Diced and grounded broadband bow-tie antenna with tuning stub for resonant tunnelling diode terahertz oscillators
Diced and grounded broadband bow-tie antenna with tuning stub for resonant tunnelling diode terahertz oscillators
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用于谐振隧道二极管太赫兹振荡器的带调谐短截线的切割和接地宽带领结天线
DOI：
10.1049/ic.2016.0013
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发表时间：
2016
期刊：
影响因子：
--
通讯作者：
Alharbi K
中科院分区：
文献类型：
--
作者：
Alharbi K
由于大介电常数的影响，与磷化铟（InP）基共振隧穿二极管（RTD）振荡器集成的天线的辐射主要通过衬底。因此，半球形透镜用于从基板的背面提取信号。在这项研究中，作者提出了一个宽带蝶形缝隙天线与调谐短截线，这是切割和安装在接地平面，以减轻基板的影响。这里，去除天线导体周围的大介电常数基板。此外，切割基板下方的接地平面充当反射器，并且最终天线辐射到空气侧方向。在这项研究中，以及RTD振荡器的天线集成。设计并表征了双端口蝶形缝隙天线，并显示了与基于互耦的功率组合RTD振荡器电路集成的适用性。天线是使用电子束光刻在半绝缘InP衬底上制造的。模拟和测量的带宽几乎扩展了整个频率范围230- 325 GHz。仿真结果显示，在280 GHz时，空气侧辐射方向图和天线增益约为11 dB。仿真还表明，天线可以用50 Ω或30 Ω馈线（即合适的馈线）馈电，而不会影响其性能，这可能有利于RTD振荡器的最佳加载。
Radiation from antennas integrated with indium phosphide (InP)‐based resonant tunnelling diode (RTD) oscillators is mainly through the substrate because of the effects of the large dielectric constant. Therefore, hemispherical lenses are used to extract the signal from the backside of the substrate. In this study the authors present a broadband bow‐tie slot antenna with a tuning stub which is diced and mounted on a ground plane to alleviate the substrate effects. Here, the large dielectric constant substrate around the antenna conductor is removed. In addition, the ground plane underneath the diced substrate acts as a reflector and, ultimately, the antenna radiates to the air‐side direction. Antenna integration with RTD oscillators is described in this study as well. Two‐port bow‐tie slot antennas were designed and characterised and showed the suitability of integration with power combining RTD oscillator circuits which are based on mutual coupling. The antennas were fabricated using electron beam lithography on a semi‐insulating InP substrate. Simulated and measured bandwidth almost extends the entire frequency range 230–325GHz. Simulations shows air‐side radiation pattern and antenna gain of around 11dB at 280GHz. Simulations also show that the antenna may be fed with a 50‐Ω or 30‐Ω feed line, i.e. suitable feed lines, without compromising its performance which may prove beneficial for optimum loading of RTD oscillators.
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DOI：
10.1109/iciprm.2014.6880531
发表时间：
2014
期刊：
--
影响因子：
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作者：
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DOI：
--
发表时间：
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期刊：
European Microwave Conference
影响因子：
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通讯作者：
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影响因子：
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通讯作者：
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影响因子：
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DOI：
--
发表时间：
2015
期刊：
2015 IEEE Compound Semiconductor Integrated Circuit Symposium (CSICS)
影响因子：
--
作者：
Jue Wang;K. Alharbi;A. Ofiare;Haiping Zhou;A. Khalid;D. Cumming;E. Wasige
通讯作者：
E. Wasige