基于SIW的宽频带喇叭天线设计
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摘要
设计了一款具有宽频带高前后比的基片集成波导H面喇叭天线。该天线通过在基片集成波导喇叭的口径前端加载半圆形介质基片和半圆形金属片结构,实现了天线阻抗带宽的展宽及天线前后比的提高,此时天线整体尺寸为1.6λ×3.2λ mm。仿真结果表明,天线S_(11)<-10 dB的频率范围为22.8～28.2 GHz,相对带宽达到21%;在23～26 GHz的频率范围内,天线前后比始终大于13 dB,天线最大增益能够达到12.2 dB,且在较宽频率范围内天线增益保持稳定。相较于其他基片集成波导喇叭天线,该天线结构更加简单,具有更好的带宽、增益及前后比。
A substrate integrated waveguide(SIW) H-plane horn antenna with wide band and high front-to-back ratio(FTBR) was designed. In order to improve the matching condition between horn aperture and free space, an integrated solution is suggested, which is based on a semi-circular dielectric substrate and a metal piece along the horn aperture. The size of the antenna is 1.6λ×3.2λ mm, the impedance bandwidth is broaden and the FTBR is improved. The simulated results show that the proposed antenna operates with 21% impedance bandwidth ranging from 22.8 GHz to 28.2 GHz with S_(11) below-10 dB. The FTBR is greater than 13 dB at the frequency from 23 GHz to 26 GHz. The maximum gain of this antenna can reach 12.2 dB and the gain which have a considerable character can keep stable in a wide frequency range. Compared with other SIW horn antennas, this antenna has a simpler structure, and it is better in terms of wide bandwidth, higher gains and FTBR.
A substrate integrated waveguide(SIW) H-plane horn antenna with wide band and high front-to-back ratio(FTBR) was designed. In order to improve the matching condition between horn aperture and free space, an integrated solution is suggested, which is based on a semi-circular dielectric substrate and a metal piece along the horn aperture. The size of the antenna is 1.6λ×3.2λ mm, the impedance bandwidth is broaden and the FTBR is improved. The simulated results show that the proposed antenna operates with 21% impedance bandwidth ranging from 22.8 GHz to 28.2 GHz with S_(11) below-10 dB. The FTBR is greater than 13 dB at the frequency from 23 GHz to 26 GHz. The maximum gain of this antenna can reach 12.2 dB and the gain which have a considerable character can keep stable in a wide frequency range. Compared with other SIW horn antennas, this antenna has a simpler structure, and it is better in terms of wide bandwidth, higher gains and FTBR.
引文
[1] 彭章友,朱晶华,马骁颖,等.汽车防刮蹭雷达中的MIMO反射波到达角估计方法[J].电子测量技术,2017,40(9):99-103.
[2] 陆兴华,彭意达.基于回波探测的汽车防撞系统智能测距方法[J].电子测量技术,2016,39(6):126-129.
[3] 郭婧,罗俊忻,王占平.K波段高增益低副瓣微带天线阵的设计[J].火控雷达技术,2014,43(4):82-85,90.
[4] ESQUIUS-MOROTE M, Fuchs B, Z(U)RCHER J F, et al. Novel Thin and Compact H-Plane SIW Horn Antenna[J]. IEEE Transactions on Antennas & Propagation, 2013, 61(6):2911-2920.
[5] CAI Y, QIAN Z, CAO W, et al. Compact wideband SIW horn antenna fed by elevated-CPW structure[J]. IEEE Transactions on Antennas & Propagation, 2015, 63(10):4551-4557.
[6] BAYAT-MAKOU N, SORKHERIZI M S, KISHK A A. Substrate integrated horn antenna loaded with open parallel transitions[J]. IEEE Antennas & Wireless Propagation Letters, 2017, 16: 349-351.
[7] CHE W,DENG K,WANG D, et al. Analytical equivalence between substrate-integrated waveguide and rectangular waveguide[J]. Microwaves, Antennas and Propagation, IET,2008, 2(1):35-41.
[8] MALLAHZADEH A R, ESFANDIARPOUR S. Wideband H-plane horn antenna based on ridge substrate integrated waveguide (RSIW)[J]. IEEE Antennas & Wireless Propagation Letters, 2012, 11: 85-88.
[9] WANG L, GARCIA-VIGUERAS M, ALVAREZ-FOLGUEIRAS M. Wideband H-plane dielectric horn antenna[J]. IET Microwaves Antennas & Propagation, 2017, 11(12): 1695-1701.
[10] WANG J, LI Y, GE L, et al. Wideband dipole array loaded substrate integrated H-plane horn antenna for millimeter waves[J]. IEEE Transactions on Antennas & Propagation, 2017, 65(10): 5211-5219.
[11] BAYAT-MAKOU N, KISHK A A. Substrate integrated horn antenna with uniform aperture distribution[J]. IEEE Transactions on Antennas and Propagation, 2017, 65(2): 514-520.
[12] CHE W, FU B, YAO P, et al. Substrate integrated waveguide horn antenna with dielectric lens[J]. Microwave and Optical Technology Letters, 2007, 49(1): 168-170.
[13] WANG H, FANG D, ZHANG B, et al. Dielectric loaded substrate integrated waveguide (SIW) H-plane horn antennas[J]. IEEE Transactions on Antennas and Propagation, 2010, 58(3): 640-647.
[14] GONG L, YUK-CHAN K, RAMER R. Substrate integrated waveguide H-plane horn antenna with improved front-to-back ratio and reduced sidelobe level[J]. IEEE Antennas & Wireless Propagation Letters, 2016, 15: 1835-1838.
[15] LUO Y, BORNEMANN J. Substrate integrated waveguide horn antenna on thin substrate with back-lobe suppression and its application to arrays[J]. IEEE Antennas & Wireless Propagation Letters, 2017, 16: 2622-2625.
[2] 陆兴华,彭意达.基于回波探测的汽车防撞系统智能测距方法[J].电子测量技术,2016,39(6):126-129.
[3] 郭婧,罗俊忻,王占平.K波段高增益低副瓣微带天线阵的设计[J].火控雷达技术,2014,43(4):82-85,90.
[4] ESQUIUS-MOROTE M, Fuchs B, Z(U)RCHER J F, et al. Novel Thin and Compact H-Plane SIW Horn Antenna[J]. IEEE Transactions on Antennas & Propagation, 2013, 61(6):2911-2920.
[5] CAI Y, QIAN Z, CAO W, et al. Compact wideband SIW horn antenna fed by elevated-CPW structure[J]. IEEE Transactions on Antennas & Propagation, 2015, 63(10):4551-4557.
[6] BAYAT-MAKOU N, SORKHERIZI M S, KISHK A A. Substrate integrated horn antenna loaded with open parallel transitions[J]. IEEE Antennas & Wireless Propagation Letters, 2017, 16: 349-351.
[7] CHE W,DENG K,WANG D, et al. Analytical equivalence between substrate-integrated waveguide and rectangular waveguide[J]. Microwaves, Antennas and Propagation, IET,2008, 2(1):35-41.
[8] MALLAHZADEH A R, ESFANDIARPOUR S. Wideband H-plane horn antenna based on ridge substrate integrated waveguide (RSIW)[J]. IEEE Antennas & Wireless Propagation Letters, 2012, 11: 85-88.
[9] WANG L, GARCIA-VIGUERAS M, ALVAREZ-FOLGUEIRAS M. Wideband H-plane dielectric horn antenna[J]. IET Microwaves Antennas & Propagation, 2017, 11(12): 1695-1701.
[10] WANG J, LI Y, GE L, et al. Wideband dipole array loaded substrate integrated H-plane horn antenna for millimeter waves[J]. IEEE Transactions on Antennas & Propagation, 2017, 65(10): 5211-5219.
[11] BAYAT-MAKOU N, KISHK A A. Substrate integrated horn antenna with uniform aperture distribution[J]. IEEE Transactions on Antennas and Propagation, 2017, 65(2): 514-520.
[12] CHE W, FU B, YAO P, et al. Substrate integrated waveguide horn antenna with dielectric lens[J]. Microwave and Optical Technology Letters, 2007, 49(1): 168-170.
[13] WANG H, FANG D, ZHANG B, et al. Dielectric loaded substrate integrated waveguide (SIW) H-plane horn antennas[J]. IEEE Transactions on Antennas and Propagation, 2010, 58(3): 640-647.
[14] GONG L, YUK-CHAN K, RAMER R. Substrate integrated waveguide H-plane horn antenna with improved front-to-back ratio and reduced sidelobe level[J]. IEEE Antennas & Wireless Propagation Letters, 2016, 15: 1835-1838.
[15] LUO Y, BORNEMANN J. Substrate integrated waveguide horn antenna on thin substrate with back-lobe suppression and its application to arrays[J]. IEEE Antennas & Wireless Propagation Letters, 2017, 16: 2622-2625.