Microwave Engineering (ÃʰíÁ֯İøÇÐ)

 

1. °øÁö»çÇ×

¤· Grading: Ãâ¼® 15% (°úÁ¦Á¦Ãâ·Î È®ÀÎ), °úÁ¦ 15%, Áß°£½ÃÇè 35%, ±â¸»½ÃÇè 35%

¤· Textbook:

- ¿ø¼­: D. M. Pozar, Microwave Engineering, 4th Ed., Wiley, 2015.

- ¹ø¿ª¼­: ¸¶ÀÌÅ©·ÎÆÄ°øÇÐ (D. M. Pozar Àú), °íÁöȯ ¿ª, ÇÑÆ¼¿¡µà, 2020.

¤· °úÁ¦¿ë Çлý°íÀ¯¹øÈ£ PIN: Çб³¿¡ µî·ÏµÈ ÀÚ½ÅÀÇ À̵¿ÀüÈ­ ³¡ 4ÀÚ¸®. ´Ü °¢ ¼ýÀÚ°¡ 0ÀÎ °æ¿ì ¼øÂ÷ÀûÀ¸·Î 1, 2, 3, 4·Î ´ëü. ¿¹½Ã: 4321 ¡æ 4321, 4010 ¡æ 4112

¤· °úÁ¦ Á¦Ãâ: eCampus¿¡ ¾÷·Îµå. ´ÙÀ½ ÁÖ ¼ö¾÷ÀÏ 23:59±îÁö. ¼ö±â´ä¾È ÃÔ¿µÇÏ¿© ¾÷·Îµå

¤· ½Ç½À°á°ú Á¦Ãâ: eCampus¿¡ ¾÷·Îµå. ´ë¸éÇлý=¼ö¾÷½Ã°£ ³», ºñ´ë¸éÇлý=´ÙÀ½ ÁÖ ¼ö¾÷ÀÏ 23:59±îÁö. ¼Ò½ºÄÚµå¿Í ÄÚµå½ÇÇà °á°ú¸¦ MS¿öµå¹®¼­(*.doc, *.docx)·Î ¸¸µé¾î ¾÷·Îµå

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1±×·ì(1-4ÁÖ): À̱â*(2Çгâ), °­±æ* to ¹ÚÀç* (3Çгâ 20¸í)

2±×·ì(5,6,7,9ÁÖ): ¹è¿µ* to Àü´Ù* (3Çгâ 20¸í)

3±×·ì(10-13ÁÖ): * Bin, Á¤Âù* to ȲÁö* (3Çгâ), 4Çг⠱谡*, ±èÅÂ*, ¹Ú°æ*, ¼Õ¿¹*, ¾ç¿ì*, À±Á¤*, À̰æ*, ÀÌ»ó*, ÀÌÇý* (21¸í)

¤· °­Àǰü·Ã ¹®ÀÇ»çÇ×: ´ã´ç±³¼ö bician@cbu.ac.kr (E10-611)

       ½Ç½ÀÁ¶±³ ¸ð³×ºñ aydjmonebitee@gmail.com (E10-519) (2ÁÖ-15ÁÖ), ÇãÁö¿ø ÇãÁö¿ø gjwldnjs131@naver.com (E10-519) (1ÁÖ)

       äÁ¡Á¶±³ ÃÖ°æ¹Î ckm45@naver.com

 

2. ÁÖº° °­ÀÇ

Week-01(3/4): Transmission Lines 1

ÀÌ·Ð: °­ÀÇ(pdf, pptx-no-voice, pptx-voice, mp4)

½Ç½À: °­ÀÇÀÚ·á(pdf, htm), À½¼º°­ÀÇ(ÆÄÀ̽ã»ç¿ë¹ý&½Ç½À3¹ø, ½Ç½À1¹ø&2¹ø, ½Ç½À4¹ø)

½Ç½À: ¹®Á¦(pdf, htm)

(Homework 01)

1. Express the characteristic impedance Z0 of a transmission line in terms of R, L, G, and C. 

2. Express the complex propagation constant ¥ã of a transmission line in terms of R, L, G, and C.

3. Express Z0 and ¥ã of a lossless transmission line in terms of L and C.

4. Write down a Python program and execute it to find the characteristic impedance Z0 and the complex propagation constant ¥ã of a transmission line with   R = 176 m¥Ø/m, L = 490 nH/m, G = 2 ¥ìS/m, C = 49 pF/m. Accept the frequency f while the code runs as an input data of your choice.

 

Week-02(3/11): Transmission Lines 2

ÀÌ·Ð: °­ÀÇ(pdf, pptx-no-voce, pptx-voice, mp4)

½Ç½À: °­ÀÇÀÚ·á(pdf, htm), À½¼º°­ÀÇ(mp4)

½Ç½À: ¹®Á¦(pdf, htm)

(Âü°í) °úÁ¦¹®Á¦ Ç®¶§ ÇÊ¿äÇÏ¸é ´ÙÀ½ÀÇ º¹¼Ò¼ö °è»ê±â »ç¿ë

º¹¼Ò¼ö °è»ê±â: Á÷°¢ÁÂÇ¥/±ØÁÂÇ¥ Çü½Ä º¯È¯, °ö¼À, »¬¼À

       Python: complex_calc_1_python.txt

       Fortran: complex_calc_1.f90, complex_calc_1.exe

(Homework 02)

PIN=pqrs, a = p+q+r+s, b = 3*a

Coaxial cable with a(given above), b(given above), ¥ìr = 1, ¥år = 2, tan¥ä = 0.001, ¥ò = 5.8e7 S/m, f = 5.8 GHz

Calculate Z0, ¥ã, R, L, G, C, ¥ác (dB/m), ¥ád (dB/m), ¥á (dB/m), ¥ëg.

(Âü°í) ´ÙÀ½ °ø½Ä »ç¿ë

 

Week-03(3/18): Transmission Lines 3

ÀÌ·Ð: °­ÀÇ(pdf, pptx-no-voice, pptx-voice, mp4)

½Ç½À: °­ÀÇÀÚ·á(pdf, htm), À½¼º°­ÀÇ(mp4)

½Ç½À: ¹®Á¦(pdf, htm)

(Homework 03)

Visit http://mcalc.sourceforge.net/ to analyze a microstrip line.

´ÙÀ½°ú °°ÀÌ ¼³Á¤

    ´ÜÀ§¸¦ mm ¼³Á¤

    Er = 4.3, Rho =1

    H = 1, Rough = 0.0

    Tmet = 0.035, Tan¥ä = 0.02

 

Keff´Â ¥åre (À¯È¿ À¯Àü»ó¼ö)

¼±·ÎÆÄÀå:

   

Elec. Len. (degrees) = ¼±·ÎÀÇ Àü±âÀû ±æÀ̸¦ °¢µµ·Î Ç¥Çö. 1ÆÄÀåÀº 360¡Æ¿¡ ´ëÀÀµÈ´Ù.

 

(¹®Á¦)

W = 2mm, Frequency = 1500MHz ÀÎ °æ¿ì Z0, Keff, L (1ÆÄÀåÀÇ ±æÀÌ)¸¦ ±¸Ç϶ó. ÀÌ °æ¿ì Loss (dB)¸¦ ±¸Ç϶ó.

 

Week-04(3/25): Smith Chart

ÀÌ·Ð: °­ÀÇ (pdf, pptx-no-voice, pptx-voice, mp4)

½Ç½À: °­ÀÇÀÚ·á(pdf, htm), À½¼º°­ÀÇ(mp4)

½Ç½À: ¹®Á¦(pdf, htm)

Âü°í: Smith-z-chart, Smith-y-chart, Smith-zy-chart

(Homework 04)

PIN=abcd (PIN=3194, a=3, b=1, c=9, d=4)

1. Draw a r = a circle on a Smith chart.

2. Draw a x = d circle on a Smith chart.

 

Wee-05(4/1): Impedance Matching 1

ÀÌ·Ð: °­ÀÇ (pdf, pptx-no-voice, pptx-voice, mp4)

½Ç½À: °­ÀÇÀÚ·á(pdf, htm), À½¼º°­ÀÇ(mp4)

½Ç½À: ¹®Á¦(pdf, htm)

(Homework 05) PIN=abcd (exmple: PIN=3194, a=3, b=1, c=9, d=4)

Vs = 10a ¡¿ exp(j20¡Æ)

Zs = 10b + j 10c (ohm) : connected in series with Vs

ZL = 30a − j 40d (ohm) : connected in series with Zs

1. Find the power PL (W) at ZL

2. Modify ZL for maximum power transfer.

3. Find the power PL (W) at ZL when ZL is modified for the maximum power transfer.

 

Week-06(4/8): Impedance Matching 2

ÀÌ·Ð: °­ÀÇ (pdf, pptx-no-voice, pptx-voice, mp4)

½Ç½À: °­ÀÇÀÚ·á(pdf, htm), À½¼º°­ÀÇ(mp4)

½Ç½À: ¹®Á¦(pdf, htm)

(Âü°í) LC matching: Python souce code (python-general LC matching.doc)

(Homework 06) PIN=abcd (exmple: PIN=3194, a=3, b=1, c=9, d=4)

1. Find all the possible element values of LC-matching networks that transforms 10a+j40b ¥Ø to 50 ¥Ø. Use the Python code given above.

 

Week-07(4/15): Passive RLC Components 1 - Resistors

ÀÌ·Ð: °­ÀÇ (pdf, pptx-no-voice, pptx-voice, mp4) (À½¼º°­ÀÇÀÚ·á´Â ÀÛ¾÷ÁßÀÌ¸ç ±ÝÀÏÁß ¾÷·ÎµåµË´Ï´Ù.)

½Ç½À: °­ÀÇÀÚ·á(pdf, htm), À½¼º°­ÀÇ(mp4)

½Ç½À: ¹®Á¦(pdf, htm)

(Homework 07) PIN=abcd (exmple: PIN=3194, a=3, b=1, c=9, d=4)

1. Resistor equivalent circuit

Equivalent circuit of the inductor, where R, L, and C refer to resistance, inductance, and capacitance, respectively.

1) Find an expression for the impedance.

2) f = a MHz, R = 100b (ohm), L = b nH, C= 2d pF. Calculate the impedance.

 

 

Week-08(4/22): Mid-term Exam. (prob, sol): ´ä¾ÈÀº eCampus 8ÁÖÂ÷ °úÁ¦¶õ¿¡ Á¦Ãâ

Áß°£°í»ç: ¹®Á¦(pdf, htm)

 

Week-09(4/29): Passive RLC Components 2 - Capacitors

ÀÌ·Ð: °­ÀÇ (pdf, pptx-no-voice, pptx-voice, mp4)

½Ç½À: °­ÀÇÀÚ·á(pdf, htm), À½¼º°­ÀÇ(mp4)

½Ç½À: ¹®Á¦(pdf, htm), ÇØ´ä(pdf)

(Homework 09) PIN=abcd (exmple: PIN=3194, a=3, b=1, c=9, d=4)

1. Capacitor equivalent circuit

1) Find and expression for the impedance.

2) f = 100a MHz, C1 = 20b nF, R2=b Gohm, R1=c/100 ohm, L1 = d/4 nH. Calculate the impedance.

 

Week-10(5/6): Passive RLC Components 3 - Inductors

ÀÌ·Ð: °­ÀÇ (pdf, pptx-no-voice, pptx-voice, mp4)

½Ç½À: °­ÀÇÀÚ·á(pdf, htm), À½¼º°­ÀÇ(mp4)

½Ç½À: ¹®Á¦(pdf, htm), ÇØ´ä(pdf)

(Homework 10) PIN=abcd (exmple: PIN=3194, a=3, b=1, c=9, d=4)

1. Inductor equivalent circuit

1) Find and expression for the impedance.

2) f = 100a MHz, R=10b ohm, L = 5b ¥ìH, C = d/10 pF. Calculate the impedance.

 

Week-11(5/13): Maxwell's Equations and Wave Equation

ÀÌ·Ð: °­ÀÇ (pdf, pptx-no-voice, pptx-voice, mp4)

½Ç½À: °­ÀÇÀÚ·á(pdf, htm), À½¼º°­ÀÇ(mp4)

½Ç½À: ¹®Á¦(pdf, htm), ÇØ´ä(pdf)

(Homework 11) PIN=abcd (exmple: PIN=3194, a=3, b=1, c=9, d=4)

1. f = 1 GHz, ¥år = a, ¥ìr = b. Find the wavelength and the intrinsic impedance.

 

Week-12(5/20): Planewave 1

ÀÌ·Ð: °­ÀÇ (pdf, pptx-no-voice, pptx-voice, mp4)

½Ç½À: °­ÀÇÀÚ·á(pdf, htm), À½¼º°­ÀÇ(mp4)

½Ç½À: ¹®Á¦(pdf, htm) ÇØ´ä(pdf)

(Homework 12) PIN=abcd (exmple: PIN=3194, a=3, b=1, c=9, d=4)

1. Planewave in lossy media

¥å'/ ¥å0 = a, ¥å'' = 0.1¥å', ¥ì'/ ¥ì0 = d, ¥ì''= 0, f = c GHz

Find the attenuation constant ¥á, propagation constant ¥â, and skin depth ¥äs.

 

Week-13(5/27): Planewave 2

ÀÌ·Ð: °­ÀÇ (pdf, pptx-no-voice, pptx-voice, mp4)

½Ç½À: °­ÀÇÀÚ·á(pdf, htm), À½¼º°­ÀÇ(mp4)

½Ç½À: ¹®Á¦(pdf, htm) ÇØ´ä(pdf)

(Homework 13)

Medium 1: air, Mediumk 2: ¥år = a, ¥ìr = b

1. Find the intrinsic impedance of the air ¥ç1 and of the earth ¥ç2.

2. Find the reflection cofficient ¥Ã and transmission coefficient ¥ó of a planewave normally incident from the air to the medium 2.

 

Week-14(6/3): Student Self-study Week

±ÝÁÖ´Â ±â¸»°í»ç °­ÀǾøÀÌ Çлý ÀÚÀ²ÀûÀ¸·Î ¹®Á¦Ç®ÀÌÇÕ´Ï´Ù.

Homework weeks 9-13 solutions

Python lab. problems weeks 9-13 solutions

 

Week-15(6/10): Final exam. (prob, sol)

´ä¾ÈÀº eCampus 15ÁÖÂ÷ °úÁ¦¶õ¿¡ Á¦Ãâ

±â¸»½ÃÇè: ¹®Á¦(pdf, htm)

 

[Summary of Formulas]

Lecure 01: Transmission lines 1

- Voltage and current waves

      

    

    

    

      

 

- R, L, G, C from Z0 and ¥ã

      

 

- Formulas for coaxial cable, two-wire line, and parallel-plate line

      

 

- Microstrip line formulas