parallel plate waveguides using hfss

8/15/2019 Parallel Plate Waveguides Using Hfss

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PROJECT REPORT

“IMPLEMENTATION OF PARALLEL PLATE WAVEGUIDES USING HFSS SOFTWARE”

BY

M.Prasanth Reddy 14BEC1126

M.Sai Prathap Reddy 14BEC119

T.!a"si #rishna 14BEC11$9

!.Sandeep Ch%&dary 14BEC111

A report submitted to the

SCHOOL OF ELECTRONICS ENGINEERING

in partial fulfillment of the requirements for the project of the courseof

ECE202 – TRANSMISSION LINES AND FIELDS

in

B.Tech. ELECTRONICS AND COMMUNICATION ENGINEERING

VIT UNIVERSITY, CHENNAI

Va!a"#$ – %e"a&'a((a& R)a!

Chea* – +00 2-

A$*" 20+

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BONAFIDE CERTIFICATE

Certi'ied that this pr%(e)t rep%rt entit*ed /IMPLEMETAION OF PARALLEL PLATE

WAVEGUIDES USING HFSS SOFTWARE is a +%na'ide &%r, %' P$a1haRe!!34BEC506- Va&7* %$*7ha34BEC856- Sa!ee Ch)9!a$34BEC06, P$a7a1h

Re!!34BEC2+6 &h% )arried %t the Pr%(e)t &%r, nder "y sper/isi%n and 0idan)e.

P$):. Ra;* P$a(a7h D9*;e!*

ss%)iate Pr%'ess%r

S)h%%* %' E*e)tr%ni)s En0ineerin0 SE3SE

!5T ni/ersity- Chennai

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AC%NOWLEDGEMENT

7e &ish t% e8press %r sin)ere than,s and deep sense %' 0ratitde t% %r pr%(e)t 0ide-

P$):. Ra;* P$a(a7h D9*;e!*, ss%)iate Pr%'ess%r- S)h%%* %' E*e)tr%ni)s En0ineerin0 - '%r

his )%nsistent en)%ra0e"ent and /a*a+*e 0idan)e %''ered t% s in a p*easant "anner thr%0h%t

the )%rse %' the pr%(e)t &%r,.

7e are e8tre"e*y 0rate'* t% D$. S.R.S P$a'aha$a, ean %' the S)h%%* %' E*e)tr%ni)s

En0ineerin0- !5T ni/ersity- '%r e8tendin0 the 'a)i*ities %' the S)h%%* t%&ards %r pr%(e)t and '%r

her nstintin0 spp%rt.

7e e8press %r than,s t% %r Pr%0ra" Chair D$. R. Ma)


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CONTENTS

. A'71$ac1

2. I1$)!#c1*)=. P$*c*"e ): Oe$a1*)

4. Pa$a""e" "a1e 9a;e>#*!e

?. I&"e&e1a1*) ): a$a""e" "a1e 9a;e>#*!e7 #7*> HFSS

*6 C$ea1e a ')@

**6 B)#!a$ c)!*1*)7

***6 Wa;e )$1

*;6 S)"#1*) F$e#ec Se1#

;6 De"1a S 7e11*>

;*6 F$e#ec S9ee

;**6P")11*> :*e"! $e7#"17

36 E"ec1$*c :*e"! &a>*1#!e326 E"ec1$*c :*e"! ;ec1)$

3=6 Ma>e1*c :*e"! &a>*1#!e

346 Ma>e1*c :*e"! ;ec1)$

;***6 G$ah*ca" $e7#"17

36 P$)a>a1*) c)71a1 V7 F$e#ec ")1 32D6

326 P$)a>a1*) c)71a1 V7 F$e#ec ")1 3=D6

+. C#1):: F$e#ec

-. C)c"#7*)

8. Re:e$ece7

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ABSTRACT

The para**e* &a/e0ide )hara)teristi)s and 'ie*d distri+ti%n '%r di''erent "%des in an %pen ended

para**e* &a/e0ide &hen the &a/e0ide is in the 'ree spa)e is )%"pted sin0 ;


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5n the 0e%"etry %' the para**e* p*ate &a/e0ide %'


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DERIVATION

Transverse electrc 3TE6 mo!es > the e*e)tri) 'ie*d is trans/erse t% the

dire)ti%n %' pr%pa0ati%n n% *%n0itdina* e*e)tri) 'ie*d )%"p%nent &hi*e the "a0neti) 'ie*d has +%th

trans/erse and *%n0itdina* )%"p%nents D E ? - H z F G.

TE and TM "%des are )%""%n*y re'erred t% as waveuide modes sin)e they are the %n*y "%des

&hi)h )an e8ist in an en)*%sed 0idin0 str)tre. TE and TM "%des are )hara)teri?ed +y a cutoff

frequenc! +e*%& &hi)h they d% n%t pr%pa0ate. TE and TM "%des )an e8ist %n trans"issi%n *ines

+t are 0enera**y ndesira+*e. Trans"issi%n *ines are typi)a**y %perated at 're=en)ies +e*%& the

)t%'' 're=en)ies %' TE and TM "%des s% that %n*y the TEM "%de e8ists.

The trans/erse 'ie*ds %' TE "%des are '%nd +y si"p*i'yin0 the 0enera*

0ided &a/e e=ati%ns &ith E z . The res*tin0 trans/erse 'ie*ds '%r TE "%des are

The )t%'' &a/en"+er " c "st +e n%n>?er% t% yie*d +%nded s%*ti%ns '%r the trans/erse 'ie*d

)%"p%nents %' TE "%des. This "eans that &e "st %perate the 0idin0 str)tre a+%/e the

)%rresp%ndin0 )t%'' 're=en)y '%r the parti)*ar TE "%de t% pr%pa0ate. 3%te that a** %' the

trans/erse 'ie*d )%"p%nents %' the TE "%des )an +e deter"ined %n)e the sin0*e *%n0itdina*

)%"p%nent H z is '%nd. The *%n0itdina* 'ie*d )%"p%nent

H z "st satis'y the &a/e e=ati%n s% that

H


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IMPLEMENTATION IN HFSS

. C$ea1e a ')@

B)@ D*&e7*)7

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2. B)#!a$ C)!*1*)7

FINITE CONDUCTIVITY

The 'inite )%nd)ti/ity +%ndary is se'* &hen "%de*in0 "eta* str)tres that are

/ery thin +t sti** thi),er than a s,in depth. This +%ndary )an there'%re +e sed t% "%de* si0na*

tra)es- 0r%nd p*anes- %r a radiatin0 e*e"ent. 5t a*s% a**%&s a ser t% spe)i'y the sr'a)e r%0hness

%' the )%nd)tin0 %+(e)t that it is app*ied t%. This +%ndary is app*ied t% a sheet %+(e)t that &i**

represent the : )%nd)t%r +t has +een dra&n as a 2 %+(e)t.

5n ;


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The 'inite )%nd)ti/ity +%ndary )%nditi%n is /a*id %n*y i' the )%nd)t%r +ein0 "%de*ed is a 0%%d

)%nd)t%rA that is- i' the )%nd)t%rs thi),ness is ")h *ar0er than the s,in depth in the 0i/en

're=en)y ran0e. 5' the )%nd)t%rs thi),ness is %n the %rder %' %r *ess than the s,in depth in the

0i/en 're=en)y ran0e- ;para"eters that are pr%d)ed +y a &a/e p%rt are 0enera*i?ed and )an +e /ie&ed as S>

para"eters that se the 're=en)y>dependent )hara)teristi) &a/e i"pedan)e %' the p%rt as their

n%r"a*i?ati%n )%nstant.

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4. S)"#1*) F$e#ec Se11*>

SOLUTION SETUP

The s%*ti%n 're=en)y is sed +y ;S /a*e. The /a*e %' e*ta>S is the )han0e in the "a0nitde %' the S>para"eters +et&een

t&% )%nse)ti/e passes. Or- in e*e)tri) 'ie*d ter"s- the )han0e in the e*e)tri) 'ie*d distri+ti%n +et&een s))essi/e s%*ti%ns. On)e the "a0nitde and phases %' a** S> para"eters )han0e +y *ess

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than the ser>spe)i'ied e*ta>S /a*e- the ana*ysis st%ps and is )%nsidered )%n/er0ed. Or )%n/erse*y-

a0ain in e*e)tri) 'ie*d ter"s- %n)e the e*e)tri) 'ie*ds are n% *%n0er )han0in0 in the 0i/en "%de*- the

'ie*d s%*ti%n has )%n/er0ed and is )%rre)t.

?. F$e#ec 79ee

FREUENCY SWEEP

;?er% trans'er 'n)ti%n- and it is the 0enerati%n %' this 'n)ti%n that re=ires the "a(%rity %' the

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s%*ti%n ti"e. On)e the “trans'er” 'n)ti%n has +een 0enerated- S>para"eter data is rapid*y

)a*)*ated.

PLOTTING FIELD RESULTS

. ELECTRIC FIELD MAGNITUDE

2. ELECTRIC FIELD VECTOR

1:


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GRAPHICAL RESULTS

. PROPAGATION CONSTANT ;7 FREUENCY

1. 1. 2. 2. :. :. 4. 4. . .


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CONCLUSION

para**e*- Cir)*ar- e**ipti)a* and h%**%&- Meta**i) &a/e0ides spp%rts %n*y TE and TM"%des +t TEM &a/es d%nt e8ist in a sin0*e>)%nd)t%r h%**%& &a/e 0ide +e)ase TEM &a/es

are )hara)teri?ed +y E?- ;? and '). T% spp%rt a** TEM "%des '%r a TEM &a/e t&%

separate )%nd)t%r str)tre is re=ired- s)h as C%>a8ia* )a+*e- Para**e* p*ate &a/e0ide- Strip *ine

and "i)r% strip *ines. The t&% )%nd)t%r *ines )an +e ana*y?ed in ter"s %' /%*ta0e- )rrent and

i"pedan)e +y the distri+ted )ir)it the%ry. The "eth%d%*%0y app*ied t% deri/e 'ie*d e=ati%ns )an

+e e8tended t% %ther &a/e0ides a*s%. O+tained e=ati%ns and C%"pter Si"*ati%n res*ts )an +e

)%"pared t% nderstand the 'ie*d *ines and the Pr%pa0ati%n )hara)teristi)s.

REFERENCES

1. 3.Mar)/it? “Wa;e>#*!e Ha!'))( The institti%n %' E*e)tri)a* En0ineers. e)>19$

2. a/id.#.Chen0 /F*e"! a! Wa;e E"ec1$)&a>e1*c7 2nd Ed- 26 Tsin0ha ni/ersity

:. nnaprna as-Ssir # as /M*c$)9a;e E>*ee$*> / M)>Nra&hi** ;E- Sept 26.

4. C%nstantine Ba*anis /A!;ace! E>*ee$*> E"ec1$)&a>e1*c7J%hn 7i*ey and S%ns

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parallel plate waveguides using hfss

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