基于波导式带阻结构的多元微带贴片阵互耦削减研究
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摘要
多天线系统的互耦削减是当代无线通信技术关注的热点之一。开发出一种基于互补交叉弯曲线刻蚀阵列、适合用平面印刷电路工艺制作的二维准各向同性波导式带阻结构,通过在贴片单元之间加载此类波导式带阻结构实现了紧凑的弱互耦三元和四元微带贴片天线阵。实验结果显示不同阵元间耦合在中心频率上降低了8 dB～30 dB,验证了此类波导式带阻结构削减相邻微带贴片阵元间耦合的有效性。所提的去耦方法对贴片阵元的辐射性能影响很小。
Reduction of mutual coupling for multi-antenna system is an one of the hot topics of modern wireless communication technology. A novel planar waveguided band-gap structure(WG-BGS)based on periodic array of complementary-crossed-meander-line(CCML)etched in metal plate was developed. It exhibits nearly isotropic band-gap property and is easy to fabricate with PCB art. By inserting the WG-BGS between neighboring patch elements,compact three-element and four-element patch arrays with reduced mutual couplings were realized. The measurement results of those patch arrays show that the mutual couplings between different patch elements have been reduced by 8 dB to 30 dB,verifying the validity of the proposed WG-BGS decoupling technique. The proposed de-coupling technique has little influence on the radiation performance of patch elements.
Reduction of mutual coupling for multi-antenna system is an one of the hot topics of modern wireless communication technology. A novel planar waveguided band-gap structure(WG-BGS)based on periodic array of complementary-crossed-meander-line(CCML)etched in metal plate was developed. It exhibits nearly isotropic band-gap property and is easy to fabricate with PCB art. By inserting the WG-BGS between neighboring patch elements,compact three-element and four-element patch arrays with reduced mutual couplings were realized. The measurement results of those patch arrays show that the mutual couplings between different patch elements have been reduced by 8 dB to 30 dB,verifying the validity of the proposed WG-BGS decoupling technique. The proposed de-coupling technique has little influence on the radiation performance of patch elements.
引文
[1] Yang F,Rahmat-Samii Y.Microstrip Antennas Integrated with Electromagnetic Band-Gap(EBG)Structures:A Low Mutual Couplingdesign for Array Applications[J].IEEE Transactions on Antennas and Propagation,2003,51(10):2936-2946.
[2] Ghosh S,Tran T N,Le-Ngoc T.Dual-Layer EBG-Based Miniaturized Multi-Element Antenna for MIMO Systems[J].IEEE Transactions on Antennas and Propagation,2014,62(8):3985-3997.
[3] Li Q,Feresidis A P,Mavridou M,et al.Miniaturized Double-Layer EBG Structures for Broadband Mutual Coupling Reduction Between UWB Monopoles[J].IEEE Transactions on Antennas and Propagation,2015,63(3):1168-1171.
[4] Al-Hasan M J,Denidni T A,Sebak A R.Millimeter-Wave Compact EBG Structure for Mutual Coupling Reduction Applications[J].IEEE Transactions on Antennas and Propagation,2015,63(2):823-828.
[5] Zhai Guohua,Chen Z N,Qing X.Mutual Coupling Reduction of a Closely Spaced Four-Element MIMO Antenna System Using Discrete Mushrooms[J].IEEE Transactions on Microwave Theory and Techniques,2016,64(10):3060-3067.
[6] Wei Kun,Li Jian-Ying,Wang Ling,et al.Mutual Coupling Reduction by Novel Fractal Defected Ground Structure Bandgap Filter[J].IEEE Transactions on Antennas and Propagation,2016,64(10):4328-4335.
[7] Park C H,Son H W.Mutual Coupling Reduction between Closely Spaced Microstrip Antennas by Means of H-Shaped Conducting Wall[J].Electronics Letters,2016,52(13):1093-1094.
[8] Lee H M,Lee H S.Isolation Improvement Technique for Two Closely Spaced Loop Antennas Using MTM Absorber Cells[J].International Journal of Antennas and Propagation,2012:736065.
[9] Xu H X,Wang G M,Qi M Q.Hilbert-Shaped Magnetic Waveguided Metamaterials for Electromagnetic Coupling Reduction of Microstrip Antenna Array[J].IEEE Transactions on Magnetics,2013,49(4):1526-1529.
[10] Zeeshan Qamar,Umair Naeem,Shahid A Khan,et al.Mutual Coupling Reduction for High-Performance Densely Packed Patch Antenna Arrays on Finite Substrate[J].IEEE Transactions on Antennas and Propagation,2016,64(5):1653-1660.
[11] Abdolmehdi Dadgarpour,Behnam Zarghooni,Bal S Virdee,et al.Mutual Coupling Reduction in Dielectric Resonator Antennas Using Metasurface Shield for 60-GHz MIMO Systems[J].IEEE Antennas and Wireless Propagation Letters,2017,16:477-480.
[12] Reza Karimian,Arun Kesavan,Mourad Nedil,et al.Low-Mutual-Coupling 60-GHz MIMO Antenna System with Frequency Selective Surface Wall[J].IEEE Antennas and Wireless Propagation Letters,2017,16:373-376.
[13] Bernety H M,Yakovlev A B.Reduction of Mutual Coupling between Neighboring Strip Dipole Antennas Using Confocal Elliptical Metasurface Cloaks[J].IEEE Transactions on Antennas and Propagation,2015,63(4):1554-1563.
[14] Hwang J N,Chung S J.Isolation Enhancement between Two Packed Antennas with Coupling Element[J].IEEE Antennas and Wireless Propagation Letters,2011,10(10):1263-1266.
[15] Zhang Sh,Khan S N,HeS.Reducing Mutual Coupling for all Extremely Closely-Packed Tunable Dual-Element PIFA Array Through a Resonant Slot Antenna Formed In Between[J].IEEE Transactions on Antennas and Propagation,2010,58(8):2771-2776.
[16] Xia R L,Qu S W,Li P F,et al.An Efficient Decoupling Feeding Network for Microstrip Antenna Array[J].IEEE Antennas and Wireless Propagation Letters,2015,14:871-874.
[17] Gao Yue,Ma Runbo,Wang Yapeng,et al.Stacked Patch Antenna with Dual-Polarization and Low Mutual Coupling for Massive MIMO[J].IEEE Transactions on Antennas and Propagation,2016,64(10):4544-4549.
[18] Sun Xu-bao,Cao Mao Yong.Low Mutual Coupling Antenna Array for WLAN Application[J].Electronics Letters,2017,53(6):368-370.
[19] 郝芸,叶喜红,张志利.紧凑型4×4单元超宽带MIMO缝隙天线设计[J].电子器件,2018,41(3):582-586.
[2] Ghosh S,Tran T N,Le-Ngoc T.Dual-Layer EBG-Based Miniaturized Multi-Element Antenna for MIMO Systems[J].IEEE Transactions on Antennas and Propagation,2014,62(8):3985-3997.
[3] Li Q,Feresidis A P,Mavridou M,et al.Miniaturized Double-Layer EBG Structures for Broadband Mutual Coupling Reduction Between UWB Monopoles[J].IEEE Transactions on Antennas and Propagation,2015,63(3):1168-1171.
[4] Al-Hasan M J,Denidni T A,Sebak A R.Millimeter-Wave Compact EBG Structure for Mutual Coupling Reduction Applications[J].IEEE Transactions on Antennas and Propagation,2015,63(2):823-828.
[5] Zhai Guohua,Chen Z N,Qing X.Mutual Coupling Reduction of a Closely Spaced Four-Element MIMO Antenna System Using Discrete Mushrooms[J].IEEE Transactions on Microwave Theory and Techniques,2016,64(10):3060-3067.
[6] Wei Kun,Li Jian-Ying,Wang Ling,et al.Mutual Coupling Reduction by Novel Fractal Defected Ground Structure Bandgap Filter[J].IEEE Transactions on Antennas and Propagation,2016,64(10):4328-4335.
[7] Park C H,Son H W.Mutual Coupling Reduction between Closely Spaced Microstrip Antennas by Means of H-Shaped Conducting Wall[J].Electronics Letters,2016,52(13):1093-1094.
[8] Lee H M,Lee H S.Isolation Improvement Technique for Two Closely Spaced Loop Antennas Using MTM Absorber Cells[J].International Journal of Antennas and Propagation,2012:736065.
[9] Xu H X,Wang G M,Qi M Q.Hilbert-Shaped Magnetic Waveguided Metamaterials for Electromagnetic Coupling Reduction of Microstrip Antenna Array[J].IEEE Transactions on Magnetics,2013,49(4):1526-1529.
[10] Zeeshan Qamar,Umair Naeem,Shahid A Khan,et al.Mutual Coupling Reduction for High-Performance Densely Packed Patch Antenna Arrays on Finite Substrate[J].IEEE Transactions on Antennas and Propagation,2016,64(5):1653-1660.
[11] Abdolmehdi Dadgarpour,Behnam Zarghooni,Bal S Virdee,et al.Mutual Coupling Reduction in Dielectric Resonator Antennas Using Metasurface Shield for 60-GHz MIMO Systems[J].IEEE Antennas and Wireless Propagation Letters,2017,16:477-480.
[12] Reza Karimian,Arun Kesavan,Mourad Nedil,et al.Low-Mutual-Coupling 60-GHz MIMO Antenna System with Frequency Selective Surface Wall[J].IEEE Antennas and Wireless Propagation Letters,2017,16:373-376.
[13] Bernety H M,Yakovlev A B.Reduction of Mutual Coupling between Neighboring Strip Dipole Antennas Using Confocal Elliptical Metasurface Cloaks[J].IEEE Transactions on Antennas and Propagation,2015,63(4):1554-1563.
[14] Hwang J N,Chung S J.Isolation Enhancement between Two Packed Antennas with Coupling Element[J].IEEE Antennas and Wireless Propagation Letters,2011,10(10):1263-1266.
[15] Zhang Sh,Khan S N,HeS.Reducing Mutual Coupling for all Extremely Closely-Packed Tunable Dual-Element PIFA Array Through a Resonant Slot Antenna Formed In Between[J].IEEE Transactions on Antennas and Propagation,2010,58(8):2771-2776.
[16] Xia R L,Qu S W,Li P F,et al.An Efficient Decoupling Feeding Network for Microstrip Antenna Array[J].IEEE Antennas and Wireless Propagation Letters,2015,14:871-874.
[17] Gao Yue,Ma Runbo,Wang Yapeng,et al.Stacked Patch Antenna with Dual-Polarization and Low Mutual Coupling for Massive MIMO[J].IEEE Transactions on Antennas and Propagation,2016,64(10):4544-4549.
[18] Sun Xu-bao,Cao Mao Yong.Low Mutual Coupling Antenna Array for WLAN Application[J].Electronics Letters,2017,53(6):368-370.
[19] 郝芸,叶喜红,张志利.紧凑型4×4单元超宽带MIMO缝隙天线设计[J].电子器件,2018,41(3):582-586.