N層介質(zhì)覆蓋矩形微帶天線的分析
ANALYSIS OF RECTANGULAR MICROSTRIP PATCH ANTENNAS COVERED WITH N-LAYER DIELECTRIC
-
摘要: 本文給出了在三維電流源激勵(lì)的情況下,N層介質(zhì)覆蓋微帶天線結(jié)構(gòu)的譜域格林函數(shù)的新的解析公式,建立了分析這類天線的譜域全波分析模型,并利用有效的數(shù)值技術(shù)求解出積分方程,得到了天線的貼片表面電流,進(jìn)而可得到天線的輸入電壓駐波比和輻射方向圖等有關(guān)特性參數(shù).實(shí)驗(yàn)結(jié)果證實(shí)了理論計(jì)算的正確性.
-
關(guān)鍵詞:
- 微帶天線; N層介質(zhì)覆蓋; 全波分析; 譜域格林函數(shù)
Abstract: A generalized spectral Green s function formulation of N-layer superstrata structure is given with three dimension sources, which is a set of closed form formulas. A full-wave analysis model for rectangular microstrip antennas covered with N-layer dielectric has been established by using the above spectral Green s function. The unknown surface current density on the microstrip patch for such structure is found as the solution of an integral equation. The input VSWR and radiation patterns of antenna are also obtained. The numerical results have been verified by the experimental results. -
Lin C S, Zhong S S, Shi J H, et al. Gain enhancemet technique for microstrip antenna. 1989 IEEE AP-S Int. Symp., San Jose: June 1989, 454-457.[2]Afzalzadeh R, Karekar R. Effect of dielective protection superstrate on radiation pattern of microstrip patch antenna[J].Electron. Lett.1991, 27(13):1218-1219[3]Afzalzadeh R, Karekar R. X-band directive single microstrip patch antenna using dielectric parasite.[4]Electron. Lett., 1992, 28(1): 17-19.[5]吳祥應(yīng),劉剛,鐘順時(shí),張野.多層介質(zhì)覆蓋矩形微帶天線諧振頻率的精確計(jì)算.電子學(xué)報(bào),1994, 22(12): 40-45.[6]Zhong S S, Liu G. Closed form expression for resonant frequency of rectangular patch antennas with multidielectric layers. IEEE Trans. on AP, 1994, AP-42(9): 1360-1363.[7]Zhong S S, Liu G, Stassevich V. Improved transmission line model for input impedance of rect-angular microstrip antennas with multi-dielectric layers. IEEE Antennas and Propagation Society[8]International Symposium, Seattle, Washington, USA: 1994, 492-495.[9]Das N K, Pozar D M. A generalized spectral-domain Greens function for multilayer dielectric sub-[10]strates with application to multilayer transmission lines. IEEE Trans. on MTT, 1987, MTT-35(3): 326-335.[11]劉剛.多介質(zhì)層單頻和雙頻微帶天線研究:[博士學(xué)位論文].上海:上海大學(xué),1995年1月. -
計(jì)量
- 文章訪問數(shù): 2236
- HTML全文瀏覽量: 151
- PDF下載量: 360
- 被引次數(shù): 0
下載:
