Rotman Lens

# 罗特曼透镜 来源：https://en.wikipedia.org/wiki/Rotman_lens 来自维基百科，自由的百科全书 一张罗特曼透镜的照片（https://en.wikipedia.org/wiki/File:Rotman_lens.jpg）一种微带线（https://en.wikipedia.org/wiki/Microstrip）实现的罗特曼透镜 一种**罗特曼透镜**（有时也称为**罗特曼-特纳透镜**）是一种用于射频（https://en.wikipedia.org/wiki/Radio_frequency）应用的波束成形（https://en.wikipedia.org/wiki/Beamforming）的无源电子组件（https://en.wikipedia.org/wiki/Passive_electronic_component）。该原理由沃尔特·罗特曼（https://en.wikipedia.org/wiki/Walter_Rotman）和 R. F. 特纳于 1963 年首次发表，[\[1\]](https://en.wikipedia.org/wiki/Rotman_lens#cite_note-1)，并由罗特曼同年获得专利。[\[2\]](https://en.wikipedia.org/wiki/Rotman_lens#cite_note-2) [](https://en.wikipedia.org/wiki/File:Rotman_lens_diagram.png)一个罗特曼透镜上的波束端口、阵列端口和虚拟端口 该组件允许在不使用移相器（https://en.wikipedia.org/wiki/Phase_shift_module）的情况下形成多个天线波束。它由一系列输入端口（也称为波束端口）和输出端口（也称为阵列端口）组成。[\[3\]](https://en.wikipedia.org/wiki/Rotman_lens#cite_note-:0-3)施加到一个输入端口上的信号以不同的相位延迟（https://en.wikipedia.org/wiki/Phase_(waves)#Phase_shift）到达每个输出端口。如果输出端口连接到天线阵列（https://en.wikipedia.org/wiki/Antenna_array）中的各个天线上，则可以通过切换将信号发送到哪个输入端口来使波束指向不同方向。[\[4\]](https://en.wikipedia.org/wiki/Rotman_lens#cite_note-4)设计中可以添加所谓的虚拟端口，这些端口被端接（https://en.wikipedia.org/wiki/Electrical_termination）以吸收射入的电场，从而防止透镜侧壁反射。[\[3\]](https://en.wikipedia.org/wiki/Rotman_lens#cite_note-:0-3)[\[5\]](https://en.wikipedia.org/wiki/Rotman_lens#cite_note-5) 罗特曼透镜既可以由中空的导电波导（https://en.wikipedia.org/wiki/Waveguide）构成，也可以制作在带状线（https://en.wikipedia.org/wiki/Stripline）或微带线基板上。它们常用于雷达（https://en.wikipedia.org/wiki/Radar）应用中的波束成形。[\[6\]](https://en.wikipedia.org/wiki/Rotman_lens#cite_note-6) 1. ↑ (https://en.wikipedia.org/wiki/Rotman_lens#cite_ref-1) Rotman, W.; Turner, R. (1963年11月)。"Wide-angle microwave lens for line source applications". *IEEE Transactions on Antennas and Propagation*. **11** (6):623–632. Bibcode (https://en.wikipedia.org/wiki/Bibcode_(identifier)):1963ITAP...11..623R (https://ui.adsabs.harvard.edu/abs/1963ITAP...11..623R). doi (https://en.wikipedia.org/wiki/Doi_(identifier)):10.1109/TAP.1963.1138114 (https://doi.org/10.1109%2FTAP.1963.1138114). ISSN (https://en.wikipedia.org/wiki/ISSN_(identifier)) 0096-1973 (https://search.worldcat.org/issn/0096-1973). 2. ↑ (https://en.wikipedia.org/wiki/Rotman_lens#cite_ref-2) US3170158A (https://patents.google.com/patent/US3170158/en), Rotman, Walter, "Multiple beam radar antenna system", 颁发日期 1965-02-16 存档 (https://web.archive.org/web/20240607134817/https://patents.google.com/patent/US3170158/en) 2024-06-07 于 Wayback Machine (https://en.wikipedia.org/wiki/Wayback_Machine) 3. ↑ (https://en.wikipedia.org/wiki/Rotman_lens#cite_ref-:0_3-0) "Impact of Substrate Thickness on Rotman Lens Designs | Remcom" (https://www.remcom.com/resources/examples/impact-of-substrate-thickness-on-rotman-lens-designs). *www.remcom.com*. 存档 (https://web.archive.org/web/20240608093809/https://www.remcom.com/resources/examples/impact-of-substrate-thickness-on-rotman-lens-designs) 自原始版本于 2024-06-08。访问日期 2024-06-08. 4. ↑ (https://en.wikipedia.org/wiki/Rotman_lens#cite_ref-4) "Rotman Lens" (https://www.microwaves101.com/encyclopedias/rotman-lens). *Microwaves101*. 存档 (https://web.archive.org/web/20240607134818/https://www.microwaves101.com/encyclopedias/rotman-lens) 自原始版本于 2024-06-07。访问日期 2024-06-07. 5. ↑ (https://en.wikipedia.org/wiki/Rotman_lens#cite_ref-5) Kilic, Ozlem; Weiss, Steven J. (2010年6月). "Rotman lens applications for the US Army: A review of history, present, and future" (https://ieeexplore.ieee.org/document/7909283). *URSI Radio Science Bulletin*. **2010** (332):10–23 – via IEEE Explore. 6. ↑ (https://en.wikipedia.org/wiki/Rotman_lens#cite_ref-6) "Rotman Lens - Radartutorial" (https://www.radartutorial.eu/06.antennas/an75.en.html). *www.radartutorial.eu*. 存档 (https://web.archive.org/web/20240607134819/https://www.radartutorial.eu/06.antennas/an75.en.html) 自原始版本于 2024-06-07。访问日期 2024-06-07.