Array Calibration and Health/Status Check Using a "Reverse" Transmit/Receive Module

被引：0
|
作者：
Champion, Michelle [1 ]
Tomasic, Boris [1 ]
Schmier, Robert [2 ]
Bishop, Diane [3 ]
Radford, Jesse [3 ]
Bharj, Sarjit [4 ]
机构：
[1] US Air Force, Res Lab, Sensors Directorate, Wright Patterson AFB, OH 45433 USA
[2] Alpha Omega Electromagnet LLC, Arnold, MD 21012 USA
[3] Custom Mfg & Engn Inc, Pinellas Park, FL 33781 USA
[4] Princeton Microwave Technol Inc, Mercerville, NJ 08619 USA
来源：
2013 IEEE INTERNATIONAL SYMPOSIUM ON PHASED ARRAY SYSTEMS AND TECHNOLOGY | 2013年
关键词：
phased array; calibration; transmit/receive module;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A method for in situ evaluation of the health and status of individual array elements within a large phased array has been developed and demonstrated at the subarray level. The technique utilizes a special radiating element located in the center of each subarray. This center element is fed with a "reverse" T/R module that operates in the opposite sense of the regular elements in the subarray; that is, for dual-band communications arrays, it transmits at the receive frequency and receives at the transmit frequency of the other elements in the array. A similar technique can also be applied to arrays for radar. By operating in this manner, the "reverse" element can be used to self-test the regular elements in the subarray, without requiring an external RF source. This method allows for detection of element faults and failures so that error correction or repairs can be applied without significant impact to operation
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页码：642 / 648
页数：7
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