An antenna cable for enhancing and adjusting radio coverage is proposed. The presented solution is applied to the UHF RFID range of 866 MHz. With this leaky‐wave antenna cable, radio coverage can be efficient and customizable. A 10 × 100 mm resonator patch is attached on an opening on the cable's outer conductor to improve its radiating properties. The effect of its displacement is studied through simulations and measurements. The alignment affects both resonance frequency and signal strength. One resonator increases the radiated power by 2 dB (37%), multipliable by adding resonators. However, alignment accuracy of millimeters is needed in many cases. The greatest effect in both operating frequency and transmission loss magnitude comes from lifting the resonator from the cable's surface, averagely being 7.6% and 8.6% per mm in measured operating frequency and linear magnitude of S₂₁, respectively. Smallest changes are observed when moving the resonator along the cable, being 0.8% and 0.7% per mm, respectively.

中文翻译：

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用于UHF RFID阅读器的谐振器增强辐射电缆

提出了一种用于增强和调整无线电覆盖范围的天线电缆。提出的解决方案适用于866 MHz的UHF RFID范围。借助这种漏波天线电缆，可以有效且可自定义无线电覆盖范围。将10×100 mm的谐振器接线片安装在电缆外部导体的开口上，以改善其辐射性能。通过模拟和测量来研究其位移的影响。对准影响共振频率和信号强度。一个谐振器将辐射功率增加2 dB（37％），可通过添加谐振器来倍增。然而，在许多情况下需要毫米的对准精度。对工作频率和传输损耗量的最大影响来自将谐振器从电缆表面抬起，平均为7.6％和8。分别为₂₁。当沿着电缆移动谐振器时，观察到最小的变化，分别为每毫米0.8％和0.7％。