洩漏波陣列天線製成的新型無線電鑑別器

Abstract

本文發表一種結合洩漏模天線具有雙向接收/發射電磁波功能的無線電鑑別器. 所使用的天線操作在 11.9 GHz, 指向性為 20.4 dBi, 增益為 16.3 dB, 且 3-dB 頻寬為 (水平/垂直) 23□/24□. 在距離無線電鑑別器 2.5 公尺遠的地方接收調變後的信號, 我們得到解調後的信號和無線電鑑別器上的信號對應一致.

A battery-free radio frequency identification card which incorporates a dual-beam angle-diversity leaky-mode antenna is presented. The integrated antenna is operated at 11.9 GHz. and shows 20.4 dBi directivity, 16.3 dB gain, and 3-dB beamwidth of (Az/El) 23□/24□. By placing a horn antenna at 2.5 meters away for receiving the coded, modulated signals from the transponder, we obtain the demodulated signals matched identically to the coding signals at the transponder.