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首页> 外文期刊>IEEE Antennas and Wireless Propagation Letters >A Millimeter-Wave Gain-Filtering Transmitarray Antenna Design Using a Hybrid Lens
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A Millimeter-Wave Gain-Filtering Transmitarray Antenna Design Using a Hybrid Lens

机译：使用混合透镜的毫米波增益滤波发送阵列天线设计

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摘要

This letter proposes a millimeter-wave gain-filtering transmitarray (TA) antenna using a hybrid lens. The hybrid lens is incorporated by a substrate integrated waveguide (SIW) cavity bandpass filter and a dielectric lens. The dielectric lens serving as a phase shifter is seamlessly coated on the SIW bandpass filter to achieve a codesigned architecture. The proposed hybrid lens unit cell (UC) is required not only to fulfill the desired phase shifts but also maintain a stable bandpass response, simultaneously. Therefore, the specific shape of the dielectric-lens UC must be optimized to minimize its impacts on the bandpass response of the original SIW bandpass filter as much as possible to ensure the filtering performance of the proposed hybrid-lens UC. After some optimizations, the dielectric-lens UC based on the air-perforated dielectric square post (APDSP) is determined finally. The simulated results show that the bandpass responses of the hybrid-lens UC are still maintained when the profile of the APDSP-based dielectric-lens UC is varied to satisfy a full phase-cycle (2 pi). The proposed hybrid-lens UCs are arranged reasonably to construct a TA antenna to fulfill the high gain and gain-filtering performance. The simulated and measured results are consistent, revealing the proposed TA antenna has a gain of 25.5 dBi at 35 GHz and a bandpass gain-filtering response over 30-40 GHz.
机译：这封信提出了一种使用混合透镜的毫米波增益滤波发射阵列（TA）天线。混合透镜由衬底集成波导（SIW）腔带通滤波器和介电透镜组成。用作移相器的介电透镜被无缝地涂覆在SIW带通滤波器上，从而实现了代码签名架构。所提出的混合透镜单位晶胞（UC）不仅需要满足所需的相移，而且还需要同时保持稳定的带通响应。因此，必须优化介电透镜UC的特定形状，以尽可能减小其对原始SIW带通滤波器的带通响应的影响，以确保所提出的混合透镜UC的滤波性能。经过一些优化，最终确定了基于气孔介电方柱（APDSP）的介电透镜UC。仿真结果表明，当改变基于APDSP的介电透镜UC的轮廓以满足完整的相位周期（2 pi）时，混合透镜UC的带通响应仍然保持。所提出的混合透镜UC被合理安排以构造TA天线，以满足高增益和增益滤波性能。仿真和测量结果是一致的，表明所提出的TA天线在35 GHz时增益为25.5 dBi，在30-40 GHz范围内具有带通增益滤波响应。

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