Kim Kuntae, Han Yong-Hee, Moon Sung, Park Jung-Ho, Shin Hyun-Joon
Microsystem Research Center, Korea Institute of Science and Technology, P.O. Box 131, Cheongryang, Seoul 130-650, Korea.
Appl Opt. 2004 Oct 20;43(30):5594-9. doi: 10.1364/ao.43.005594.
A three-dimensional feed-horn antenna for the 10-microm-wavelength infrared region has been suggested, characterized, and fabricated. It is applied to an infrared detector for efficient collection of infrared radiation and to reduce background noise. The optimum size of the horn antenna was designed for maximum antenna directivity. The three-dimensional feed-horn antenna mold was fabricated by rotating and tilting illumination, whereas the antenna plate was acquired through electroplating. Antenna characteristics were measured by coupling of the antenna with a microbolometer. Measurement results show that the directivity of the antenna is 16.1 dB and the background noise is reduced by a factor of approximately 2 compared with an open-structure infrared detector.
一种用于10微米波长红外区域的三维馈源喇叭天线已被提出、表征并制造出来。它被应用于红外探测器，以高效收集红外辐射并降低背景噪声。喇叭天线的最佳尺寸是为了实现最大天线方向性而设计的。三维馈源喇叭天线模具是通过旋转和倾斜照明制造的，而天线板则通过电镀获得。通过将天线与微测辐射热计耦合来测量天线特性。测量结果表明，与开放式结构红外探测器相比，该天线的方向性为16.1分贝，背景噪声降低了约2倍。
