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8/18/2019 Technical Seminar PptA
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8/18/2019 Technical Seminar PptA
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“WIRELESS CHARGING OFMOBILE PHONE USING
MICROWAVE”
Guide name:
Asso. Prof. Ahmeduddin Zaker
Student Name:
Mohammed Yaheeya Ahmed10081A043!"!#A$ %& year
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Battery Low
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Contents
Introduction
Transmitter design
Receiver design
Rectification antenna
Schottky diode
Sensor circuitry
Advantages and Disadvantages
Future scope
Conclusion
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%ntrodu'tion The mobile can be charged at any time, anyhere!
"obile can be charged #ust by making a call!
The microaves are used to charge the mobile phones!
"obile phones becoming basic part of life
Recharging of mobile phones is a big problem
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WHATS HAPPENING!
"icroave signal is transmitted from transmitter along
ith message signal using slotted aveguide antenna at
fre)uency *!+ -./
Charging made universal
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Mi'ro)a*e re+ion of e,e'troma+neti's-e'trum
The light travels ith the speed of 01234 km5sec 6e choose s 7band of microave region8*9+-./:
;lectromagnetic aves are made up of to parts
2! ;lectric field
*! "agnetic field
These to fields are at
right angles to each other
Designation Frequency range
L Band 1 to 2 GHz
S Band 2 to 4 GHz
C Band 4 to 8 GHz
X Band 8 to 12 GHz
Ku Band 12 to 18 GHz
K Band 18 to 26 GHz
Ka Band 26 to 4 GHz
! Band " to # GHz
$ Band 4 to 6 GHz
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M%"/A&! !G%/N
6avelength ( 2 mm903 cm
"icroave can be used for(
2! "easuring body temperature
*! Transmitting information
0! Remote sensing
+! RADAR
! Communication
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FRE"UENC# SELECTION
Select license free *!+ -./ %ndustria&' Scienti(ic and
)edica& *IS": radio bands
IS" bands are reserved internationally for non9commercial
use of RF electromagnetic fields for industrial, scientific
and medical purpose
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ransmitter 2esi+n
Ma+netron is hi+h -o)er mi'ro)a*e os'i,,ator.
"agnetron is a vacuum tube oscillator that generates high9
poer electromagnetic signals in the microave fre)uency range
!'ien'y of this hi+h -o)er os'i,,ator ,ies et)een
506 and 806.
"rossed e,e'tron and ma+neti' 7e,ds are used.
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Se,f 'ontained mi'ro)a*e os'i,,atorma+netron9
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he Ma+netron
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e'ei*er desi+n
An additiona, feature to the moi,e is
!"!NNA
S!NS/
!"!NNA
e'ti7'ation Antenna
ransmittin+station )ith the
mi'ro)a*etransmitter
sensor
e'tenna
'a,e
'ir'u,ator
)a*e+uide
S,otted )a*e+uideAntenna
moi,e si+na,
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ro'ess of e'ti7'ation
"om-rises of a di-o,es and diodesS'hottky diode9.
;sua,,y its e,ements are arran+ed in the mesh -attern.
2ire't,y 'on*erts the mi'ro)a*e si+na, into 2" -o)er.
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'hottky diodeA S'hottky arrier diode ## ma
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ensor 'ir'uitryThe sensor circuitry is a simple circuit, hich detects if the mobile phone
receives any message signal! In India the operating fre)uency of the mobile phone operators is generally
=33"./ or 2>33"./ for the -S" system for mobile communication!
A simple yet poerful F to < converter is ?"*=3@!
$n the reception of the microave signal ,the sensor circuitry directs rectenna
circuit to $'
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d*anta+es
6ireless energy transfer can potentially recharge the mobile phones ithout
chords!
$nly one microave transmitter can serve to all the service providers in that area!
The need of different types of chargers by different manufacturers is totally
eliminated!Charging mobiles irelessly
Saving time for charging
6astage of poer is less
etter than itricity
-et charged as e make call during long #ourney
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isad*anta+es
The transmitter and receiver also should be very poerful devices as the distanceincreases!
6ireless transmission of the energy causes some drastic effects to human body,
because of its radiation!
Charging depends on netork coverage
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@uture s'o-e
he )ire,ess 'har+in+ 'an e*en e done usin+ the data
e'han+e as no) on,y its on,y een im-,emented for
*oi'e 'a,,s.
ith the ad*ent of nanote'hno,o+y and M!MS the siBe of
these re'tennas 'an e rou+ht do)n to mo,e'u,ar ,e*e,.
%t has een theoriBed that simi,ar de*i'es$ s'a,ed do)n to
the -ro-ortions used in nanote'hno,o+y$ 'ou,d e used to
'on*ert ,i+ht into e,e'tri'ity at mu'h +reater e'ien'ies
than )hat is 'urrent,y -ossi,e )ith so,ar 'e,,s. his ty-e
of de*i'e is 'a,,ed an o-ti'a, re'tenna.
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"on',usion
A no*e, method of usin+ the -o)er of the mi'ro)a*e
to 'har+e the moi,e -hones )ithout the use of
)ired 'har+ers.
his method -ro*ides +reat ad*anta+e to the moi,e-hone users to 'arry their -hones any)here e*en if
the -,a'e is de*oid of fa'i,ities for 'har+in+.
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eferen'e1. ae#han yoo and Cai "han+$ Dheoreti'a, and!-erimenta, 2e*e,o-ment of 10 and 35 GEB re'tennasF
%!!! ransa'tion on Mi'ro)a*e heory and e'hniues$
*o,. 40. No.=. Hune. 1I.
I. 5 Ea)kins$ Hoe$ et a,$ D ire,ess S-a'e Po)er
!-eriment$F in -ro'eedin+s of the th
summer"onferen'e of NASAJ;SA Ad*an'ed 2esi+n Pro+ram and
Ad*an'ed S-a'e 2esi+n Pro+ram$ Hune 14#18$ 13.
3. M Med,ey Hr and M Med,ey$ KMi'ro)a*e and @
'ir'uits: ana,ysis$ synthesis and desi+nL$ Arte'h Eouse$
Nor)ood$ MA$ 13.
4. @a,one$ &in'ent H.$ DAtmos-heri' Attenuation of
Mi'ro)a*e Po)er$F Hourna, of mi'ro)a*e Po)er$ 549$
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BatteryF$%%
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+ny !ueries,,--
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