中图分类号： TN82
文献标识码： A
DOI：10.16157/j.issn.0258-7998.200493
中文引用格式： 刘雪颖. 一种低成本Ka波段瓦片式有源相控阵天线[J].电子技术应用，2020，46(12)：1-4，8.
英文引用格式： Liu Xueying. A low-cost millimeter wave Ka-band active phased array antenna[J]. Application of Electronic Technique，2020，6(12)：1-4，8.

A low-cost millimeter wave Ka-band active phased array antenna

Abstract： In this paper, a low-cost, tiled millimeter wave active phased array antenna(APAA) is presented. The APAA integrates CMOS multi-function chips, GaAs chips, antenna array and power division network on a microwave multilayer print circuit board by a three-dimensional integration technology, then the height of the APAA has sharply decrease. The RF part of the APAA is interconnected with the frequency conversion module, wave control module and power supply module through the vertical interconnection of radio frequency and low frequency pins. The measured results show that the APPA can achieve 7.7% bandwidth in a scanning range of ± 25° in all planes in Ka-band, and the gain changes smoothly in the scanning range, less than 1 dB gain variation, and the sidelobe level is better than 14.5 dB. The APPA has low profile of 52 mm, ERIP is larger than 66 dBm, G/T is better than 7.5 dB/K, and the transceiver switch time is less than 150 ns. In summary, this tiled active APAA has characteristics of high integration, miniaturization and low cost，and has high engineering application value.

Key words : low-cost；tiled；active phased array antenna；Ka-band；CMOS multi-function chips