Technical Seminar PptA

8/18/2019 Technical Seminar PptA

1/26


2/26

“WIRELESS CHARGING OFMOBILE PHONE USING

MICROWAVE”

Guide name:

Asso. Prof. Ahmeduddin Zaker

Student Name:

Mohammed Yaheeya Ahmed10081A043!"!#A$ %& year


3/26

Battery Low


4/26

Contents

Introduction

Transmitter design

Receiver design

Rectification antenna

Schottky diode

Sensor circuitry

Advantages and Disadvantages

Future scope

Conclusion


5/26

%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


6/26


7/26(

WHATS HAPPENING!

"icroave signal is transmitted from transmitter along

ith message signal using slotted aveguide antenna at

fre)uency *!+ -./

Charging made universal


8/26

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


9/26

M%"/A&! !G%/N

6avelength ( 2 mm903 cm

"icroave can be used for(

2! "easuring body temperature

*! Transmitting information

0! Remote sensing

+! RADAR

! Communication


10/26

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


11/26

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.


12/26

Se,f 'ontained mi'ro)a*e os'i,,atorma+netron9


13/26

he Ma+netron


14/26

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,


15/26

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.


16/26

'hottky diodeA S'hottky arrier diode ## ma


17/26

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 $'


18/26

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


19/26

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


20/26

@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.


21/26

"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+.


22/26

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$


23/26

BatteryF$%%


24/26


25/26

+ny !ueries,,--


26/26

Documents

Technical Seminar PptA