THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE Nov.; 26(11),

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1 THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE Nov.; 26(11), ISSN (Print) ISSN X (Online) Transceiver Design for Terminal Operating with Common Data Link on Ku-Band 정병구 서정원 류지호 Byeoung-Koo Jeong Jung-Won Seo Ji-Ho Ryu* 요약 200 km, 45 Mbps RF. RF Ku, /,,. RF 10 W, GaN.,, 6 SAW. AWR. Abstract In this paper, we designed a RF transceiver operating up to 200 km operating range and 45 Mbps data rate. The RF transceiver operates in Ku band and composed of up/down converter, high power amplifier, front-end elements. To satisfy the operating range of RF transceiver, 10W power amplifier was required and realized by using GaN power amplifier. Moreover, to mitigate mutual interference for different bandwidth signals due to the adaptive transmission speed control function, SAW filter bank structure was used. To verify system requirement satisfaction AWR simulation tool was used. Key words: Ku-Band, Transceiver, Fractional-N, Spectrum Mask, SAW Fiter. 서론 (Common Data Link: CDL) / Signal Intelligence 1991.,,, 10, 200 kbps (return link) 25, Mbps 45 Mbps (forward link). Ku X, [1]., (Hanwha Thales Co., Ltd.) * (Agency for Defense Development) Manuscript received September 25, 2015 ; Revised November 11, 2015 ; Accepted November 16, (ID No ) Corresponding Author: Byeoung-Koo Jeong ( 978 c Copyright The Korean Institute of Electromagnetic Engineering and Science. All Rights Reserved.

2 . Ku RF. RF, L, Ku,,, /,,,., /.. 본문 RF 1,. L, AGC, SAW. Ku L Ku / 2. Ku 10 W (3 db Back-off ). Ku,. Ku RF 200 km 1. 표 1. RF Table 1. RF transceiver specification for common datalink system. ( ) 14.xxx 15.xxx GHz 120 MHz 37 dbm EVM (Error Vector Magnitude) 7 % 75 khz, 85 khz, 95 khz, 105 MHz 60 dbc 7 db 2-1 L 대역변환반 L 45 Mbps 70 MHz 1.57 GHz L 1.57 GHz 70 MHz. 1.5 GHz LO(Local Oscillator) Integer-N Analog Devices ADF khz, 10 khz, 100 khz, Hittite 5-bit 0 39 db. L 39 db 2 75 db 그림 1. Ku RF Fig. 1. The airborne/surface RF terminal architecture for common data link on Ku band. 그림 2. L Fig. 2. The architecture of L band module. 979

3 THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. vol. 26, no. 11, Nov 그림 5. Ku PLL Fig. 5. The architecture of PLL module. 그림 3. L PLL Fig. 3. PLL simulation results on L band. 6 SAW 30 MHz 1 MHz. 2-2 Ku 대역주파수변환모듈 Ku 1.57 GHz Ku Ku 1.57 GHz L / 500 khz 2 Fractional-N Type. Ku PLL HMC704- LP4E, 8 GHz, 230 dbc/hz. Ku PLL L, 100 MHz 그림 6. Ku PLL Fig. 6. PLL simulation results on Ku band ppm Morion MV136 OCXO(Oven Controlled Crystal Oscillators). 100 khz., 1 khz 90 dbc/hz, 10 khz 98 dbc/hz, 100 khz 102 dbc/hz, 1 MHz 112 dbc/hz. 2-3 Ku 대역고출력증폭모듈 그림 4. Ku Fig. 4. The architecture of Ku band module. Ku (200 km ) EVM 8PSK PAPR(Peak-to-Average Power Ratio) 3 db back-off. 40 db,,. TOSHIBA 15 W GaAs FETs 50 W GaN HEMT 980

4 그림 7. Fig. 7. The architecture of power-amplifier module. 5 db. ALC(Auto Level Control),, open short. 2-4 전단처리모듈 RF FDD Ku 80 dbc, 4 db, 35 db 2 2 Matrix SW1, 2 2 Matrix SW2 2 SMA Term RF. 2-5 RF 시스템 Ku RF AWR TOOL 그림 9. Fig. 9. The simulation results of the spectrum mask & spurious(awr).., ACP 30 db, 60 dbc.., 5.5 db, 83 db. 45 Mbps 28 MHz, SNR(Signal to Noise Ratio) 13 db, 7 db (1) 80 dbm. 수신감도 dbm Hz log (1) SNR 13 db EVM 22.5 %., EVM, RF. EVM. EVM 그림 8. Fig. 8. The architecture of front-end module. 그림 10. Fig. 10. The simulation results of the Gain & NF(AWR). 981

5 THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. vol. 26, no. 11, Nov 그림 11. EVM Fig. 11. Error vector magnitude and related quantities.. (2) 8PSK SER(Symbol Erorr Rate) 10 3 E s /N o 15 db [6]. E s, N o.. 측정결과 Ku. RF, EVM ACP,,. 그림 13. Fig. 13. Modulation ouput of vector signal generator. Keysight PSG 8 PSK, 45 Mbps. Keysight PSA EVM. EVM 1.6 %. 37 dbm(3 db back-off ), ACP 30 dbc. RF EVM 7 %., 1 khz 84 dbc/ Hz, 10 khz 92 dbc/hz, 100 khz 98 dbc/hz, 3-1 송신부측정결과 그림 12. / RF Fig. 12. The airborne/surface RF terminal for common data link on Ku band. 그림 14. ACP (45 Mbps ) Fig. 14. Measured result of adjacent channel power. 982

6 그림 15. EVM(45 Mbps ) Fig. 15. Measured result of EVM on Ku band. 그림 18. Fig. 18. Measured result of phase-noise on IF band. 그림 16. Fig. 16. Measured result of phase-noise on Ku band. 1 MHz 116 dbc/hz. 3-2 수신부측정결과 그림 17. EVM(45 Mbps ) Fig. 17. Measured result of EVM on IF band. 70 MHz EVM, 17. AGC 15 dbm, 22 % EVM,. 1 khz 85 dbc/hz, 10 khz 92 dbc/hz, 100 khz 98 dbc/hz, 1 MHz 116 dbc/hz.. 결론 Ku 45 Mbps RF. EVM, EVM 7 % 1 khz 84 dbc/hz, 10 khz 92 dbc/ Hz, 100 khz 98 dbc/hz, 1 MHz 116 dbc/hz. 200 km ( SNR ) 80 dbm 22 % EVM 1 khz 84 dbc/hz, 10 khz 92 dbc/hz, 100 khz 98 dbc/ Hz, 1 MHz 116 dbc/hz AGC 15 dbm. 983

7 THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. vol. 26, no. 11, Nov Mbps 16, 8, 4, 2 Mbps., 200 km Ku. RF Ku 45 Mbps RF.. References [1],,, " ",, 28(7), pp , [2] Dean Banerjee, PLL Performance, Simulation, and Design, 2nd Ed., [3] M. Moghavvemi, H. Ameri "Assemble a Ku-band frequency synthesizer", Microwaves & RF, pp , Jan [4] Behzad. Razavi, RF Microelectronics, Prentice Hall, pp , [5] B. Widrow, S. D. Stearns, Adaptive Signal Processing, Prentice Hall Inc., pp , [6] J. L. Pinto, I Darwazeh, "Effects of magnitude and phase distortion in 8-PSK systems on error vector magnitude measurements", Electronics Letters, vol. 37, issue 7, pp , Mar : ( ) : ( ) : ( ) : [ 주관심분야 ], DATA LINK : ( ) : ( ) : [ 주관심분야 ] DATA LINK : ( ) : ( ) : [ 주관심분야 ], DATA LINK 984

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