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DESCRIPTION:International Seminar Series - Dept. of Engineering\, Universit
 y of Perugia\n\nProf. Kuo-Sheng Chin\n\nDept. of Electronics Engineering\,
  Chang Gung University\, Taiwan\n\nCo-sponsored by: University of Perugia\
 n\nSpeaker(s): Kuo-Sheng Chin \, \n\nAgenda: \nNew Insights into Millimete
 r-Wave Higher-Order Mode Array Antenna Design\n\nProf. Kuo-Sheng Chin\n\nD
 ept. of Electronics Engineering\, Chang Gung University\, Taiwan\n\nAbstra
 ct\n\nThis presentation explores innovative strategies for designing mm-Wa
 ve array antennas\, focusing on higher-order modes to overcome the challen
 ges of high feed-network complexity and transmission loss. As mm-Wave tech
 nology and large-scale array antenna design become crucial\, conventional 
 designs face significant parasitic effects and manufacturing costs. This p
 resentation introduces two design breakthroughs. The first is a 79 GHz hig
 h-gain\, low-sidelobe TM05-mode patch array antenna. By utilizing higher-o
 rder TM05 modes\, the gain of a single patch is significantly increased\, 
 thereby drastically reducing the number of array elements while maintainin
 g performance. This significantly simplifies the feeding network. The desi
 gn incorporates differential feeding to suppress cross-polarization and si
 delobe levels\, effectively aligning grating lobes with radiation nulls to
  achieve a measured gain of 18.2 dBi. The second focus is a circularly pol
 arized filtering array antenna fed by higher-order substrate integrated wa
 veguide cavities (SIWC). The research details the control of quasi-TE410 a
 nd quasi-TE330 modes within an SIWC to simultaneously excite a 2×2 patch 
 subarray without power splitters. By integrating a compact RW-SIW filterin
 g transition with sequential rotation feeding\, the design achieves high f
 requency selectivity and polarization purity. The resulting 4×4 array dem
 onstrates a 3-dB axial ratio bandwidth of 8.9% and a gain of 15.9 dBic. In
  conclusion\, the lecture demonstrates that mastering higher-order mode di
 stribution in patches and SIWC structures provides a powerful path toward 
 high-efficiency\, low-complexity antenna systems for future wireless appli
 cations.\n\nKuo-Sheng Chin received the B.S. degree in electrical engineer
 ing from the Chung Cheng Institute of Technology\, Taoyuan\, Taiwan\, in 1
 986\, the M.S.E.E. degree from Syracuse University\, Syracuse\, NY\, USA\,
  in 1993\, and the Ph.D. degree in communication engineering from National
  Chiao Tung University\, Hsinchu\, Taiwan\, in 2005. From 1986 to 2005\, h
 e was with the Chung Shan Institute of Science and Technology\, Taoyuan\, 
 as a Research Assistant\, becoming an Assistant Scientist\, and then an As
 sociate Scientist. He joined Chang Gung University\, Taoyuan\, as a Facult
 y Member\, in 2006\, where he is currently a Professor with the Department
  of Electronics Engineering. He was one of the recipients of the Best Pape
 r Award of the International Conference on Electromagnetic Near Field Char
 acterization and Imaging in 2009\, the Best Student Paper Award of the Int
 ernational Symposium on Next-Generation Electronics in 2014\, and the Best
  Student Paper Award of 2018 The 8th International Symposium on InfoComm &amp;
  Mechatronics Technology in Bio-Medical &amp; Healthcare Application. Dr. Chin
  received the Outstanding Teacher Award from Chang Gung University in 2014
  and 2021. He served as an Associate Editor for Microwave and Optical Tech
 nology Letters in 2019−2020.\n\nRoom: Aula Ferdinando Alessandri (2° pi
 ano)\, Bldg: Edificio della Presidenza\, Department of Engineering\, Unive
 rsity of Perugia\, Via G. Duranti\, 93\,\, Perugia\, Umbria\, Italy\, 0612
 5\, Virtual: https://events.vtools.ieee.org/m/559462
LOCATION:Room: Aula Ferdinando Alessandri (2° piano)\, Bldg: Edificio dell
 a Presidenza\, Department of Engineering\, University of Perugia\, Via G. 
 Duranti\, 93\,\, Perugia\, Umbria\, Italy\, 06125\, Virtual: https://event
 s.vtools.ieee.org/m/559462
ORGANIZER:cristiano.tomassoni@unipg.it
SEQUENCE:109
SUMMARY: New Insights into Millimeter-Wave Higher-Order Mode Array Antenna 
 Design
URL;VALUE=URI:https://events.vtools.ieee.org/m/559462
X-ALT-DESC:Description: &lt;br /&gt;&lt;p style=&quot;text-align: center\;&quot;&gt;&lt;span lang=&quot;E
 N-US&quot; style=&quot;font-size: 16.0pt\; mso-ansi-language: EN-US\;&quot;&gt;&lt;strong&gt;&lt;span
  lang=&quot;EN-US&quot; style=&quot;font-size: 20.0pt\; line-height: 107%\; mso-ansi-lang
 uage: EN-US\;&quot;&gt;International Seminar Series - Dept. of Engineering\, Unive
 rsity of Perugia&lt;/span&gt;&lt;/strong&gt;&lt;/span&gt;&lt;/p&gt;\n&lt;p class=&quot;MsoNormal&quot; style=&quot;m
 argin-bottom: 3.0pt\; text-align: center\; line-height: normal\;&quot; align=&quot;c
 enter&quot;&gt;&lt;span lang=&quot;EN-US&quot; style=&quot;font-size: 16.0pt\; mso-ansi-language: EN
 -US\;&quot;&gt;Prof. Kuo-Sheng Chin&lt;/span&gt;&lt;/p&gt;\n&lt;p class=&quot;MsoNormal&quot; style=&quot;text-a
 lign: center\;&quot; align=&quot;center&quot;&gt;&lt;span lang=&quot;EN-US&quot; style=&quot;mso-ansi-language
 : EN-US\;&quot;&gt;Dept. of Electronics Engineering\, Chang Gung University\, Taiw
 an&lt;/span&gt;&lt;/p&gt;\n&lt;p&gt;&amp;nbsp\;&lt;/p&gt;\n&lt;p&gt;&amp;nbsp\;&lt;/p&gt;&lt;br /&gt;&lt;br /&gt;Agenda: &lt;br /&gt;&lt;p 
 class=&quot;MsoNormal&quot; style=&quot;text-align: center\;&quot; align=&quot;center&quot;&gt;&lt;strong&gt;&lt;spa
 n lang=&quot;EN-US&quot; style=&quot;font-size: 20.0pt\; line-height: 107%\; mso-ansi-lan
 guage: EN-US\;&quot;&gt;New Insights into Millimeter-Wave Higher-Order Mode Array 
 Antenna Design&lt;/span&gt;&lt;/strong&gt;&lt;/p&gt;\n&lt;p class=&quot;MsoNormal&quot; style=&quot;margin-bot
 tom: 3.0pt\; text-align: center\; line-height: normal\;&quot; align=&quot;center&quot;&gt;&lt;s
 pan lang=&quot;EN-US&quot; style=&quot;font-size: 16.0pt\; mso-ansi-language: EN-US\;&quot;&gt;Pr
 of. Kuo-Sheng Chin&lt;/span&gt;&lt;/p&gt;\n&lt;p class=&quot;MsoNormal&quot; style=&quot;text-align: cen
 ter\;&quot; align=&quot;center&quot;&gt;&lt;span lang=&quot;EN-US&quot; style=&quot;mso-ansi-language: EN-US\;
 &quot;&gt;Dept. of Electronics Engineering\, Chang Gung University\, Taiwan&lt;/span&gt;
 &lt;/p&gt;\n&lt;p class=&quot;MsoNormal&quot; style=&quot;margin-bottom: 0cm\;&quot;&gt;&lt;strong&gt;&lt;span lang
 =&quot;EN-US&quot; style=&quot;font-size: 14.0pt\; line-height: 107%\; mso-ansi-language:
  EN-US\;&quot;&gt;Abstract&lt;/span&gt;&lt;/strong&gt;&lt;/p&gt;\n&lt;p class=&quot;MsoNormal&quot; style=&quot;text-a
 lign: justify\; text-justify: inter-ideograph\;&quot;&gt;&lt;span lang=&quot;EN-US&quot; style=
 &quot;mso-ansi-language: EN-US\;&quot;&gt;This presentation explores innovative strateg
 ies for designing mm-Wave array antennas\, focusing on higher-order modes 
 to overcome the challenges of high feed-network complexity and transmissio
 n loss. As mm-Wave technology and large-scale array antenna design become 
 crucial\, conventional designs face significant parasitic effects and manu
 facturing costs. This presentation introduces two design breakthroughs. Th
 e first is a 79 GHz high-gain\, low-sidelobe TM&lt;sub&gt;05&lt;/sub&gt;-mode patch ar
 ray antenna. By utilizing higher-order TM&lt;sub&gt;05&lt;/sub&gt; modes\, the gain of
  a single patch is significantly increased\, thereby drastically reducing 
 the number of array elements while maintaining performance. This significa
 ntly simplifies the feeding network. The design incorporates differential 
 feeding to suppress cross-polarization and sidelobe levels\, effectively a
 ligning grating lobes with radiation nulls to achieve a measured gain of 1
 8.2 dBi. The second focus is a circularly polarized filtering array antenn
 a fed by higher-order substrate integrated waveguide cavities (SIWC). The 
 research details the control of quasi-TE&lt;sub&gt;410&lt;/sub&gt; and quasi-TE&lt;sub&gt;33
 0&lt;/sub&gt; modes within an SIWC to simultaneously excite a 2&amp;times\;2 patch s
 ubarray without power splitters. By integrating a compact RW-SIW filtering
  transition with sequential rotation feeding\, the design achieves high fr
 equency selectivity and polarization purity. The resulting 4&amp;times\;4 arra
 y demonstrates a 3-dB axial ratio bandwidth of 8.9% and a gain of 15.9 dBi
 c. In conclusion\, the lecture demonstrates that mastering higher-order mo
 de distribution in patches and SIWC structures provides a powerful path to
 ward high-efficiency\, low-complexity antenna systems for future wireless 
 applications.&lt;/span&gt;&lt;/p&gt;\n&lt;p class=&quot;MsoNormal&quot; style=&quot;text-align: justify\
 ; text-justify: inter-ideograph\;&quot;&gt;&amp;nbsp\;&lt;/p&gt;\n&lt;p class=&quot;MsoNormal&quot; style
 =&quot;text-align: justify\; text-justify: inter-ideograph\;&quot;&gt;&amp;nbsp\;&lt;/p&gt;\n&lt;p c
 lass=&quot;MsoNormal&quot; style=&quot;text-align: justify\; text-justify: inter-ideograp
 h\;&quot;&gt;&lt;strong&gt;&lt;span lang=&quot;EN-US&quot; style=&quot;mso-ansi-language: EN-US\;&quot;&gt;Kuo-She
 ng Chin&lt;/span&gt;&lt;/strong&gt;&lt;span lang=&quot;EN-US&quot; style=&quot;mso-ansi-language: EN-US\
 ;&quot;&gt; received the B.S. degree in electrical engineering from the Chung Chen
 g Institute of Technology\, Taoyuan\, Taiwan\, in 1986\, the M.S.E.E. degr
 ee from Syracuse University\, Syracuse\, NY\, USA\, in 1993\, and the Ph.D
 . degree in communication engineering from National Chiao Tung University\
 , Hsinchu\, Taiwan\, in 2005. From 1986 to 2005\, he was with the Chung Sh
 an Institute of Science and Technology\, Taoyuan\, as a Research Assistant
 \, becoming an Assistant Scientist\, and then an Associate Scientist. He j
 oined Chang Gung University\, Taoyuan\, as a Faculty Member\, in 2006\, wh
 ere he is currently a Professor with the Department of Electronics Enginee
 ring. He was one of the recipients of the Best Paper Award of the Internat
 ional Conference on Electromagnetic Near Field Characterization and Imagin
 g in 2009\, the Best Student Paper Award of the International Symposium on
  Next-Generation Electronics in 2014\, and the Best Student Paper Award of
  2018 The 8th International Symposium on InfoComm &amp;amp\; Mechatronics Tech
 nology in Bio-Medical &amp;amp\; Healthcare Application. Dr. Chin received the
  Outstanding Teacher Award from Chang Gung University in 2014 and 2021. He
  served as an Associate Editor for Microwave and Optical Technology Letter
 s in 2019&amp;minus\;2020.&lt;/span&gt;&lt;/p&gt;\n&lt;p class=&quot;MsoNormal&quot; style=&quot;text-align:
  justify\; text-justify: inter-ideograph\;&quot;&gt;&lt;span lang=&quot;EN-US&quot; style=&quot;mso-
 ansi-language: EN-US\;&quot;&gt;&amp;nbsp\;&lt;/span&gt;&lt;strong&gt;&lt;span lang=&quot;EN-US&quot; style=&quot;ms
 o-ansi-language: EN-US\;&quot;&gt;&lt;span style=&quot;mso-spacerun: yes\;&quot;&gt; &lt;/span&gt;&lt;/span
 &gt;&lt;/strong&gt;&lt;/p&gt;
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