_9_4_1","doi-asserted-by":"publisher","DOI":"10.1002\/mrm.24432"},{"key":"e_1_2_9_5_1","doi-asserted-by":"publisher","DOI":"10.1002\/mrm.25666"},{"key":"e_1_2_9_6_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.neuroimage.2015.08.066"},{"key":"e_1_2_9_7_1","doi-asserted-by":"publisher","DOI":"10.1002\/mrm.27953"},{"key":"e_1_2_9_8_1","doi-asserted-by":"publisher","DOI":"10.1016\/0022-2364(85)90380-4"},{"key":"e_1_2_9_9_1","doi-asserted-by":"publisher","DOI":"10.1016\/0022-2364(90)90026-6"},{"key":"e_1_2_9_10_1","doi-asserted-by":"publisher","DOI":"10.1016\/0022-2364(90)90160-B"},{"key":"e_1_2_9_11_1","doi-asserted-by":"publisher","DOI":"10.1002\/mrm.1910300116"},{"key":"e_1_2_9_12_1","doi-asserted-by":"publisher","DOI":"10.1002\/mrm.28176"},{"key":"e_1_2_9_13_1","doi-asserted-by":"publisher","DOI":"10.1002\/mrm.22028"},{"key":"e_1_2_9_14_1","doi-asserted-by":"publisher","DOI":"10.1002\/cmr.b.21268"},{"key":"e_1_2_9_15_1","doi-asserted-by":"publisher","DOI":"10.1002\/mrm.26803"},{"key":"e_1_2_9_16_1","doi-asserted-by":"publisher","DOI":"10.1002\/mrm.22413"},{"key":"e_1_2_9_17_1","doi-asserted-by":"publisher","DOI":"10.1002\/mrm.23124"},{"key":"e_1_2_9_18_1","doi-asserted-by":"publisher","DOI":"10.1002\/mrm.24726"},{"key":"e_1_2_9_19_1","doi-asserted-by":"publisher","DOI":"10.1007\/s10334-013-0419-y"},{"key":"e_1_2_9_20_1","doi-asserted-by":"publisher","DOI":"10.1002\/nbm.3964"},{"key":"e_1_2_9_21_1","doi-asserted-by":"publisher","DOI":"10.1002\/mrm.26754"},{"key":"e_1_2_9_22_1","doi-asserted-by":"publisher","DOI":"10.1002\/mrm.22886"},{"key":"e_1_2_9_23_1","doi-asserted-by":"publisher","DOI":"10.1002\/mrm.25840"},{"key":"e_1_2_9_24_1","doi-asserted-by":"publisher","DOI":"10.1002\/mrm.25596"},{"key":"e_1_2_9_25_1","doi-asserted-by":"publisher","DOI":"10.1002\/mrm.27485"},{"key":"e_1_2_9_26_1","unstructured":"ChenG CloosM SodicksonD WigginsG.A 7T 8 channel transmit\u2010receive dipole array for head imaging: dipole element and coil evaluation. 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