一种宽带宽角双极化低剖面相控阵天线
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摘要
提出了一种米波段的宽带宽角双极化相控阵天线,实现了结构简单、质量轻且剖面低的天线设计。辐射单元间的紧耦合提供了基本的宽带特性,对单支节巴伦的改进以及加载隔离板的措施则在降低剖面高度的同时进一步挖掘了宽带潜能;为改善宽角扫描性能,还引入了宽角阻抗匹配层。最终,在135 MHz～270 MHz仅0.1λ_L剖面高度内实现±45°扫描,在对低剖面要求严格的宽带宽角场合具有广泛应用前景。
A meter wave band broad-band and wide-angle dual-polarized phased array antenna is proposed, which realizes the antenna design with simple structure, light weight and low profile. The tight coupling between the radiating elements provides basic broadband characteristics; the improvement of the single-stub balun and the measure of loading the separator lower the profile as well as further tap the broadband potential; besides, a wide-angle impedance matching layer is proposed to ameliorate the performance of wide-angle scanning. In the end, 135 MHz～270 MHz and ±45° scan are reached only in the height of 0.1λ_L profile, which has broad application prospects in the case of broad-band and wide-angle requiring strict low profile.
A meter wave band broad-band and wide-angle dual-polarized phased array antenna is proposed, which realizes the antenna design with simple structure, light weight and low profile. The tight coupling between the radiating elements provides basic broadband characteristics; the improvement of the single-stub balun and the measure of loading the separator lower the profile as well as further tap the broadband potential; besides, a wide-angle impedance matching layer is proposed to ameliorate the performance of wide-angle scanning. In the end, 135 MHz～270 MHz and ±45° scan are reached only in the height of 0.1λ_L profile, which has broad application prospects in the case of broad-band and wide-angle requiring strict low profile.
引文
[1] LEWIS L, FASSETT M, HUNT J. A broadband stripline array element[C]// Antennas and Propagation Society International Symposium. [S.l.]: IEEE Press, 1974: 335-337.
[2] 于大群, 吴鸿超, 何丙发, 等. 一种宽带宽角双极化相控阵天线单元研究[J]. 现代雷达, 2011, 33(11): 59-62.YU Daqun, WU Hongchao, HE Bingfa, et al. An antenna element for dual-polarized wide-band wide-angle phased array[J]. Modern Radar, 2011, 33(11): 59-62.
[3] WHEELER H. Simple relations derived from a phased-array antenna made of an infinite current sheet[J]. IEEE Transactions on Antennas and Propagation, 2003, 13(4): 506-514.
[4] MUNK B, PRYOR J, DURHAM T, et al. A low-profile broadband phased array antenna[C]// IEEE Antennas and Propagation Society International Symposium. Columbus: IEEE Press, 2003: 448-451.
[5] ZHANG Y, BROWN A K. Octagonal ring antenna for a compact dual-polarized aperture array[J]. IEEE Transactions on Antennas and Propagation, 2011, 59(10): 3927-3932.
[6] YANG X, QIN P Y, LIU Y, et al. Analysis and design of a broadband multi-feed tightly coupled patch array antenna[J]. IEEE Antennas and Wireless Propagation Letters, 2018, 17(2): 217-220.
[7] LUDWIG A. The definition of cross polarization[J]. IEEE Transactions on Antennas & Propagation, 1973, 21(1): 116-119.
[2] 于大群, 吴鸿超, 何丙发, 等. 一种宽带宽角双极化相控阵天线单元研究[J]. 现代雷达, 2011, 33(11): 59-62.YU Daqun, WU Hongchao, HE Bingfa, et al. An antenna element for dual-polarized wide-band wide-angle phased array[J]. Modern Radar, 2011, 33(11): 59-62.
[3] WHEELER H. Simple relations derived from a phased-array antenna made of an infinite current sheet[J]. IEEE Transactions on Antennas and Propagation, 2003, 13(4): 506-514.
[4] MUNK B, PRYOR J, DURHAM T, et al. A low-profile broadband phased array antenna[C]// IEEE Antennas and Propagation Society International Symposium. Columbus: IEEE Press, 2003: 448-451.
[5] ZHANG Y, BROWN A K. Octagonal ring antenna for a compact dual-polarized aperture array[J]. IEEE Transactions on Antennas and Propagation, 2011, 59(10): 3927-3932.
[6] YANG X, QIN P Y, LIU Y, et al. Analysis and design of a broadband multi-feed tightly coupled patch array antenna[J]. IEEE Antennas and Wireless Propagation Letters, 2018, 17(2): 217-220.
[7] LUDWIG A. The definition of cross polarization[J]. IEEE Transactions on Antennas & Propagation, 1973, 21(1): 116-119.