AMiBA：宽带外差CMB干涉测量
AMiBA: Broadband Heterodyne CMB Interferometry
摘要：
鼠疫耶尔森T. Lee Array for Microwave Background（AMiBA）报道了通过Sunyaev Zel'dovich效应探测星系团的第一个科学结果。科学目标需要小的反射器以便对大尺度结构进行采样（20 '），而干涉测量提供适度的分辨率（2'）。在这些约束条件下，我们通过利用与86- 102 GHz的大气窗口匹配的最大可能的连续带宽来设计最佳灵敏度，具有双极化。设计了一种新的宽带模拟相关器，该相关器易于扩展到更多的干涉仪单元。MMIC技术在整个过程中被尽可能多地使用，以使组件小型化并提高大规模生产。这些设计将在其他即将到来的天文学项目中得到应用。AMiBA自2006年以来一直在运营，我们正在将阵列从7个扩展到13个元素。
英文摘要：
The Y. T. Lee Array for Microwave Background (AMiBA) has reported the first science results on the detection of galaxy clusters via the Sunyaev Zel'dovich effect. The science objectives required small reflectors in order to sample large scale structures (20') while interferometry provided modest resolutions (2'). With these constraints, we designed for the best sensitivity by utilizing the maximum possible continuum bandwidth matched to the atmospheric window at 86-102GHz, with dual polarizations. A novel wide-band analog correlator was designed that is easily expandable for more interferometer elements. MMIC technology was used throughout as much as possible in order to miniaturize the components and to enhance mass production. These designs will find application in other upcoming astronomy projects. AMiBA is now in operations since 2006, and we are in the process to expand the array from 7 to 13 elements.
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