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arXiv · 1705.04435

Simulation and Testing of a Linear Array of Modified Four-Square Feed Antennas for the Tianlai Cylindrical Radio Telescope

Aleksander J. Cianciara·Christopher J. Anderson·Xuelei Chen·Zhiping Chen·Jingchao Geng·Jixia Li·Chao Liu·Tao Liu·Wing Lu·Jeffrey B. Peterson·Huli Shi·Catherine N. Steffel·Albert Stebbins·Thomas Stucky·Shijie Sun·Peter T. Timbie·Yougang Wang·Fengquan Wu·Juyong Zhang
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Abstract

A wide bandwidth, dual polarized, modified four-square antenna is presented as a feed antenna for radio astronomical measurements. A linear array of these antennas is used as a line-feed for cylindrical reflectors for Tianlai, a radio interferometer designed for 21~cm intensity mapping. Simulations of the feed antenna beam patterns and scattering parameters are compared to experimental results at multiple frequencies across the 650 - 1420 MHz range. Simulations of the beam patterns of the combined feed array/reflector are presented as well.

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Aleksander J. Cianciara, Christopher J. Anderson, Xuelei Chen, Zhiping Chen, Jingchao Geng, Jixia Li, Chao Liu, Tao Liu, Wing Lu, Jeffrey B. Peterson, Huli Shi, Catherine N. Steffel, Albert Stebbins, Thomas Stucky, Shijie Sun, Peter T. Timbie, Yougang Wang, Fengquan Wu, Juyong Zhang. 2017-05-12. Simulation and Testing of a Linear Array of Modified Four-Square Feed Antennas for the Tianlai Cylindrical Radio Telescope. https://arxiv.org/abs/1705.04435

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