多層微帶貼片天線單元和陣列設計
design of multi-layer microstrip antenna and arrays
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摘要: 該文通過結(jié)合經(jīng)驗公式和全波分析法,設計了一種電容補償雙層貼片、四層介質(zhì)的微帶貼片天線單元,該單元天線在頻率為995～1125MHz的范圍內(nèi),在駐波比SWR1.5的情況下,相對阻抗帶寬達到12.26％的工程要求。此外,該文給出由該單元天線組成的216天線陣以及天線陣的駐波比的實測結(jié)果,最后給出天線陣的各單元排列方式和單元之間的互耦特性曲線的實測結(jié)果。
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關(guān)鍵詞:
- 微帶天線; 天線陣; 駐波比; 互耦
Abstract: A stacked double-patch and four-layer substrate microstrip antenna with the capacitance compensation probe feed is designed by combining the experimental formulae and the full-wave method. The relative impedance bandwidth of this microstrip antenna reaches up to 12.26% in the frequency band between 995MHz and 1125MHz under the condition that SWR is less than 1.5. In addition, a 2*16 array composed by this kind of microstrip antenna is presented and the experimental results of the SWR are given too. Finally, the arrangement of elements in the antenna array and the experimental results of the mutual coupling between elements are given. -
D.M. Pozar, B. Kaufman, Increasing the bandwidth of a microstrip antenna by proximity coupling, Electronics Letters, 1987, 23(9), 368 369.[2]徐健,重疊微帶貼片天線的理論分析與實驗研究,[博士論文],北京,北京理工大學,1993,9 ［3］劉章發(fā),寬頻帶微帶天線的設計與相控陣掃描特性的研究,[博士論文],北京,北京理工大學,1996,7.[3]劉庭華,雙層微帶貼片天線單元的實驗研究,現(xiàn)代雷達,1997,19(3),54-60.[4]Naftali Herscovici, A wide-band single-layer patch antenna, IEEE Trans. on Antennas Propagat.,1998, AP-46(4), 1108-1111.[5]鐘順時,微帶天線的理論與應用,西安,西安電子科技大學出版社,1991,11-16.[6]李世智,電磁輻射與散射問題的矩量法,北京,電子工業(yè)出版社,1985,130-138. -
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