Radio Frequency Systems Engineering (°íÁÖÆÄ½Ã½ºÅÛ°øÇÐ)
1. °øÁö»çÇ×
¤· Grading: Ãâ¼® 10%, °úÁ¦ 15%, ½Ç½À 15% Áß°£½ÃÇè 30%, ±â¸»½ÃÇè 30%
¤· 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: SWÁ߽ɴëÇÐ ÄÚµùÀ̷°ü¸®½Ã½ºÅÛ¿¡ ¾÷·Îµå
¤· °Àǰü·Ã ¹®ÀÇ»çÇ×: ´ã´ç±³¼ö bician@cbu.ac.kr (E10-611)
Á¶±³: ÇãÁö¿ø gjwldnjs131@naver.com (E10-519)
¤· SW Á߽ɴëÇÐ »ç¾÷´Ü ÄÚµùÀ̷°ü¸® ½Ã½ºÅÛ: https://sw7up.cbnu.ac.kr/project/dashboard Á¢¼ÓÇÏ¿© ¾÷·Îµå. »ç¿ë¼³¸í¼
; ÆÄÀϸíÀ» *.c, *.py, *.cpp À¸·Î ¾÷·Îµå
2. ÁÖº° °ÀÇ
Week-01:
Intro to RF Systems
Lecture (pdf)
(°úÁ¦) ÀÚ±âºÐ¼®; Á¤ÇØÁø ¾ç½Ä ¾øÀ½. ¢ç eCampus¿¡ ¾÷·Îµå
¹®Á¦1=1.1-2.2 Çб⠵ǵ¹¾Æ º¸±â
¹®Á¦2=3.1-4.2Çбâ Çо÷/¿ª·®Çâ»ó °èȹ¼ö¸³
¹®Á¦3=Á¹¾÷ÈÄ Áø·Î/Ãë¾÷°èȹ
Week-02:
Transmission Lines 1
À̷аÀÇ: 5G
Smartphone RF Front End Technology (pdf)
À̷аÀÇ (pdf, pptx-no-voice, pptx-voice, mp4)
½Ç½À°ÀÇ (pdf, htm), À½¼º°ÀÇ(ÆÄÀ̽ã»ç¿ë¹ý&½Ç½À3¹ø, ½Ç½À1¹ø&2¹ø, ½Ç½À4¹ø)
Çлý½Ç½À (pdf, htm): ¼ö¾÷½Ã°£ ³»¿¡ ÄÚµùÀ̷°ü¸®½Ã½ºÅÛ¿¡ ¾÷·ÎµåÇÑ ÈÄ¿¡ Á¶±³ äÁ¡
À̷м÷Á¦: ´ÙÀ½ ¼ö¾÷ÀϱîÁö eCampus ¾÷·Îµå
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-03:
Transmission Lines 2
À̷аÀÇ: AI on
Mobile Devices (pdf)
À̷аÀÇ (pdf, pptx-no-voce, pptx-voice, mp4)
½Ç½À°ÀÇ (pdf, htm), À½¼º°ÀÇ(mp4)
Çлý½Ç½À (pdf, htm): ¼ö¾÷½Ã°£ ³»¿¡ ÄÚµùÀ̷°ü¸®½Ã½ºÅÛ¿¡ ¾÷·ÎµåÇÑ ÈÄ¿¡ Á¶±³ äÁ¡
(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
À̷м÷Á¦: ´ÙÀ½ ¼ö¾÷ÀϱîÁö eCampus ¾÷·Îµå
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

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Week-04:
Transmission Lines 3
À̷аÀÇ: Review
of the AI Chatbot (pdf)
À̷аÀÇ (pdf, pptx-no-voice, pptx-voice, mp4)
½Ç½À°ÀÇ (pdf, htm), À½¼º°ÀÇ(mp4)
Çлý½Ç½À (pdf, htm): ¼ö¾÷½Ã°£ ³»¿¡ ÄÚµùÀ̷°ü¸®½Ã½ºÅÛ¿¡ ¾÷·ÎµåÇÑ ÈÄ¿¡ Á¶±³ äÁ¡
À̷м÷Á¦: ´ÙÀ½ ¼ö¾÷ÀϱîÁö eCampus ¾÷·Îµå
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:
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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-05: Smith
Chart
À̷аÀÇ: AI Tools
(pdf)
À̷аÀÇ (pdf, pptx-no-voice, pptx-voice, mp4)
Çлý½Ç½À (pdf, htm): ¼ö¾÷½Ã°£ ³»¿¡ ÄÚµùÀ̷°ü¸®½Ã½ºÅÛ¿¡ ¾÷·ÎµåÇÑ ÈÄ¿¡ Á¶±³ äÁ¡
À̷м÷Á¦: ´ÙÀ½ ¼ö¾÷ÀϱîÁö eCampus ¾÷·Îµå
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.
Âü°í:
½º¹Ì½ºµµÇ¥ ¾ç½Ä: Smith-z-chart, Smith-y-chart, Smith-zy-chart
Wee-06:
Impedance Matching 1
±â¸»½ÃÇè: 8ÁÖÂ÷ ¼ö¾÷½Ã°£, ¿ÀǺÏ, ½º¸¶Æ®Æù/ÅÂºí¸´/ÄÄÇ»ÅÍ ¹Ì»ç¿ë, 50ºÐ°£, ÄÚµù¹®Á¦Æ÷ÇÔ
À¯¿ëÇÑ ±³¾ç°ÁÂ(htm)
À̷аÀÇ (pdf, pptx-no-voice, pptx-voice, mp4)
½Ç½À°ÀÇÀÚ·á (pdf, htm), À½¼º°ÀÇ (mp4)
Çлý½Ç½À (pdf, htm): ¼ö¾÷½Ã°£ ³»¿¡ ÄÚµùÀ̷°ü¸®½Ã½ºÅÛ¿¡ ¾÷·ÎµåÇÑ ÈÄ¿¡ Á¶±³ äÁ¡
À̷м÷Á¦: PIN=abcd
(example: 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-07:
Impedance Matching 2
À̷аÀÇ (pdf, pptx-no-voice, pptx-voice, mp4)
½Ç½À°ÀÇ (pdf, htm), À½¼º°ÀÇ(mp4)
Çлý½Ç½À (pdf, htm): ¼ö¾÷½Ã°£ ³»¿¡ ÄÚµùÀ̷°ü¸®½Ã½ºÅÛ¿¡ ¾÷·ÎµåÇÑ ÈÄ¿¡ Á¶±³ äÁ¡
(Âü°í) LC matching: Python souce code (python-general LC matching.doc)
À̷м÷Á¦: ´ÙÀ½ ¼ö¾÷ÀϱîÁö eCampus ¾÷·Îµå
PIN=abcd (example: 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-08:
Mid-term Exam
Áß°£°í»ç: ¹®Á¦(doc), ½ÃÇè½Ã°£ 50ºÐ, ¼ö±â´ä¾È Á¦Ãâ, ¿ÀǺÏ(°ÀÇ³ëÆ®, °øºÎ³ëÆ®, Ã¥ µî), Á¤º¸±â±â(½º¸¶Æ®Æù µî) ¹Ì»ç¿ë
Week-09:
Passive RLC Components 1 - Resistors
À̷аÀÇ (pdf, pptx-no-voice, pptx-voice, mp4) (À½¼º°ÀÇÀÚ·á´Â ÀÛ¾÷ÁßÀÌ¸ç ±ÝÀÏÁß ¾÷·ÎµåµË´Ï´Ù.)
½Ç½À°ÀÇ (pdf, htm), À½¼º°ÀÇ(mp4)
Çлý½Ç½À (pdf, htm): ¼ö¾÷½Ã°£ ³»¿¡ ÄÚµùÀ̷°ü¸®½Ã½ºÅÛ¿¡ ¾÷·ÎµåÇÑ ÈÄ¿¡ Á¶±³ äÁ¡
À̷м÷Á¦: ´ÙÀ½ ¼ö¾÷ÀϱîÁö eCampus ¾÷·Îµå
PIN=abcd (example: PIN=3194, a=3, b=1, c=9, d=4)
1. Resistor equivalent circuit

1) Find an expression for the impedance.
2) f = a MHz, R = 100b (ohm), L = b nH, C= 2d pF.
Calculate the impedance.
Week-10:
Passive RLC Components 2 - Capacitors
À̷аÀÇ (pdf, pptx-no-voice, pptx-voice, mp4)
½Ç½À°ÀÇ (pdf, htm), À½¼º°ÀÇ(mp4)
Çлý½Ç½À (pdf, htm): ¼ö¾÷½Ã°£ ³»¿¡ ÄÚµùÀ̷°ü¸®½Ã½ºÅÛ¿¡ ¾÷·ÎµåÇÑ ÈÄ¿¡ Á¶±³ äÁ¡
À̷м÷Á¦: ´ÙÀ½ ¼ö¾÷ÀϱîÁö eCampus ¾÷·Îµå
PIN=abcd (example: 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-11:
Passive RLC Components 3 - Inductors
À̷аÀÇ (pdf, pptx-no-voice, pptx-voice, mp4)
½Ç½À°ÀÇ (pdf, htm), À½¼º°ÀÇ(mp4)
Çлý½Ç½À (pdf, htm): ¼ö¾÷½Ã°£ ³»¿¡ ÄÚµùÀ̷°ü¸®½Ã½ºÅÛ¿¡ ¾÷·ÎµåÇÑ ÈÄ¿¡ Á¶±³ äÁ¡
À̷м÷Á¦: ´ÙÀ½ ¼ö¾÷ÀϱîÁö eCampus ¾÷·Îµå
PIN=abcd (example: 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-12:
Maxwell's Equations and Wave Equation
À̷аÀÇ (pdf, pptx-no-voice, pptx-voice, mp4)
½Ç½À°ÀÇ (pdf, htm), À½¼º°ÀÇ(mp4)
Çлý½Ç½À (pdf, htm): ¼ö¾÷½Ã°£ ³»¿¡ ÄÚµùÀ̷°ü¸®½Ã½ºÅÛ¿¡ ¾÷·ÎµåÇÑ ÈÄ¿¡ Á¶±³ äÁ¡
À̷м÷Á¦: ´ÙÀ½ ¼ö¾÷ÀϱîÁö eCampus ¾÷·Îµå
PIN=abcd (example: 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-13:
Communication Systems and Link Budget
À̷аÀÇ (pdf)
°ÀÇ³ëÆ® ¹®Á¦ ÄÚµù = Take-Home Final Exam. (13ÁÖ °úÁ¦¶õ¿¡ Á¦Ãâ: ¸¶°¨ 6¿ù14ÀÏ23:59)
PBL
(Project-Based Learning) Lecture 1 (pdf)
PBL ÆÀ¿ø(A,B,C) ¾÷¹«ºÐ´ã:
º¸°í¼: ¿ä¾à=A, 1. ¼·Ð=B, 2. ÀÌ·Ð=C, 3. ½ÇÇè=A,B,C(°¢ÀÚ ÄÚµù; ½ÇÇà; °¢ÀÚ 3.½ÇÇè ÀÛ¼ºÇÏ¿© ÃëÇÕ(°¢ÀÚ ÀÛ¼ºÇÑ ºÎºÐ ±×´ë·Î ¼ö·Ï), °á·Ð=A,B,C(°¢ÀÚ °á·Ð ÀÛ¼ºÇÏ¿© ÃëÇÕ; °¢ÀÚ ÀÛ¼ºÇÑ ºÎºÐ ±×´ë·Î ¼ö·Ï)
À̷м÷Á¦: ´ÙÀ½ ÁÖ ¼ö¾÷ÀϱîÁö eCampus ¾÷·Îµå
Make a Python code. Include the result of code
execution.
Receiver thermal noise
(Input)
ts: receiver noise temperature (K)
b: receiver bandwidth (Hz)
(Output)
n: receiver thermal noise power (W)
ndBm: receiver noise power in dBm
Week-14:
Radar Systems and Radar Equation
À̷аÀÇ (pdf)
°ÀÇ³ëÆ® ¹®Á¦ ÄÚµù = Take-Home Final Exam. (14ÁÖ °úÁ¦¶õ¿¡ Á¦Ãâ)
PBL Lecture 2 (pdf)
À̷м÷Á¦: ¾øÀ½.
Week-15:
Final exam.
±â¸»½ÃÇèÀº PBL º¸°í¼·Î ´ëüÇÕ´Ï´Ù: Èñ¸ÁÆÀÀº °Àǽ𣿡 Çб³¿¡¼ ¿Í¼ Á¶±³¿Í ´ã´ç±³¼öÀÇ µµ¿òÀ» ¹ÞÀ» ¼ö ÀÖÀ½.
PBL º¸°í¼ = 15ÁÖÂ÷ °úÁ¦¶õ¿¡ Á¦Ãâ (¸¶°¨ 6¿ù14ÀÏ23:59)