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首页> 外文期刊>IEEE Antennas and Wireless Propagation Letters >W-Band LTCC Circularly Polarized Antenna Array With Mixed U-Type Substrate Integrated Waveguide and Ridge Gap Waveguide Feeding Networks
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W-Band LTCC Circularly Polarized Antenna Array With Mixed U-Type Substrate Integrated Waveguide and Ridge Gap Waveguide Feeding Networks

机译：具有混合U型衬底集成波导和脊隙波导馈电网络的W波段LTCC圆极化天线阵列

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摘要

In this letter, a low-temperature co-fired ceramic (LTCC) substrate integrated 8 x 8 circularly polarized (CP) antenna array is proposed for the wideband and high-gain W-band antenna-in-package application. By introducing the planar L-probe together with the original coupling probe, the E-fields in the substrate-integrated-waveguide (SIW) cavity are changed, and additional E-field components with a 90 degrees phase difference are produced. Then, a CP antenna array is obtained. To reduce the losses in the feeding network, the gap waveguide technology is utilized with the SIW technology, as a mixed feeding network. To validate the proposed CP antenna array design, an 8x8 CP antenna array is fabricated by the LTCC technology and measured. Measured results show that the LTCC CP antenna array obtains a gain of 22.3 dBi, and its axial-ratio (AR) bandwidth is from89 to 98.5 GHz for AR< 3 dB. Besides, good agreements of the radiation patterns between the simulations andmeasurements are achieved within the operational frequency range.
机译：在这封信中，针对宽带和高增益W波段封装天线的应用，提出了集成8 x 8圆极化（CP）天线的低温共烧陶瓷（LTCC）基板。通过将平面L探针与原始耦合探针一起引入，可以改变衬底集成波导（SIW）腔中的电场，并产生相位差为90度的其他电场分量。然后，获得CP天线阵列。为了减少馈电网络中的损耗，间隙波导技术与SIW技术一起用作混合馈电网络。为了验证建议的CP天线阵列设计，通过LTCC技术制造并测量了8x8 CP天线阵列。测量结果表明，LTCC CP天线阵列获得22.3 dBi的增益，并且AR <3 dB时，其轴向比（AR）带宽为89至98.5 GHz。此外，在工作频率范围内，仿真和测量之间的辐射方向图也取得了良好的一致性。

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