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DTSTART:20220327T030000
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DTSTAMP:20220604T071237Z
UID:18984364-6A1D-444F-A7DB-69920D596635
DTSTART;TZID=Europe/Warsaw:20220601T100000
DTEND;TZID=Europe/Warsaw:20220601T110000
DESCRIPTION:Characteristic mode analysis (CMA) has gained considerable atte
 ntion within the antenna community in recent years. Its popularity is not 
 only confined to academic publications\, even the industry has begun to ad
 opt it to solve practical antenna problems\, as reflected by CMA being mar
 keted as an attractive feature in many major full-wave simulation software
 \, including CST\, Altair FEKO and Ansys HFSS. One major reason for its po
 pularity is that apart from a powerful tool to explain how an antenna work
 s\, it is also increasingly being developed for antenna design\, relying o
 n the physical insights it provides to achieve unconventional solutions.\n
 \nIn this talk\, I will focus on introducing some recent progress in apply
 ing CMA for designing innovative multiple-input multiple-output (MIMO) ant
 ennas for smartphones. Firstly\, I will describe the formidable challenge 
 of achieving well-performing MIMO smartphone antennas in low cellular band
 s. In particular\, the small electrical size of the conventional rectangul
 ar smartphone chassis offers only one resonant characteristic mode (CM) be
 low 1 GHz. Therefore\, it does not have the required electromagnetic degre
 es of freedom to realize uncorrelated multiport MIMO antennas. However\, m
 inor modifications of the chassis\, as well as proper consideration of exi
 sting components\, enable multiple CMs to be made resonant (e.g.\, those i
 llustrated in Figure 1). These additional modes can then be excited by app
 ropriate feeds to enhance bandwidth and/or to design two or even three ant
 enna ports. Finally\, I will show that smartphone antennas can also be mad
 e more robust against the influence of user by appropriate selection of th
 e resonant CMs.\n\nCo-sponsored by: ECTI Thailand\n\nSpeaker(s): Buon Kion
 g Lau\, \n\nVirtual: https://events.vtools.ieee.org/m/314707
LOCATION:Virtual: https://events.vtools.ieee.org/m/314707
ORGANIZER:krzysztof.nyka@pg.edu.pl
SEQUENCE:5
SUMMARY:Innovations in Smartphone MIMO Antenna Design Using Characteristic 
 Modes
URL;VALUE=URI:https://events.vtools.ieee.org/m/314707
X-ALT-DESC:Description: <br /><p>Characteristic mode analysis (CMA) has gai
 ned considerable attention within the antenna community in recent years. I
 ts popularity is not only confined to academic publications\, even the ind
 ustry has begun to adopt it to solve practical antenna problems\, as refle
 cted by CMA being marketed as an attractive feature in many major full-wav
 e simulation software\, including CST\, Altair FEKO and Ansys HFSS. One ma
 jor reason for its popularity is that apart from a powerful tool to explai
 n how an antenna works\, it is also increasingly being developed for anten
 na design\, relying on the physical insights it provides to achieve unconv
 entional solutions.</p>\n<p>In this talk\, I will focus on introducing som
 e recent progress in applying CMA for designing innovative multiple-input 
 multiple-output (MIMO) antennas for smartphones. Firstly\, I will describe
  the formidable challenge of achieving well-performing MIMO smartphone ant
 ennas in low cellular bands. In particular\, the small electrical size of 
 the conventional rectangular smartphone chassis offers only one resonant c
 haracteristic mode (CM) below 1 GHz. Therefore\, it does not have the requ
 ired electromagnetic degrees of freedom to realize uncorrelated multiport 
 MIMO antennas. However\, minor modifications of the chassis\, as well as p
 roper consideration of existing components\, enable multiple CMs to be mad
 e resonant (e.g.\, those illustrated in Figure 1). These additional modes 
 can then be excited by appropriate feeds to enhance bandwidth and/or to de
 sign two or even three antenna ports. Finally\, I will show that smartphon
 e antennas can also be made more robust against the influence of user by a
 ppropriate selection of the resonant CMs.</p>
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