RF Circuit Design Test 2

RF Circuit Design Test 2 - EE 4002-2 Test 1 55N= Fall 2006...

Info iconThis preview shows pages 1–9. Sign up to view the full content.

View Full Document Right Arrow Icon
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Background image of page 2
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Background image of page 4
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Background image of page 6
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Background image of page 8
Background image of page 9
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: EE 4002-2 Test # 1 55N= Fall 2006 1. Design a transmission line (TL) length so that the following circuit has a 2/0 purely real input impedance at 950 MHz. Assume vp = 0.69c. What is the / reflection coefficient at the load 11, and at input to the TL Fin? What is the standing wave ratio, and insertion loss (in dB) at the input of the TL? ‘ i 6* ' ac1Jmc= 339"" l K: : Zc: "$.79 2 2.." Z_JL 4.257,: ‘56.. 2 +0ii.27 27—1?- ZS" zk;o.5‘ r12 a l i??? 2L: awe-13 ’ 4 vm“Wuwwnwwwewwaumymm‘mmmwmme.mmmqmmm-wm [NAME TITLE owe. NO. DATE SMITH CHART FORM ZY—m-N COLOR BY J. COLVlN, UNIVERSITY OF FLORIDA, I199? ‘\ ‘ NORMAUZED EMPEDANCE AND ADM” IANCE COORDINATES 0.12 11.13 0.“ 0.14 M Y mg 0.38 90 0.37 “a a 15 A ‘00 80 0 Qua B ‘ 35 0,6, “1‘- \\° 5 g 3 ; g N >9 7a 034 “$1 s -. c: 4,? w on .5 2- v * 5 so 43: '1 ‘31 1“" 3 0 95‘ u; $163“ . 30 ~11: B55 1, $1 0 02 3- 0e? a“ as“ ob \ .5- 5 Q fie .o 0 A?» 0; Q o w k 06‘ ‘1 7,1 0 <9 ‘* Y‘ 'J W PS J $9 1 0 4 0 “$3 \‘9 % \qp‘ 1: in 2-? St, 5- 1 29 é a N 0&5" 0 '5 § 0 a c. . §s§ § %%¢ " [v n“ \ Q! '” é”) e 33 0 v k 6' .I a a g 4‘ T 9 V a 1:, w 5'0 & s a. 5 ‘5 05 1?.” (7' 3" ° ’ 1° '-‘ $9 35 0 a” 10 g °° Q P i ,9 SF 5 5 90 2; a: w to O E 1 Va g g E: a I" '0 91 o a .5 a 5' 5? an E, n E ° 1: a: b “T -p 3 21; ‘é—Eai ? ” 5" .o —: 1‘s . :1 . «=2 . a; a; 1:. oz . . no. ._ =.. ~. 0' z a a 3 a a c a a a .1. a .- m a a. m ‘- - 27‘ p a z 9- . 1v .— . . :- .== 1: n 8 3 3 e a a 1: 01 O‘Ln'l I r RBISTANCECO ONENT Zo, RCON UCTANCECOMPO (/Yo a 5:51 v n a . 0.2 53' m o .e a 3g. x . gr: '5 1a a ‘ 0 g . 5:. 1:: a? V -a> ‘0 a xi‘.‘ ~0 0 1: an ‘3 3 z “I J}. m . . ' oe- 21'0 1:111 an L2'0 RADIALLYSCALEDPARAMETERS TOWARD LOAD ~> <— TOWARD GENERATOR 1.1 1.2 1.1 1 15 10 1 5 4 3 2 1 (-141RHH'H“L”HA-H.‘1'l.'.‘..'n-1-1-H'x;.lu'1 ‘1‘1‘2 ‘1‘1'r1'v‘1’a'151'r‘1‘ux‘«1’ .1 * 3 2 1 .1 1.2 1.3 .4 Ls 1.3 3 10 20 an ‘ ‘ <9 20 30—0 0.1 0.2 0.1 0.6 0.8 1 1.5 2 :1 1 5 11 10 15» fig? 9 .h—r1..'...'r.1fi Hm. 1‘.'.'.':u'—+—I.u 11w; . . «a 11.01 00 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.81.9 2 2.5 3 1 5 10m ‘7 fig; . 0.1 01 0.99 0.95 0,11 0,8 0.7 0.6 0,5 0.4 0.3 0.2 0.1 0 0° ..,....._._4 ...v_....._.. .4 .1L__._...1..L....._. . CENTER 6" 0 0.1 0,2 0.3 0.1 0.5 0.6 0.7 0.11 0.9 1 1.1 1.2 1.3 1.1 1.5 1.6 1.1 1.3 1.9 2 4‘} i.._4_,..1..1..v_._..x.,1.;;_....,._._J,4....,..4_._.U1..11..HH4“....H.LUL.._,_J_,.....H-_._._,.1H.H_._L_..U ORIGIN 2. In order to increase powergain in a wireless transmitter, we wish to cascade two transistor amplifier circuits. We would like to create DC isolation, maintain wide bandwidth, and of course achieve maximum power transfer. Design a matching network that will accomplish all of these things, at minimal “cost”. (Cost simply means fewest components.) l i A ’0 22;: 2r¥cso ZOUT1=6O~j16 ; /,2_ away. , 7, l Zm=100—j35 "- 2 ’7”? '7 2c: mice 7 in“, § ‘ L—ifi? , c: d ‘ l . t FL, an zcca'o) EREWLN jaw?) i)? H I Aka; err F050 / /.(9./.3= 1/2.) ® 3Q.” erFL. WM 0 so I a /’ L: sOCIXL £Mw " aw W‘ # 217$ A If,» ['0 \ l I N, 601% w lijvé —l~‘ flew], 9’ ‘ ‘ , ,V l, 37— i l ‘fl\ ‘ i . K v? \ l/ a: «0 2 _ 3w ‘ A .1 - j _ I 29/: \ ’ “Wimmwmnmmmwmm , mm. 7 7". n r RAmMJY scams PARAMETERS 0.?» ' ohmz 1,2 I :4 «.65 0:1' 3 galaxy 'ua‘ uz 1 0.4 3 0.5 '01s 10 20 :18 L19 0.8 0.1 V 9.9 i Name: Class: Purpose Question: » .. \ \fiAéfi. a. Am... w 0.. I..m 0.. J I. o 5 2 4 n . I. 3 . é... o n. 4.. M: m 3 A .Z r W 3.. m n. 1 T z. 2 :9, 5.1 1 x... m u 1..6. u w l L:5. . a. 1 u. . H m. M, . D L u m 2 .A . ,x W U mu. 1 m J. L Q I my. lugs : 0.4 H_o.a _ 02‘ a; V n: V0.7 1.7 . .1'6 A 10.3 DJ ()1! > X“? fiaéii‘é’a mam wéfi’? Qm 5mg £33; fiagfimfi fisiw 3. Create the best possible matching network for a load impedance @ ZL =126—— j39 using a 9M8 TL segment and a stub line with a length of 0.14A. (assume characteristic impedance of 50 Q) 4:— 93/9 -~—-> . 22.59 '1). 0378 @ g k is 3 mafia: + 7‘5 a, 0.12; )c/V,,,__,‘f\\ .r o /4 =-.o?§:—J—-— (CSAftrfM o q 3‘ M: T‘— Kx‘ d’ ' dz“. 1“, (50) (D 2mm if agosx M»? ,3 Z _ V‘ ‘ 'l’ f :— 0_Q.‘ ‘OJ °*5:?:.,.,,.\,, “4“” “~" ~ 30?} CZW :4g-JNS— 2. l0 . V... = 4. If the phase velocity of a TL 0.69c, what is the relative permittivity of the dielectric assuming it is nonmagnetic? Upfix $m.:nL~— = £; 2 C Hiram. V67 5. We need a parallel plate TL (assume lossless) with a characteristic C8) impedance of 50 Q. Eindiher/h ratio using a dielectric with 2. = 2.1. What is Seff fffotthisIliw/h ratio? Va}; / 7- / J . Ha ‘ 2 '- 20 g, > 5:7 fr 2. I}; 2 —2I :: :: /‘ 8 ,MWW.WMWWWWWWwe NAME TITLE DWG. NC). DATE SMITH CHART FORM ZY—01 -N COLOR BY J. COLWNl UNIVERSli OF- FLORIDA: 1997 V NORMALIZED iMPEDANCé AND DWOORDINATES ‘ 0 u 0.121 0.1"; D M \ . IE . 0‘ ' 4/0379 M 90 ' 7 0‘35 ’11: \ 70 a m =2 e .3 ‘3 9:. =3 ' T a f a f a, \‘x , o a. V ~; \ ,1 0'9 q.“ :- ” - e go of: \ 1, ’14“ “ ‘9 ~ a «fig ~. ’5“ odd) \ . <9 ’6 '? Q; \ 43$ ‘ " g6 ,1 a "‘0 x o $1 1‘ 1 “‘36 a \ ($9 ‘4 1 a (9 \ 0Y2? . a \ x 4 Q: \ ’0 o x. n 6 la - , a \ B / 0- '5 1 /’ '09 \ ,1 3, we a I x 0 fix \ 0 a :1, , .. o. . <1 ‘34 . z . '° ‘ 9 z“ '2 11/ ,’ .9. \D ’f’ z‘ 0 . 5 a so , “a ‘21 5 ; o E O h F‘ ’0 ’ 0% o . "1 a a , ’ . .,. ’ 0 CI. ‘1 M a $ 3 i @“Cl 4 . . . . L. w. -. m. . 1 . . =9 . c? w o 2 .— 1; , g a o o a c 4, u .4 \4 er. 4— N ‘0 z n r: g ‘ 5 ' ~ 1» ' 5v .— . . 1 . . n 0 fl 3 +| ’ a as ’ O m 71 RESISTA ECOMPONENT xz ORCONDUCTAN OMPONENT o .1: 3! g - . g 9 ¢ .. a g :57. 0 ~ 2 a: 2 U 41 b In a If: D «a {a ., QR -0 0 3’ 3’ E Q! If?" 06‘ are E. 1 _ ' 1100 RADlALLYSCALEDPARAMETERs TOWARD LOAD —> <— TOWARD GENERATOR , L6 1.4 1.21.11 15 10 7 5 4 3 2 1 A. A. 1 .'—.—'~. ‘1'1‘1' "'1‘1"~1—J~r‘-+.'.‘..'..‘1‘1+H—HJ' 1'1'.'1.'.'.'.—+.J‘.'..‘.+ 4 3 z 1 11 1.1 1.2 1.314 1.6 1.8 2 3 4 5 10 20 10 12 14 20 30.:0 0.1 0.2 0.4 0.6 0.31 1.5 2 3 4 5 5 , ‘5:.’va—+—-¢—-‘.*%"1 NU“ Mani—H: a.:..m1.h—.—1—H1‘1‘.‘+H‘.'1—w—:Lr-l+a—+IrwHM. 1‘» 1 0.9 00 0.7 0.6 0,5 0.4 0.3 0.2 0.1 0.05 0.01 00 1,1 1.2 1.2 1.4 15 1.6 17 LB 1.9 2 2.5 3 4 °‘/ I . 0.11 0.7 0.0 0.5 0.4 0.3 0,2 0.1 01 0.99 0.05 0.9 0.3 0.7 0.5 0.5 04 0. 0.2 0.1 ...,.“HHHHHH..1_L_..1.U...,.._,.1....11H.._.T »..1,1_L_..,. . ._L.....J_1.1., CENTER 0 0.1 0.2 0.3 0.4 0.5 0.0 0.1 0.8 09 1 1.1 1.2 1.3 1.4 15 1.6 1.7 1.8 13 in”....1.....,,1.4_1,...,1“.41.... “HM-Wu..111...1,L1....1_..__1__..11...1,,..1_1_..,1.H, ORIGIN 6. Find the resistance and inductance of a copper wire at 4 GHz. The wire is 15 cm long and has a diameter of 1 mm. JO a. Find the characteristic impedance of a M4 transformer to match a 50 Q microstrip line to a transistor with an input impedance of 13.5 (2. 2AM 5.. 2c .41 b. Find theilléfigthandazi/ijthinf this parallel plate M4 transformer. Assume the dielectric we use is nonmagnetic, has thickness of 2 mm, and er = 2.6, and f0 = 900 MHz. ' cl. “” 7 ll c. What would be the benefit of using a material with a higher dielectric constant er? (29)“? a ‘l‘ Ma may: {am 20 : ZGJL % 2 i geld. amicaé’L ‘1) flux climate? frugal/er I Mmmmwm.w.wmwww W hQ/VOLJ. g 2, 8. Find the component values for a Iow—GHz range biasing network for a BJT inverting amplifier shown below. Design for class AB operation. V55: 5V, V35: 0.7 V, B =1QO, [c = 10 mA. Draw the AC equivalent circuit and estimate the small signal gain. ...
View Full Document

  • Spring '06
  • Scalzo
  • Impedance matching, Standing wave ratio, Impedance bridging, Characteristic impedance, chart form, real input impedance

{[ snackBarMessage ]}

Page1 / 9

RF Circuit Design Test 2 - EE 4002-2 Test 1 55N= Fall 2006...

This preview shows document pages 1 - 9. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online