Analysis of coupling between cavity-backed slot antennas: FDTD, FEM and measurements

IEEE Antennas and Propagation Society International Symposium. 1999 Digest. Held in conjunction with: USNC/URSI National Radio Science Meeting (Cat. No.99CH37010) Pub Date : 1999-07-11 DOI:10.1109/APS.1999.789206

S. Georgakopoulos, A. C. Polycarpou, C. Balanis, C. Birtcher

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引用次数: 2

Abstract

Cavity-backed slot antennas have been widely used in different types of applications within the microwave band, including radar, satellite communications, mobile telephony, broadcast TV, and aircraft/spacecraft communications. They are relatively easy to manufacture, light-weight and often small in size. Their low profile is an important characteristic, especially for aircraft, missile and spacecraft, applications, because they can be flush-mounted on the surface of airborne vehicles without affecting the vehicle's aerodynamic profile. In this paper, the coupling of cavity-backed slot antennas is analyzed by using the finite-difference time-domain (FDTD) method and the finite element method (FEM). Also, parametric studies are performed to examine the dependence of the coupling on the frequency of operation and the separation between the apertures. The numerical results are validated by comparison with measurements.

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腔背缝隙天线耦合分析:时域有限差分法、有限元法和测量

空腔槽天线已广泛应用于微波频段内的不同类型应用，包括雷达、卫星通信、移动电话、广播电视和飞机/航天器通信。它们相对容易制造，重量轻，体积小。它们的低轮廓是一个重要的特点，特别是在飞机、导弹和航天器的应用中，因为它们可以平装在机载飞行器的表面，而不会影响飞行器的气动外形。本文采用时域有限差分法(FDTD)和有限元法(FEM)对腔背槽天线的耦合进行了分析。此外，还进行了参数研究，以检查耦合对操作频率和孔径之间的分离的依赖性。数值计算结果与实测结果进行了比较。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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IEEE Antennas and Propagation Society International Symposium. 1999 Digest. Held in conjunction with: USNC/URSI National Radio Science Meeting (Cat. No.99CH37010)

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