|
|
Journal of Antennas 2020
一种结构简单的滤波短路贴片天线
|
Abstract:
微带天线广泛应用于军事和民用领域，将滤波功能集成到该类天线中，实现带外信号抑制的同时可有效减小射频前端的总体尺寸。本文在微带贴片天线的基础上，设计了一种结构简单的滤波短路贴片天线。该天线由一个刻有J形缝隙的短路辐射贴片和一个短路寄生贴片组成。J形缝隙与寄生贴片分别在低/高频带引入辐射零点，以实现天线的滤波响应。测试结果表明，该天线的阻抗带宽3.7% (4.76~4.94 GHz)，带内增益约5.0 dBi，E面半功率波束宽度约100？，带外辐射抑制大于12.6 dB。
Microstrip antennas are widely used in military and civilian fields, the filtering function is inte-grated into this type of antenna, which can achieve out-of-band signal suppression and effectively reduce the overall size of the RF front-end. In this paper, a simple filtering shorted-patch antenna based on the microstrip patch antenna is designed. The antenna consists of a shorted driven patch with J-shaped slots and a shorted parasitic patch. Filtering response is obtained because of the ra-diation nulls introduced by J-shaped slots and the parasitic patch. Measured results show that the impedance bandwidth of the antenna is 3.7% (4.76~4.94 GHz), the in-band gain is about 5.0 dBi, and the E-plane half-power beamwidth is about 100？, the out-of-band radiation suppression is more than 12.6 dB.
| [1] | Cao, Y.F., Zhang, Y. and Zhang, X.Y. (2020) Filtering Antennas: From Innovative Concepts to Industrial Applications. Frontiers of Information Technology & Electronic Engineering, 21, 116-127. https://doi.org/10.1631/FITEE.1900474 |
| [2] | 曹云飞, 杨圣杰, 章秀银. 面向5G移动通信的滤波天线及阵列[J]. 中国科学基金, 2020, 34(2): 154-162. |
| [3] | Balanis, C.A. (2016) Antenna Theory: Analysis and Design. 5th Edi-tion, John Wiley & Sons, Inc., Hoboken, 783-784. |
| [4] | Jin, J.Y., Liao, S.W. and Xue, Q. (2018) Design of Filter-ing-Radiating Patch Antennas with Tunable Radiation Nulls for High Selectivity. IEEE Transactions on Antennas and Propagation, 66, 2125-2130.
https://doi.org/10.1109/TAP.2018.2804661 |
| [5] | Qian, J.F., Chen, F.C., Chu, Q.X., et al. (2018) A Novel Electric and Magnetic Gap-Coupled Broadband Patch Antenna with Improved Selectivity and Its Application in MIMO System. IEEE Transactions on Antennas and Propagation, 66, 5625-5629. https://doi.org/10.1109/TAP.2018.2860129 |
| [6] | Hu, P.F., Pan, Y.M., Zhang, X.Y., et al. (2019) A Filtering Patch Antenna with Reconfigurable Frequency and Bandwidth Using F-Shaped Probe. IEEE Transactions on Antennas and Propagation, 67, 121-130.
https://doi.org/10.1109/TAP.2018.2877301 |
| [7] | Yang, W.C., Zhang, Y.Q., Che, W.Q., et al. (2019) A Simple, Compact Filtering Patch Antenna Based on Mode Analysis With Wide Out-of-Band Suppression. IEEE Transactions on Antennas and Propagation, 67, 6244-6253.
https://doi.org/10.1109/TAP.2019.2922770 |
| [8] | Lin, C.-K. and Chung, S.-J. (2011) A Filtering Microstrip Anten-na Array. IEEE Transactions on Microwave Theory and Techniques, 59, 2856-2863. https://doi.org/10.1109/TMTT.2011.2160986 |
| [9] | Wu, W.J., Yin, Y.Z., Zuo, S.L., et al. (2011) A New Compact Filter-Antenna for Modern Wireless Communication Systems. IEEE Antennas and Wireless Propagation Letters, 10, 1131-1134.
https://doi.org/10.1109/LAWP.2011.2171469 |
| [10] | Zhang, Y., Zhang, X.Y. and Pan, Y.M. (2018) Low-Profile Planar Filtering Dipole Antenna with Omnidirectional Radiation Pattern. IEEE Transactions on Antennas and Propaga-tion, 66, 1124-1132.
https://doi.org/10.1109/TAP.2018.2790169 |
| [11] | Hu, P.F, Pan, Y.M., Zhang, X.Y. and Hu, B.J. (2019) A Compact Quasi-Isotropic Dielectric Resonator Antenna With Filtering Response. IEEE Transactions on Antennas and Propaga-tion, 67, 1294-1299.
https://doi.org/10.1109/TAP.2018.2883611 |
| [12] | Zhang, X.Y., Duan, W. and Pan, Y.M. (2015) High-Gain Filter-ing Patch Antenna without Extra Circuit. IEEE Transactions on Antennas and Propagation, 63, 5883-5888. https://doi.org/10.1109/TAP.2015.2481484 |
| [13] | Yang, D., Zhai, H.Q., Guo, C.Z. and Li, H.K. (2020) A Compact Single-Layer Wideband Microstrip Antenna With Filtering Performance. IEEE Antennas and Wireless Propagation Let-ters, 19, 801-805.
https://doi.org/10.1109/LAWP.2020.2980631 |
| [14] | Wood, C. (1980) Improved Bandwidth of Microstrip Antennas Using Parasitic Elements. IEE Proceedings H (Microwaves, Optics and Antennas), 127, 231-234. https://doi.org/10.1049/ip-h-1.1980.0049 |
| [15] | Liu, N.W., Zhu, L., Fu, G., et al. (2018) A Low Profile Short-ed-Patch Antenna with Enhanced Bandwidth and Reduced H-Plane Cross-Polarization. IEEE Transactions on Antennas and Propagation, 66, 5602-5607.
https://doi.org/10.1109/TAP.2018.2855730 |
