[논문]Dual Polarized Array Antenna for S/X Band Active Phased Array Radar Application

Han, Min-Seok; Kim, Ju-Man; Park, Dae-Sung; Kim, Hyoung-Joo; Choi, Jae-Hoon

doi:10.5515/jkiees.2010.10.4.309

[국내논문] Dual Polarized Array Antenna for S/X Band Active Phased Array Radar Application 원문보기

Journal of the Korean Institute of Electromagnetic Engineering and Science, v.10 no.4, 2010년, pp.309 - 315

Han, Min-Seok (Dept. of Electronics and Computer Engineering, Hanyang University) , Kim, Ju-Man (Dept. of Electronics and Computer Engineering, Hanyang University) , Park, Dae-Sung (Core Technology Group of Samsung Thales) , Kim, Hyoung-Joo (Core Technology Group of Samsung Thales) , Choi, Jae-Hoon (Dept. of Electronics and Computer Engineering, Hanyang University)

Abstract ▼ AI-Helper

A dual-band dual-polarized microstrip antenna array for an advanced multi-function radio function concept (AMRFC) radar application operating at S and X-bands is proposed. Two stacked planar arrays with three different thin substrates (RT/Duroid 5880 substrates with $\varepsilon_r$=2.2 and three different thicknesses of 0.253 mm, 0.508 mm and 0.762 mm) are integrated to provide simultaneous operation at S band (3~3.3 GHz) and X band (9~11 GHz). To allow similar scan ranges for both bands, the S-band elements are selected as perforated patches to enable the placement of the X-band elements within them. Square patches are used as the radiating elements for the X-band. Good agreement exists between the simulated and the measured results. The measured impedance bandwidth (VSWR$\leq$2) of the prototype array reaches 9.5 % and 25 % for the S- and X-bands, respectively. The measured isolation between the two orthogonal polarizations for both bands is better than 15 dB. The measured cross-polarization level is ${\leq}-21$ dB for the S-band and ${\leq}-20$ dB for the X-band.

Keyword

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제안 방법

The proposed dual-polarized array antenna has been simulated and designed with the aid of the commercially available simulation software MWS [11] in order to optimize the geometrical parameters of the array antenna. The final design parameters for the proposed DBDP array antenna are listed in Table 3.

성능/효과

The measured impedance bandwidth (VSWR≤2) of the prototype array reached 9.5 % and 25 % for the S- and X-bands, respectively, and the measured isolation between the two orthogonal polarizations for both bands was better than 15 dB.

후속연구

The experimental results confirm the practicability of the DBDP antenna array with a flexible frequency ratio, which is an attractive advantage for future active phased array antenna such as AMRFC radar application systems. Further research on the performance improvement applied to future active phased array antenna and the analysis of the change of antenna characteristic based on various scan angles will be carried out. In addition, array size expansion (S-band 2×2 array and X-band 8×8 array) will be conducted.

참고문헌 (11)

G. C. Tavik, J. Y. Choe, and P. K. Hughes, II, "Advanced multifunction radio frequency (AMRF) concept testbed overview," in Government Microcircuit Application Conf. Dig., pp. 100-102. Mar. 2001.
G. V. Trunk, "Advanced multifunction RF system (AMRFS) preliminary design considerations," NRL, Washington, DC, Formal Rep. 5300-01-9914, Dec. 10, 2001.
S. Gao, A. Sambell, "Dual-polarized broad-band microstrip antennas fed by proximity coupling," IEEE Transactions on Antennas and Propagation, vol. 53, no. 1, pp. 526-530, Jan. 2005.

상세보기
X. Qu, S. S. Zhong, Y. M. Zhang, and W. Wang, "Design of an S/X dual-band dual-polarised microstrip antenna array for SAR applications," IET Microw. Antennas Propag., vol. 1, no. 2, pp. 513-517, 2007.

상세보기
Y.-J. Ren, S. -H. Hsu, M.-Y. Li, and K. Chang, "A dual-frequency dual-polarized planar airborne array antenna," IEEE International Symposium on Antenna and Propagation and CNC/USNC/URSI Radio Science Meeting 2008, Sandiego, USA, Jul. 5-12, 2008.
J. M. Steyn, J. W. Odendaal, and J. Joubert, "Dualband dual-polarized array for WLAN applications," Progress in Electromagnetics Research C, vol. 10, pp. 151-161, 2009.

상세보기
G. Vetharatnam, V. C. Koo, "Compact L- & C-band SAR antenna," Progress in Electromagnetics Research C, vol. 8, pp. 105-114, 2009.

상세보기
Y. Ren, Y. Zhang, "Ultra-lightweight dual-polarized X-band array antenna for airborne weather radar applications," Microwave and Optical Technology Letters, vol. 51, pp. 1324-1326, May 2009.

상세보기
L. N. Zhang, S. S. Zhong, and X. L. Liang, "Dualband dual-polarized hybrid antenna array," Progress in Electromagnetics Research Symposium 2010, Xi'an, China, Mar. 2010.
Robert J. Maillous, Phased Array Antenna Handbook, 2nd Ed., Artech House, USA, 2005.
Computer Simulation Technology (CST) Microwave Studio. Suite 2009 [Online]. Available: http://www.cst.com

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