THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE Oct.; 27(10),

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1 THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE Oct.; 27(10), ISSN (Print) ISSN X (Online) Directed Energy Weapon System and Analysis on Effectiveness HPM Weapon 김일규 김문섭 Ilkyu Kim Moonsup Kim 요약.,..,.,. Abstract Directed energy weapon enables to radiate the concentrated energy so as to result in distraction and overload of the target electronics. Analysis on effectiveness of weapon system can be important consideration in order to determine performance and design weapon system. In this paper, air defense weapon system, which is one of directed energy weapon system is studied. In order to analyze the effectiveness, the reflector antenna with high power circularly polarized horn antenna is designed, and power density in axial effective area is simluated and calculated using Friis formula. Through the study, the validity of antenna system is verified, and the effectiveness of directed energy weapon system on the target is evaluated. Key words: Effectiveness Analysis, Directed Energy Weapon, High Power Microwaves, High Power Feed Horn, Circular Polarization. 서론 (electro-magnetic microwave pulse),, [1] [3].,,.,., (front-door), (back-door). (front-door) ( ), (C4I & SRR Team, Defense Agency for Technology and Quality) Manuscript received August 18, 2016 ; Revised October 5, 2016 ; Accepted October 18, (ID No ) Corresponding Author: Ilkyu Kim( ilkyukim@gmail.com) c Copyright The Korean Institute of Electromagnetic Engineering and Science. All Rights Reserved. 935

2 THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. vol. 27, no. 10, Oct ,.,...,.,.,.,.,,... 지향성에너지무기소개 2-1 지향성에너지무기의체계구성 1,, ( ). 1 4 그림 1. Fig. 1. Operation of directed energy weapons. 표 1. Table 1. Classificaion of HPM effectiveness. UPSET LOCKUP LATCHUP BURNOUT [1] [4]., mw/cm 2 ( W/m 2 )., 2.. ns,. ( ),.,,, 936

그림 2. Fig. 2. Sub-system of directed energy weapon. [1],[2].,,. 2-2 지향성무기체계현황 (ADS) (MAN- PADS) [6].. /,. Vigilant Eagle. Vigilant Eagle 10 km... 지향성에너지무기의표적도달출력밀도분석 (Prime Focus Parabolic Reflector),.

3 그림 2. Fig. 2. Sub-system of directed energy weapon. [1],[2].,,. 2-2 지향성무기체계현황 (ADS) (MAN- PADS) [6].. /,. Vigilant Eagle. Vigilant Eagle 10 km... 지향성에너지무기의표적도달출력밀도분석 (Prime Focus Parabolic Reflector),. 그림 3. Septum Fig. 3. High power circularly polarized feed horn with septum structure.,. 3-1 고출력원형편파피드혼안테나 [5] septum (conical horn). 3 septum, TM TE 11 TM 11.,, Port 1 Port 2. Septum,,. 4 hard-polarized soft-polarized (half-plane).. septum 5 Sigmoid septum. Septum Particle Swarm Optimization(PSO), (VSWR<1.5 ) (AR<2 ) septum. 937

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. vol. 27, no. 10, Oct.

( ) Hard polarized, ( ) Soft polarized Fig. 4.

, 3 db 1 8 km 140 m.,., 211.3 KW 8 km 1 mw/cm 2 (UPSET ). 66 λ, 10 db edge taper (F) 32.54 λ 6.

4 THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. vol. 27, no. 10, Oct 체계성능분석및파라볼릭반사판안테나설계 그림 4. ( ) Hard polarized, ( ) Soft polarized Fig. 4. E-field intensity and current density on half-plane due to the plane-wave incident field., 3 db 1 8 km 140 m.,., KW 8 km 1 mw/cm 2 (UPSET ). 66 λ, 10 db edge taper (F) λ (LHCP). 그림 5. Septum ( : 5.8 GHz) Fig. 5. Septum design with smooth profile(f=5.8 GHz). 1 W (E br = V/m), KW. 30 KW septum 7. 그림 6. ( ), ( ) Fig. 6. Parabolic reflector with CP feed horn and far-field pattern at 5.8 GHz. 938

그림 7. (2 km, 4 km, 8 km) ( : 5.8 GHz) Fig. 7. Power density in axial effective area at the distance of 2 km, 4 km, and 8 km(f=5.8 GHz). 45.8 db, 35 db. 3-3 표적도달출력밀도분석 FEKO 1), 2).

2 km 4 km 8 km ( ) ( ) 76.86 W/m2 (7.69 mw/cm 2 ) 153.23 W/m 2 (15.3 mw/cm 2 ) 79.74 W/m 2 (7.97 mw/cm 2 ) 159.49 W/m 2 (15.95 mw/cm 2 ) 21.49 W/m2 38.20 W/m 2 19.93 W/m 2 39.87 W/m 2 (2.

5 그림 7. (2 km, 4 km, 8 km) ( : 5.8 GHz) Fig. 7. Power density in axial effective area at the distance of 2 km, 4 km, and 8 km(f=5.8 GHz) db, 35 db. 3-3 표적도달출력밀도분석 FEKO 1), 2). septem (211.3 KW) 1 (2 km, 4 km, 8 km). / /, 3 db 3 db mw/cm 2. (E t) (S). (W/m 2 ) (1) 표 2. (, ) Table 2. Comparison of simulated and calculated power density. 2 km 4 km 8 km ( ) ( ) W/m2 (7.69 mw/cm 2 ) W/m 2 (15.3 mw/cm 2 ) W/m 2 (7.97 mw/cm 2 ) W/m 2 (15.95 mw/cm 2 ) W/m W/m W/m W/m 2 (2.15 mw/cm 2 ) (3.82 mw/cm 2 ) (1.99 mw/cm 2 ) (3.99 mw/cm 2 ) 4.24 W/m2 (0.42 mw/cm 2 ) 9.54 W/m 2 (0.95 mw/cm 2 ) 4.98 W/m 2 (0.50 mw/cm 2 ) 9.96 W/m 2 (1.00 mw/cm 2 ) 377 Ω., 15 %.. FEKO. 1.5 m, 400 m, 800 m.. 8., 939

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. vol. 27, no. 10, Oct. 2016., 8 km..,. References 그림 8. ( : 5.8 GHz) Fig. 8. Simulated power-density induced on missile model (f=5.

Curtis Schleher, Electronic Warfare in the Information Age, Boston Artech House, 1999. [3], " ",, 24(8), pp. 781-790, 2013 8. [4],, " EMP ",, 24(8), pp.

6 THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. vol. 27, no. 10, Oct , 8 km..,. References 그림 8. ( : 5.8 GHz) Fig. 8. Simulated power-density induced on missile model (f=5.8 GHz). 2.3 kw(r=400 m), 0.6 kw(r=800 m).,.. 결론,. [1] J. Benford, J. A. Swegle, and E. Schamiloglu, High Power Microwaves, Taylor and Francis, pp , [2] D. Curtis Schleher, Electronic Warfare in the Information Age, Boston Artech House, [3], " ",, 24(8), pp , [4],, " EMP ",, 24(8), pp , [5] I. Kim, J. Kovitz, and Y. Rahmat-Samii, "Enhancing the power capabilities of the stepped septum using an optimized smooth sigmoid profile", IEEE Antennas and Propation Magazine, vol. 56, no. 5, pp , Sep [6] B. Samueli, "Directed energy weapon: Vigilant eagle", IHS Jane's 360, Apr : ( ) 2006 : University of Southern California ( ) : : University of California at Los Angeles ( ) 2013 : [ 주관심분야 ], /, 2003 : [ 주관심분야 ], 940

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. vol. 29, no. 10, Oct ,,. 0.5 %.., cm mm FR4 (ε r =4.4)

THE JOURNAL OF KOREAN INSTITUTE OF ELECTROMAGNETIC ENGINEERING AND SCIENCE. 2018 Oct.; 29(10), 799 804. http://dx.doi.org/10.5515/kjkiees.2018.29.10.799 ISSN 1226-3133 (Print) ISSN 2288-226X (Online) Method