Gain limits of phase compensated conformal antenna arrays on non-conducting spherical surfaces using the projection method

IEEE International Conference on Wireless for Space and Extreme Environments Pub Date : 2013-11-01 DOI:10.1109/WISEE.2013.6737555

B. Ijaz, A. Sanyal, Alfonso Mendoza-Radal, Sayan Roy, I. Ullah, M. Reich, D. Dawn, B. Braaten, N. Chamberlain, D. Anagnostou

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引用次数: 8

Abstract

Previously, it has been shown that the projection method can be used as an effective tool to compute the appropriate phase compensation of a conformal antenna array on a spherical surface. In this paper, the projection method is used to study the gain limitations of a phase-compensated six-element conformal microstrip antenna array on non-conducting spherical surfaces. As a metric for comparison, the computed gain of the phase-compensated conformal array is compared to the gain of a six-element reference antenna on a flat surface with the same inter-element spacing and operating frequency. To validate these computations, a conformal phased-array antenna consisting of six individual microstrip patches, voltage controlled phase shifters and a power divider was assembled and tested at 2.22 GHz. Overall, it is shown how much less the gain of the phase-compensated antenna is than the reference antenna for various radius values of the sphere.

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投影法在非导电球面上相位补偿共形天线阵列的增益限制

以往的研究表明，投影法可以作为一种有效的工具来计算球面上共形天线阵的相位补偿。本文采用投影法研究了相位补偿六元共形微带天线阵在非导电球面上的增益限制。作为比较指标，将相位补偿共形阵列的计算增益与具有相同单元间距和工作频率的平面上的六单元参考天线的增益进行了比较。为了验证这些计算，组装了一个共形相控阵天线，该天线由六个单独的微带贴片、压控移相器和功率分配器组成，并在2.22 GHz下进行了测试。总的来说，它显示了相位补偿天线的增益是多少比参考天线的不同半径值的球。

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 International Conference on Wireless for Space and Extreme Environments

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