www.rfdh - 대한민국을 RF강국으로!

1 : RF ! ?RFDH . RF homepage ( ) . 2000 8 1 , RF . , RF , , Q&A RF . , 2000~2001 2 RF . RF RF , , 2007 .RFDH , . 10 RF , . RF , .600 300.

2 , .RFDH 2000 , 2007 RF , / RF . RF , RF / . RF , . , 6 RF . , . RF , , RF , / .RFDH 4 5 RF Chapter 01 50 ?Chapter 02 Microstrip ? Chapter 03 Port ? Chapter 04 ? Chapter 05 RF S Chapter 06 dB ? Chapter 07 dB dBm ?

3 Chapter 01 RF ? Chapter 02 RF L CChapter 03 ?Chapter 04 !Chapter 05 Chapter 06 (Resonance) Chapter 07 part I IF ( ), Chapter 08 part 2 RF Chapter 01 Harmonic ?Chapter 02 Intermodulation Chapter 03 ? Chapter 04 IMD, P1dB, IP3 Chapter 05 Power Amp ACPRC hapter 06 !Chapter 01 ? Chapter 02 ? Chapter 03 Chapter 04 (Demo Version) Chapter 05 - lumped RLC Chapter 06 LC vs. Chapter 07 - Microstrip Chapter 08 , Chapter 01 Amplifier ( ) Chapter 02 Oscillator ( ) Chapter 03 PLL (Phase Locked Loop) Chapter 04 Mixer ( ) Chapter 05 Frequency Doubler/Multiplier ( ) Chapter 06 Filter ( ) Chapter 07 Duplexer/Diplexer Chapter 08 Coupler/Divider Chapter 09 Isolator/Circulator Chapter 10 Antenna ( )617192224283235414657667585971071231291 3513914515116116517017618619820622123123 7249266281287298304317327 1 RF ?

4 2 RF 3 ?RF = (Wireless) , RF ' (Wireless)' . , . , . - - - ( )- , , - RF - , , - GPS, - ( ) , . RF . , . " " . RF component . RF ? . ^^; , . , , .8RF ? RF ' '.

5 , , RF . , RF .. RF , . ? , RF . (Electromagnetic Wave) , .. (Electromagnetic Wave) , . RF . ~ Maxwell , ( ..) Hertz . Marconi , . , , .. (AC) , . , RF .. ?.

6 ?RF , . , . (High Frequency) ! RF , , RF . , .. , . RF .. RF ' ' . ?? , . , .. 1 . , ' ' .. CDMA , .10RF ? .. , .TV.

7 Cellular (011,017) 800 MHz , PCS (016,018,019) . , 800 MHz . PCS ? .. ^^; , . ~ . , RF .. , .. , 800 MHz 011 016 . 016 . ( ) , . + . , RF .. , RF.

8 -.,- ( ) , . RF Radio Frequency .. KBS, MBC, .. ? .. , Radio . (Radio) , . ( ) (FM ) .. ( ) , Radio ..Radio = Wireless . Radio (wire) (less), ' ' , Radiate ( , , ) . , Radio ' ' . , ' ( )' .Frequency ( ) . , sine ( = modulation) .f: (frequency)T: (Period) : (Wavelength)c: (3 x 108 m/s)12RF ?

9 (T) , T 1 ? . , . ( : ) , .. , ..RF (Radio Frequency) 'Radio' . Radio , Frequency RF ( ) , .Microwave & Millimeter waveRF Microwave ( ) , RF Microwave . , RF . Microwave . Microwave 300 MHz ~ 300 GHz . Microwave , = . Micro ( ) , . ( m) , .. Microwave band.

10 100 MHz3 m300 MHz1 m1 GHz30 cm2 GHz15 cm3 GHz10 cm30 GHz1 cm100 GHz3 mmMillimeterWave 300 Mhz1 Ghz2 Ghz4 Ghz8 Ghz12 Ghz18 Ghz26 Ghz40 Ghz60 GhzL-bandS-bandC-bnadX-bandKu-bandK-band Ka-bandU- . L band , S band . C band X band , Ku, K, Ka band , LMDS, . , Millimeter wave . (mm) mm . 1 GHz 30cm . 10 GHz 3cm, 30 GHz 1cm , 30 GHz cm mm . 30 GHz Millimeter wave . Millimeter wave Microwave . Microwave Millimeter wave , mm m . , Microwave Micro- . 30 GHz Millimeter wave , 10 GHz 20 GHz Millimeter wave.