4.5 Article

Design of Ka-Band Phased Array Antenna with Calibration Function

期刊

CMC-COMPUTERS MATERIALS & CONTINUA
卷 74, 期 3, 页码 6251-6261

出版社

TECH SCIENCE PRESS
DOI: 10.32604/cmc.2023.027114

关键词

Ka-band; phased array antenna; T/R module

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In this paper, a novel structure of Ka-band based phased array antenna with calibration function is proposed. The antenna adopts the active phased array system and works in the dual polarization separation mode. The schematic diagram and design details of the Ka-band antenna are provided. The transceiver network and calibration network are discussed, and simulation and measurement results are shown.
In this paper, we have proposed a novel structure of Ka-band based phased array antenna with calibration function. In the design of Ka-band antenna, the active phased array system is adopted and the antenna would work in the dual polarization separation mode. We have given out the schematic diagram for the proposed Ka-band antenna, where the Ka-band antenna is in the form of waveguide slot array antenna, with 96 units in azimuth and 1 unit in distance. Each group of units is driven by a single-channel Transmitter/Receiver (T/R) component, and the whole array contains 192 T/R components in total. The size of the T/R cnd a 21-core low-freomponent is 55mm(length) x50mm (width) x5.8mm (height), 3 Sub-micro Sub-Miniature Push-on (SSMP) blind sockets aquency socket are designed on the two sides of the T/R component. In order to meet the technical specifications of phased array antenna, the Ka-band transceiver component is designed based on Low Temperatrue Co-fired Ceramic (LTCC) technology to achieve miniaturization and lightweight. In our approach, the feed network includes two parts: transceiver network and calibration network. The transceiver network consists of 24 1:8 time-delay power dividers, 12 two-way power dividers and 2 six-way time-delay power dividers. The power supply required by theKaband antenna unit is provided to each active component by the power module after Ka-band wavelet control distribution. Simulation and measurement results are given in the form of standing wave and scanning capability.

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