220 GHz集成TR组件关键技术研究
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作者单位:

1.南京信息工程大学;2.上海航天电子技术研究所;3.航天长征火箭技术有限公司

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装备预研重点实验室基金


Research on key technologies of 220 GHz integrated T/R module
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Affiliation:

1.Nanjing University of Information Science and Technology;2.Shanghai Aerospace Electronic Technology Institute;3.Aerospace Long March Launch Vehicle Technology CO., LTD

Fund Project:

National Defense Science and Technology Key Laboratory Fund

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    摘要:

    研制了一种工作于220 GHz频段的收发组件。该组件由本振链路、发射链路、接收链路三部分组成,具有高集成度的特点。为解决链路中杂散信号的干扰问题,设计了218~226 GHz波导带通滤波器。该滤波器采用双模谐振腔结构,在通带左侧引入了一个传输零点,对214 GHz杂散信号起到了60 dBc的抑制。为达到发射功率指标,采用了改进型E面魔T构成四路功率合成放大器,该模块实现了72.5%的合成效率及高于82 mW的发射功率。最后经实测:在219.5~221 GHz的频段内,发射功率为82~95 mW,接收链路噪声系数小于7.1 dB,接收增益为5.1~6.0 dB,尺寸为65*70*30 mm3。

    Abstract:

    A transceiver module operating at the 220 GHz frequency band was developed, consisting of three parts: a local oscillator chain, a transmitter chain, and a receiver chain, featuring high integration. A 218~226 GHz waveguide bandpass filter was designed to suppress spurious signals in the chain. The filter adopts a dual-mode resonant cavity structure to introduce a transmission zero on the left side of the passband, which suppresses the 214 GHz spurious signal by 60 dBc. An improved E-plane magic-T structure was used to form a four-way power combining amplifier to meet the requirement of transmit power. This module achieves a power combining efficiency of 72.5% and the output power is higher than 82 mW. The measured results show that in the 219.5~221 GHz frequency range, the transmit power is 82~95 mW, the noise figure of the receiver is less than 7.1 dB, the receive gain is 5.1~6.0 dB, and the volume of module is 65×70×30 mm3.

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  • 收稿日期:2024-11-04
  • 最后修改日期:2024-12-05
  • 录用日期:2024-12-09
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