PBG結(jié)構(gòu)在微帶有源天線中的應(yīng)用
The application of PBG structure to microwave active antenna
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摘要: 微帶有源天線的應(yīng)用具有降低通信系統(tǒng)的復(fù)雜度、減小系統(tǒng)尺寸的優(yōu)點(diǎn)，但由于天線與有源器件集成在一起，有源器件產(chǎn)生的諧波可以引起天線的偽輻射。該文研究了PBG(Photonic Band-Gap)結(jié)構(gòu)在有源天線中的應(yīng)用。計(jì)算和實(shí)驗(yàn)結(jié)果都表明PBG結(jié)構(gòu)的應(yīng)用可以大大降低諧波引起的輻射，從而改善了系統(tǒng)的性能。
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關(guān)鍵詞:
- 有源天線; 偽輻射; 光子晶體; PBG結(jié)構(gòu); FDTD
Abstract: In communication systems, the application of microstrip active antenna is useful for the simplification and downsizing of the system. But because the antenna is integrated with active devices, the harmonics produced by the active devices can result in the spurious radiation of the antenna. In this paper, the application of PBG(Photonic Band-Gap) structure to the active antenna is studied, and the calculated result and experimental result all indicate that the application of PBG structure can drastically diminish the radiation of harmonics, so the performance of system is improved. -
V. Radisic, Yongxi Qian, R. Coccioli, et al., Novel 2-D photonic bandgap structure for microstrip lines, IEEE Microwave Guided Wave Lett., 1998, 8(2), 69-71.[2]Yasushi Horii, Makoto Tsutsumi, Harmonic control by photonic bandgap on microstrip patch antenna, IEEE Microwave Guided Wave Lett. , 1999, 9(1), 13-15.[3]Joseph S. Colburn, Yahya Rahmat-Samii, Patch antennas on externally perforated high dielectric constant substrates, IEEE Trans. on Antennas Propagation, 1999, 47(12), 1785-1794. -
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